West Mountain Radio Battery Box Specifications
Contents
1. West Mountain Radio 3 Operating Manual every wire has resistance longer wires have more resistance More than a 10 run of 10 wire is not quite adequate to supply the RIGrunner to full output without a significant voltage drop Install in a cool dry place with good ventilation For example do not put it on top of your amplifier or room heater or cover it with something It is recommended to not put it in the engine compartment of your car or directly on the floor of a car rain from open windows or snow covered boots may cause water damage Connecting your equipment Recognizing that RIGrunner comes standard with Powerpole updating your cables that supply or use 12 volts DC with Powerpole will improve the convenience of quick connections and use of your equipment Remember Powerpole are genderless and the same connector arrangement works for both supply and load Powerpole can be used to charge or power batteries all using the same connectors Powerpole can be installed by soldering or crimping Be sure to make good connections For detailed Powerpole connector installation tips see RIiGrunner support pages at http Awww westmountainradio com supportrr IMPORTANTI It is essential that assembly of the pairs is correct Follow the amateur radio standard used by the RIGrunner DO NOT PLUG IN without verifying that RED PLUS and BLACK MINUS is correct The far left connector is labeled DCIN with a 402. A basic explanation of 12 volt systems will aid in understanding this feature Equipment commonly referred to as 12 volt is actually a nominal 13 8 volts For example a lead acid battery is a nominal 12 6 volts when charged and not under load and approximately 14 0 volts under charge A quality 12 volt power supply will have its regulated output set to 13 8 volts Most radios are specified to require 13 8 volts 15 12 volt automobile or aircraft alternators have voltage regulation set between 13 5 and 14 3 volts West Mountain Radio 5 Operating Manual The RIGrunner provides an accurate and unambiguous display of voltage There are three LEDs red overvoltage green normal and yellow undervoltage The points at which the LEDs change are set accurately to 11 5 and 15 0 volts The selection of these points gives a reliable indication of proper and safe operation of your power supply battery or alternator A green or normal indication is all you need to look for An undervoltage indication shown by the yellow LED is less than 11 5 volts This should be safe for your radio but may cause improper operation Low voltage on a modern radio can cause a loss of phase lock and a frequency error This is a definite indication of a problem with the power source a bad connection an unregulated power supply a bad alternator or dying battery It is normal with most cars to have less than 11 5 volts when cranking the starter motor
3. DC to GO Battery Box w RIGrunner 4008 and Super PWRgate PG40S aN aire lt ADIO www westmountainradio com 1020 Spring City Drive Waukesha WI 53186 262 522 6503 sales westmountainradio com 2015 West Mountain Radio All rights reserved All trademarks are the property of their respective owners Thank you for choosing the West Mountain Radio DC to GO Battery Box w Rigrunner 4008 and Super PWRgate PG40S You will enjoy powering your equipment from a portable battery using Powerpole connectors The DC to GO gives you convenient portable power The case accepts Group Size 24 batteries providing up to 100 amp hours at 12 volts Eight devices may be plugged into the integrated RIGrunner 4008 power strip Each socket is fused for protection Any blown fuse will be illuminated Correct and low voltage indicators show battery status The battery may be charged via the power strip Contents e Battery Box with strap RIGrunner 4008 mounted directly to battery box Super PWRgate PG40S mounted directly to battery box e Powerpole Connection Cable e Battery Lead Cable 2ft 10 wire ring terminals to Powerpole e 12 pair pak of 30A Powerpole connectors and contacts DC to GO Operating Manual Safety Information A battery stores a large quantity of energy A short circuit will release this energy rapidly causing the wire to melt and perhaps catch on fire Also the battery could explode The fuse lo
4. MAX CURRENT 4 CREEN amp YELLOW LED gt Check for Switch to Float bad cell gt 0 1 MAX FLOAT CURRENT TIME West Mountain Radio 14 Operating Manual The four charging states are Trickle charge If the battery is below 10 volts then a low current of 50 ma is supplied This is a safe current if the battery has a dead cell But if the battery is good the voltage will slowly rise to above 10 volts and then the charger will switch to the bulk charge state Bulk Charge This is a high current state selected by the maximum current setting Fuse Jumper and controlled by the battery s voltage The charger will provide up to maximum current limited by the circuit the power supply voltage and the battery s impedance and voltage Peak Voltage This is often called the absorption state The battery is charged with the voltage limit elevated to 3 8 V or 14 2 V see below until the current has diminished to a tenth of the maximum setting At this current the charger will change to the float state Float This is the resting state of the charged battery often called the maintenance state The charger will supply sufficient current up to the maximum selected current to keep the battery at the float voltage of 13 5 V The states are switched as follows Turn on If the power supply is turned on and the battery had been discharged below 10 volts the charger will start in the
