SmartBank Advanced owners/installation manual
Contents
1. batteries is now much lower than the charge source believes it to be This severely reduces the charge rate into the batteries A 1 volt drop in charge voltage can easily translate to a 75 drop in charge current Some means to compensate for this voltage drop is required the most common solution being an external alternator controller An external alternator controller is more expensive than SmartBank is orders of magnitude more complicated to install and only cures one of the problems Also many alternator suppliers will not honour the warranty if the alternator has been tampered with in order to fit an external controller Thirdly even assuming an external alternator controller has been installed in order to compensate for the voltage drop across the diode the voltage drop across the diode varies as a function of the current through it and this means that one battery will be correctly charged whilst the other will either be severely overcharged or severely undercharged There is nothing that can be done to correct this problem with diode splitters Finally if a combi inverter charger combination is being used there is no way to charge the other battery bank Quite simply nothing can be done about this problem The other common option is a battery paralleling relay energised from the engine driven alternator This solution suffers none of the problems associated with the split charge diode solution apart from the fact that it will2. factors and will vary considerably particularly dependant upon battery voltage the size of the load and the size of the charger Immediately following connection of the split charge system it may be the case that a deeply discharged auxiliary bank will drag the overall voltage below the disconnect voltage and ordinarily SmartGauge would therefore almost immediately separate the batteries as a normal simple voltage controlled relay would do SmartGauge can sense this situation and if this occurs SmartGauge will hold the batteries connected for a certain period known as the Hold time to enable the auxiliary battery voltage to rise above the disconnect level The time of this Hold function varies and is calculated on the fly When this function is active the display will alternate between the normal display and Hold Note that the Hold display will only be active if the function is actually holding the split charge system active at a time when ordinarily it would have disconnected This feature is similar to the Hold function in SmartBank Standard but in the case of a SmartGauge SmartBank Advanced combination it is far more sophisticated If B2 is set to Engine start b2 E and a charge source is applied to this battery then engine start battery priority charging will take place automatically Whilst this is active the display will alternate between the normal display and EP Engine Priority The time of thi
3. gives engine start priority charging and will split the charge from any charge source connected to either battery 1 or battery 2 to both the other 2 battery banks Option 2 A Install the system as above but with a single battery paralleling relay The system will operate exactly as above except the 2 auxiliary bank will never be charged B Now add a SmartBank Standard connected between battery 1 and the 2 auxiliary battery bank This system although more expensive is probably close to the ultimate in split charging 3 battery banks Full charge priority is given to the engine start battery Secondary charge priority is given to the 1 auxiliary bank with the system finally charging the 2 auxiliary battery bank Due to the various parameters that can be adjusted on SmartBank Advanced and SmartBank Standard the priority level can be set to suit any and every possible combination of battery types installation and use Also any charger connected to any battery will ensure all 3 battery banks are charged Finally there is Option 3 A Install the system as per A in option 2 above B In addition another SmartGauge SmartBank Advanced combination is installed monitoring the 2 auxiliary battery bank as battery 1 and the 1 auxiliary battery bank as battery 2 This final option being the most expensive and complicated to install has all the advantages of option 2 but in addition also displays the charge status of the 2
4. is physically identical to SmartBank Standard and the user connections remain the same Unlike SmartBank Standard SmartBank Advanced will not operate alone It merely operates as a slave device controlled by SmartGauge SmartBank Standard can be modified to become a SmartBank advanced to enable the extra functions to be utilised Full details are available in the technical section of the website at www smartgauge co uk General SmartBank operation A4 way RJ11 lead connects between the remote socket on the SmartBank either the SmartBank Standard or the Advanced unit and the RJ11 socket on the back of the SmartGauge IMPORTANT NOTE There are four types of RJ11 lead commonly available One group uses 4 conductors the other group uses 6 conductors but both use the same type of connector SmartGauge SmartBank communications will operate with either the 4 or 6 conductor types IMPORTANT NOTE Of these 2 groups 4 conductor or 6 conductor each has 2 different types One is generally referred to as straight through or straight wired In this type pin 1 of one end is connected to pin 1 of the other end Pin 2 is connected to pin 2 etc This type will NOT operate with SmartGauge SmartBank and may damage either or both units The other type is by far the most common in this type commonly referred to as cross wired pin 1 of one end is connected to pin 6 of the other end pin 2 goes to pin 5 etc i e each end is a mirror i
5. usual you just won t know about it E11 SmartBank either by it s own decision in the case of SmartBank Standard or under the control of SmartGauge in the case of SmartBank Advanced has attempted to operate the split charge relay but SmartGauge is measuring different voltages on the 2 batteries This would indicate either a faulty relay or faulty relay wiring In either case split charging is probably not taking place E12 Electronic Overload in SmartBank This error is very rare E13 SmartBank Standard has connected but the disconnect preset adjustment is set higher than the connect preset adjustment This is incorrect SmartBank will probably cycle between states for some considerable time Reset the adjustments according to the SmartBank owners Installation manual This error only applies to SmartBank Standard You will never see it on a SmartBank Advanced because the setup menu will not permit the disconnect voltage to be set higher than the connect voltage Note that error codes relating to SmartGauge begin with zero those relating to SmartBank begin with 1 Disabling the SmartBank error codes in the SmartBank setup menu will disable E11 and E13 Note that E10 and E12 cannot be disabled The reason E11 can be disabled is to prevent nuisance error reports in poor installations where the cabling between the 2 battery banks is insufficiently sized Also some professional installers use the SmartGauge SmartBank combination for purposes
6. SmartGauge SmartBank combination owners installation manual This manual covers use of both the SmartBank Standard and the SmartBank Advanced when used in conjunction with the SmartGauge battery monitor SmartGauge software revision r1 07 r1 08 r1 09 r1 10 71 11 11 12 r2 01 R2 02 We have been forced to add the following warnings to this manual WARNING Incorrect installation of this product may result in serious damage to the unit which will NOT be covered under warranty Pay particular attention to the following Incorrect battery polarity should not affect the unit It simply will not work However if used in conjunction with the SmartGauge incorrect battery polarity will almost certainly damage one or both units Such installation leaves very distinct tell tale signs in both units and will NOT be covered under warranty Use of the incorrect type of communications cable between SmartGauge and SmartBank may damage one or both units Such damage will NOT be covered under warranty No matter how careful you think you are NEVER attempt to carry out any work whether installation or modification to any live electrical circuits Disconnect ALL forms of power before doing any installation or modification work Failure to adhere to this simple rule will almost certainly result in damage to the equipment which will NOT be covered under warranty It only takes one simple slip with a screwdriver or wire for just one nanosecond to do several h
7. auge will show an E 10 error Whenever a SmartBank is connected to SmartGauge the green SmartBank SmartlInterface LED will blink briefly once per second when in standby mode Whenever SmartBank is operating the split charge system this LED will be on solid irrespective of any other settings SmartBank Advanced only Assuming dt F display type Full is selected Forcing a manual connect will alternate the display between the normal display and EC Emergency Connect for the period of the emergency connect 30 seconds When SmartGauge has detected a valid charge source the display will alternate between the normal display and CP Connect Pending The time from this display appearing to SmartBank actually operating the split charge system is dependant upon many factors and will vary considerably particularly dependant upon battery voltage charge status and the size of the charger When SmartBank is operating the split charge system the display will alternate between the normal display and Con Connect When in connect mode and SmartGauge has detected the charge source may have been switched off or a load that exceeds the capability of the charger has been connected the display will alternate between the normal display and dP disconnect Pending The time from this display appearing to SmartBank actually disengaging the split charge system in order to prevent cross discharging is dependant upon many
8. auxiliary bank We have only ever been involved in 3 installations of this type One was in the SmartGauge designer s own boat one was on a test rig in the workshop and the third was on a customer s RV The systems whilst being somewhat expensive and complicated to install and understand worked beautifully allowing anything to be adjusted but also relying upon the intelligence of the SmartGauge SmartBank combination to make up for setup errors Existing SmartBank installations For those adding a SmartGauge to an existing SmartBank installation there are basically 2 options A Keep the setup as it is currently installed and simply connect SmartBank to SmartGauge with the plug in RJ11 lead This allows SmartGauge to display the status of SmartBank adds the remote emergency connect function and also adds error reporting if problems arise with SmartBank or the split charge system in general B Convert the SmartBank Standard already installed to a SmartBank advanced and benefit from all the extra features the SmartBank advanced has Details for conversion of SmartBank Standard to SmartBank Advanced are available in the technical section of the website at www smartgauge co uk SmartBank error codes E10 Communication has been lost with SmartBank The RJ11 cable has probably been pulled out or damaged With a SmartBank Advanced split charging will cease to function With a SmartBank Standard split charging will continue to operate as
9. ctors make this type of operation using SmartBank unique and somewhat more sophisticated than usual Let s start by taking a look at the various options for split charging Basically they fall into 2 groups relay based and diode based The problems with the diode based solution are in the main fourfold there are many many other problems with split charge diodes but these are the most serious Firstly the diode can only split the charge from one source So assume the split charge diode has been installed in the alternator output This means that the alternator can now charge 2 separate battery banks from one charge source If another charger say an AC powered charger or a wind turbine is connected to one of the battery banks no charge will appear on the other battery bank In order to charge the other battery bank another means of split charging has to be installed Secondly the diode drops a substantial voltage whilst in operation This voltage drop varies between around 0 5 volts at light charge rates up to around 1 4 volts at heavy charge rates This creates 2 problems it represents a serious amount of wasted power power that should be going into the batteries Instead it is simply wasted as heat a very substantial amount of heat Split charge diode manufacturers and suppliers will deny this however if they don t waste power in the form of heat why do they have such huge heatsinks on them Even worse is that the voltage as seen by the
10. his is the setup menu that will appear if a SmartBank Standard has been installed Only one function is available the ability to enable or disable SmartBank errors Not all errors can be disabled Now refer to the flowchart headed SmartBank Advanced setup menu This is the menu that will appear if a SmartBank advanced has been installed You will notice there are considerably more functions on this menu Specifically they are dt F or dt L This selects the display type for SmartBank activity dt F will show Full reports of all SmartBank activity on the 7 segment display dt L will only show the activity via the front panel LEDs EC 0 or EC 1 this enables or disables SmartBank error codes Note that not all SmartBank errors can be disabled Note that with SmartGauge software revision r1 11 and later if the display type for SmartBank is set to dt L AND error codes are disabled EC 0 then SmartGauge will not report Sb A or Sb S on detection of SmartBank Advanced or SmartBank Standard and will not generate an E 10 error on communications failure with SmartBank In certain installations this is desirable The next display looks just like a normal voltage display In actual fact it is because this is the nominal voltage at which SmartBank will disconnect the battery paralleling relay The next item is the same as the above except in this case it is the nominal voltage at which SmartBa
11. ither another Auxiliary bank or as an Engine start battery The algorithms SmartGauge uses to decide when and when not to operate the split charge system depend upon which type of battery it is set to If set to Auxiliary then SmartGauge treats both batteries in the same way If set to Engine start SmartGauge gives charging priority to the engine start battery when the charge source is connected to the engine battery What this means in practice is that after a vehicle or boat has been started the engine driven alternator will charge the engine start battery first before the power is diverted to the auxiliary battery bank This helps to ensure that no matter what heavy loads are placed on the system overall the engine battery always receives sufficient charge to replenish what was removed in starting the engine SmartGauge achieves this by delaying the time before connecting the battery paralleling relay The time of this delay varies drastically depending upon the charge voltage the rate of change of engine start battery voltage the charge status of the auxiliary battery bank the size of the alternator and several other measurements and calculations During this Engine Priority time SmartGauge will be displaying the normal display either volts or status alternating with EP for Engine Priority The time of this priority can vary between about 90 seconds and 35 minutes depending upon the factors described above Note that if the charge
12. k as battery 2 and benefit from the ability to monitor auxiliary bank 2 voltage but lose the benefits of engine start battery priority charging Remember a SmartBank Standard will still have to be incorporated in this case in order to split the charge from the battery which SmartGauge is not monitoring the engine start battery If the 2 auxiliary bank is only used for light duty equipment perhaps communications equipment in an emergency vehicle then the charge status of this battery is probably never an issue as it will be receiving regular charges far in excess of it s actual requirements In this case it is probably not necessary to monitor the battery voltage and B2 would better be utilised on the engine battery in order to benefit from full engine start priority charging On the other hand if it is considered very important to monitor the auxiliary bank 2 voltage then either it will be necessary to lose the benefits of engine start priority charging or it will be necessary to install another meter to monitor auxiliary bank 2 As regards splitting the charge between the 2 battery banks again there are various options Option 1 A Install the system with the main auxiliary bank as battery 1 and the engine start battery as batt 2 B Install a SmartBank Advanced controlled by SmartGauge operating 2 relays One connected between battery 1 and battery 2 The other relay connected between battery 1 and the 2nd auxiliary battery This
13. mage of the other This is the type required These leads are available from your SmartGauge supplier Clarification note The 4 and 6 conductor types use the same connector at each end so the 4 conductor cable does not use the outside 2 pins of the connector The 4 conductor type uses pins 2 3 4 and 5 SmartBank SmartGauge communications only uses the middle four conductors IMPORTANT NOTE Attempting to extend a cross wired RJ11 lead by use of a back to back socket and another lead will result in turning the lead into a straight through RJ11 lead which will not work and may damage SmartGauge or SmartBank IMPORTANT NOTE The maximum acceptable lead length is 10m Leads longer than this may cause communication errors between SmartGauge and SmartBank NOTE Fleet operators or builders will probably find it cheaper and more convenient to obtain their own crimping tools cable and connectors and make up their own leads on site This obviously would not be viable for a single installation the crimping tool alone would probably cost more than a lead Once the correct lead has been obtained On plugging this lead in assuming the rest of SmartBank has been connected correctly SmartGauge will auto detect which type of SmartBank has been installed and display either Sb S in the case of SmartBank Standard or Sb A in the case of SmartBank Advanced or a SmartBank Standard that has been modified to a SmartBa
14. nk Advanced The functions and features for each unit are different and selected automatically by SmartGauge depending upon which type of SmartBank has been detected The user installer does not have to select the correct type Refer to the flow chart headed SmartGauge setup menu with SmartBank Installed and compare it with the standard SmartGauge setup menu flow chart There are 3 differences l On entering the setup menu the first item is now an option to select Su 1 or Su 2 Setup 1 or Setup 2 Su 1 continues onto the normal SmartGauge setup menu Su 2 moves onto the SmartBank setup menu This option does not exist unless a SmartBank is installed 2 On the SmartGauge setup menu a further option has appeared on the Secondary Alarms function This allows the Secondary Alarm to be triggered by errors from SmartBank This option does not appear in the SmartGauge setup menu unless a SmartBank is connected 3 Also on the SmartGauge setup menu a further option has appeared on the display type function This allows any SmartBank activity to wake up the SmartGauge display when it has gone into sleep mode Again this option does not appear in the SmartGauge menu unless a SmartBank is connected Selecting Su 2 will enter the SmartBank setup menu The items on this menu depend upon which type of SmartBank has been connected to SmartGauge Refer to the flow chart headed SmartBank Standard setup menu T
15. nk will connect the battery paralleling relay Note that these voltages are described above as being nominal This is because they are a starting point for SmartGauge SmartGauge adjusts these voltages on the fly depending upon what happens to the state of charge of the batteries Also note that these voltages are set by default as a part of the battery type If the battery type is changed SmartGauge will load in the default connect and disconnect voltages for SmartBank operation for that particular battery type They can be changed by the user by entering the SmartBank setup menu Whichever was changed last will take precedence Note that simply looking at the battery type will not load in the defaults The battery type has to actually be changed in order for the previous values to be overwritten The next option is the SmartBank high voltage disconnect If either battery voltage reaches this level SmartBank will disconnect the relay to prevent damage to the other battery The battery voltage has to fall back down below this level in order for the relay to be reconnected There is some hysteresis built into this setting The battery voltage actually has to fall below the high voltage setting by 0 1 volts or more in order to reconnect The factory default for this setting is 16 00 volts The adjustment range is the SmartBank connect voltage up to 16 50 volts The next option is b2 E or b2 A This allows battery 2 to be set as e
16. of the vehicle would not be aware that the auxiliary battery was not being charged For professonal installers only defeating power save The pulse width modulation power save feature of SmartGauge Smartbank can be defeated Full details are available in the technical section of the website at www smartgauge co uk The SmartGauge setup menus are different once the unit is interfaced to SmartBank This is to prevent the setup menus confusing the user when no SmartBank is installed The menu flowcharts will change as follows The main SmartGauge setup will have additional functions thus SmartGauge Setup Menu with SmartBank installed 12 65 Normal operation m Batt 2 Button m Status Button m volts Button E Blank Display x May Vary With a SmartBank Standard installed the SmartBank Setup menu Su 2 will look like this SmartBank Standard Setup Menu Normal operation To SmartGauge Setup Menu Normal operation m Batt 2 Button m Status Button m volts Button E Blank Display With a SmartBank Advanced installed the setup menu will look like this SmartBank Advanced Setup Menu 255 Normal operation m Batt 2 Button m Status Button m Yolts Button 071004
17. only split the charge from the alternator When another charge source is introduced it does nothing and only one battery bank gets charged More serious is the problem that many new alternators simply do not have the old D or ind terminal commonly used to energise this relay There is in actual fact another solution and that is the manual 1 2 both off type battery switch This option actually works extremely well far better than the diode solution It does however suffer one very serious drawback If the operator forgets to switch over to the correct position at the right time then either entire battery banks go uncharged or both banks get discharged leaving no way to start the engine This problem could also arise in the case of a failed charger This is the 21 century Should we really be considering manual error prone systems when fully automatic state of the art systems are available that are simpler to install and not that much more expensive SmartBank cures all these problems once and for all It is installed once and will then forever after take care of your split charge needs totally automatically whatever else changes in the system however the system is operated SmartBank splits the charge from any charge source to any battery bank Totally automatically SmartGauge and SmartBank in combination SmartGauge incorporates an RJ11 socket in the rear access panel for interfacing to the SmartBank split charge
18. other than split charging and in some of these instances the closure of the relay does not necessarily mean that both battery banks should be at the same voltage The reason E13 can be disabled is that some professional installers use some clever SmartBank tricks that require them to set the connect and disconnect presets to values that would otherwise be incorrect General operation of SmartGauge SmartBank combination SmartBank Standard AND SmartBank Advanced Error codes are identical for each unit with the exception of E13 as detailed above This error will never show with a SmartBank Advanced Pressing the Volts button for 5 seconds will force an Emergency Connect in order to permit the auxiliary battery bank to be used to assist engine starting This is a timed connect that will disconnect after 30 seconds Also if Primary and Secondary alarms have not been set this Emergency Connect will trigger the alarm output If any sort of alarm has been set on SmartGauge then the Emergency Connect will not trigger the alarm output This is a feature added for certain professional fleet operators and is probably not a feature that will be utilised by most people See Note 1 in the addendum When first connected SmartGauge auto detects SmartBank and displays Sb S or Sb A for Smartbank Standard or Smartbank Advanced respectively If SmartGauge loses communication with SmartBank probably the cable has been pulled out or damaged SmartG
19. ry battery bank from receiving instant charge immediately following vehicle engine start If this happens it is not because of the priority charge function It is because the alternator is not big enough to charge the auxiliary bank and the discharged engine battery If the alternator was big enough to charge both battery banks the Engine Priority function would not be active The Engine Priority function only operates if the alternator is not big enough to charge both flat battery banks The correct solution is to increase the size of the alternator However if you insist in this incorrect assumption then the engine battery priority charge function can be defeated by setting battery 2 as being an auxiliary battery instead of an engine start battery at the end of the SmartBank Advanced setup menu This is not recommended by us as it may under extreme circumstances i e in very cold weather with a poorly engine tired heater plugs and lazy starter motor mean that the engine battery receives insufficient charge to ensure reliable engine starting on the next start The same fleet operators are usually under the misapprehension that this situation would not arise in the case of the same installation using a diode split charge system This simply isn t the case Exactly the same situation would arise i e the auxiliary bank would not receive any charge until some time after the engine had been started the only difference would be that the operator
20. s Engine Priority will vary drastically between about 90 seconds and 35 minutes depending upon the state of charge of all the batteries the size of the connected charger etc It is totally automatic and calculated continuously on the fly If SmartGauge SmartBank advanced has disconnected the relay due to the battery voltage exceeding the high voltage disconnect level the display will alternate between the normal display and HU d High Uoltage disconnect The flashing of the SmartBank LED will also be completely different In standby this LED blinks very briefly once per second During high voltage disconnect the LED flashes alternately on and off with equal times on each state Most of these displays may only be required during initial setting up of the system Indeed some people may consider them to be a nuisance in normal use For this reason they can all be disabled Simply enter the SmartBank setup menu and switch the display type from Full dt F to LEDs only dt L Do s and Don t s Do not expect a SmartGauge SmartBank combination to operate as a simple voltage controlled relay It is far more sophisticated than that Just because a human following a cursory glance or prod with some meter probes thinks it should be operating the split charge system does mean it should SmartGauge takes over 30 measurements and makes tens of thousands of calculations every second It is far better at deciding when to operate
21. source is connected to the auxiliary bank Engine Priorty charging will not take place Advanced SmartGauge SmartBank installations That completes the setup of the SmartBank functions and the use with twin battery banks Some installations utilise more than 2 battery banks and there are various ways SmartGauge SmartBank can be used to control charging monitoring of such installations The SmartGauge would normally be installed so that it monitors the charge status of the most commonly used auxiliary bank i e this battery bank would be installed as battery 1 This allows the charge status of the main auxiliary battery bank to be monitored and all alarm functions to operate on this battery bank The choice of which battery to connect in as battery 2 depends upon how the system will be used Normally battery 2 would be connected to the engine start battery When used in conjunction with SmartBank Advanced this allows full engine start priority charging to take place which is an advantage probably not wisely lost However the disadvantage is that the battery voltage of the second auxiliary battery cannot be monitored This may or may not be an issue depending upon the installation and it s use The choice comes down to 1 Install the system with the engine battery as battery 2 and benefit from full engine start priority charging but lose the ability to monitor the 2 auxiliary bank voltage 2 Install the system with the 2 auxiliary ban
22. system With the introduction of the SmartGauge SmartBank combination this sophistication has now been taken one step further There are 2 types of SmartBank available for use with SmartGauge SmartBank Standard This is the totally self contained SmartBank split charge system that operates independently of SmartGauge When connected to SmartGauge SmartGauge operates as a remote monitor displaying the current status of SmartBank by way of the front panel LEDs In addition SmartGauge will display various errors if and when problems arise in SmartBank or the split charging installation These errors alert the user to problems such as a faulty relay faulty relay wiring incorrect settings inside SmartBank or communication failures between SmartGauge and SmartBank Also the front panel buttons on SmartGauge permit a manual emergency connect to force SmartBank to parallel both battery banks to enable the engine to be started from the auxiliary battery bank SmartBank Standard can be modified to become a SmartBank advanced to enable the extra functions to be utilised Full details are available in the technical section of the website at www smartgauge co uk SmartBank Advanced This is a slave type device to operate the split charge relay system in the same way as the SmartBank Standard but in this case all control comes from SmartGauge SmartGauge has many extra features over and above those of SmartBank standard SmartBank Advanced
23. the split charge system than any human could ever be Do not be alarmed and assume a fault if the battery paralleling relay is alternating between connected and disconnected This is not a fault in SmartGauge or SmartBank It could be that the system is doing exactly what it is supposed to do i e preventing cross discharging between battery banks But it is possible that it is the result of either incorrect settings connect and disconnect voltages set too close or far more likely a charger that is simply far too small for the total batteries in the system Even with a charger that is too small it is usually possible to find a compromise in the settings that allows the system to operate until the charger is replaced with one of the correct size Fleet operator functions Alarm on emergency connect As noted in the main section of this manual if no alarms have been set of either Primary Alarm type or Secondary Alarm type then whenever the emergency parallel function is invoked the alarm output will trigger The alarm output will remain triggered for the period of the emergency connect This feature can be utilised by fleet builders to inhibit functions of other equipment during the emergency connect period or to trigger an audible alarm whenever the emergency connect function is used Defeating engine start battery priority charging For some reason many fleet operators think that the Engine Priority charging function prevents their auxilia
24. undred pounds worth of damage The C1 and C2 terminals carry POWER signals to the relay coil Short circuiting these together and or to the battery positive or battery negative will almost certainly damage the unit Quite possibly beyond repair Such damage will NOT be covered under warranty If using an SW180 2 relay pay particular attention to the relay coil terminals There are not 4 terminals There are 2 The opposite posts of each terminal are the same conductor Connecting C1 and C2 to the opposite sides results in a short circuit on C1 and C2 This will result in irrepairable damage to SmartBank Such damage will NOT be covered under warranty If used in conjunction with SmartGauge failure to provide a proper negative connection to the GND terminal will almost certainly result in irrepairable damage to SmartGauge which will NOT be covered under warranty Remember we designed this product We know it inside out we know what every single component does and know exactly what can cause what symptoms If the unit is damaged as a result of incorrect installation we WILL know and will NOT cover it under warranty Please for your own benefit heed these warnings SmartBank is a split charge control system based on the simple principle of paralleling batteries when they are being charged and disconnecting them when they are being discharged This is a very common method of split charging batteries from a single charge source however various fa
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