5. hours simultaneously Place the Power Analyzer in line with the power supply to measure its output Unplug the load from the Super PWRgate to measure the battery s charging current Plug the Power Analyzer into the Super PWRgate s output to measure either the power supply current if the supply is connected or the battery s output current if the supply is disconnected or is turned off Refer to the charging circuit description to verify the different states when measuring the charging current Voltages Manufacturers list the lowest recommended DC supply voltage range for the specific radio model Some radios are listed as 13 8 VDC 15 and others as 13 8 VDC 10 12 volt power supplies are regulated to provide 13 8 volts DC The Super PWRgate has a diode in series that has a voltage drop of 0 25 V for 50 ma to 0 30 V for 1 ampere and 0 50V at 40 amperes Under normal load the Super PWRgate output will be no less than13 5 volts Fully charged 12 volt batteries exhibit around 13 5 volts open circuit When supplying current the battery s internal resistance diminishes the voltage For instance a 70 A h battery will drop to 12 3 volts at 10 amperes at half discharge The Super PWRgate will give a drop of 0 3 volts at 1 ampere thereby providing 12 0 volts to the radio Additional voltage drops can easily occur due to the high current and the resistance in the wires the fuses and the connectors Therefore it is imperative to
6. keep all wires as short as possible as low of gauge as practical and as few connectors as possible Also use a large fuse on the battery 30 or 40 amp to keep its voltage drop low Use a voltmeter to check the voltage at the radio when running on battery power West Mountain Radio 13 Operating Manual Super PWRgate Charger The charging circuit is a four state high current battery charger The charging circuit which is always connected to the battery uses the power supply as the current source It charges the battery automatically by knowing the battery s voltage It also changes charging state if the power supply goes from off to on following a power outage and it also changes state if the battery voltage drops when supplying heavy current These conditions are interrelated to provide proper charging automatically The charger is a safe battery charger It supplies the rated current if the battery is heavily discharged Current drops in a smooth and progressively diminishing manner as the battery nears full charge Note that the charger is a feedback device and it cannot overcharge a 12 volt battery Also it will not charge a battery that has a dead cell The charging circuit has four selectable charging current settings 1A 4A 7A and 10A to be chosen appropriately for the battery s rating Typical Charging Curve lt 4 GREEN LED gt lt q GREEN amp RED LED gt
7. 0 Amperes Fuse in both sockets Use the following charging current for the listed lead acid battery ratings Use 1 ampere for batteries from 3 to 12 Ah Use 4 amperes for batteries from 13 to 32 Ah Use 7 amperes for batteries from 33 to 50 Ah Use 10 amperes for batteries from 51 Ah up West Mountain Radio 17 Operating Manual Advanced Charger Considerations Gelled Cells The battery charger uses the station power supply For ham radio operators this is usually a 13 8 volt supply Because of circuit components this limits the peak charge voltage to around 13 6 volts which is slightly less than a desired 13 8 volts for a gelled cell s peak This results in a slightly low absorption state The battery s charge therefore will be a few percent less than maximum available ampere hours To achieve optimum battery charging the power supply should be adjusted to 14 10 volts dc The charger will now permit the battery to reach a peak voltage of 13 8 volts during the peak voltage cycle The float state will remain at 13 5 Volts Note Always use a accurate digital display voltmeter to assure accurate readings AGM Cells The charger can also be configured for an AGM type sealed battery To do this precisely the power supply should be re adjusted to provide 14 50 volts In addition a jumper must be installed at J1 inside the Super PWRgate Take the top cover off The small blue jumper block should be lifted off the p
8. A normal indication with the green LED illustrates everything is good and you are between 11 5 and 15 0 volts don t worry about a thing Ared overvoltage indication with the red LED is a warning DISCONNECT OR TURN OFF YOUR POWER SUPPLY IMMEDIATELY It is possible to overheat or damage a radio or other equipment An overvoltage will sound an audible alert no need to watch the LEDs to signal a problem When running strictly on a 12 volt battery an overvoltage condition will not occur The RIGrunner s audible alert can be reconfigured for a low battery warning By removing the four cover screws and move the P14 jumper to the LO position Remember to move it back to HI when changing back operation from power supply or alternator Note Due to the characteristics of the comparator chip it is normal for the undervoltage LED to glow very dimly with a normal or overvoltage indication It is also normal for the LEDs to change intensity while stepping through 10 precision points In the event of a bad power source or power connection the yellow LED may flash or come on during transmit If this happens check the power source and connections It is also possible for RF from a transmitter to cause an electronically regulated power supply to lose regulation and cause an overvoltage alert during transmit The RIGrunner is extensively RF bypassed and should actually cure this problem If you do have an overvoltage condition during transmit
9. VE and BLACK is NEGATIVE Bring the Battery Lead cable out through the front of the battery box to the Super PWRgate PG40S Plug into the farthest right connector marked BAT Neatly fold the excess wire into the box Next Plug the Power Connection Cable into the middle connector on the PG40S marked OUT and plug the other end into the farthest left connector on the RIGrunner 4008 marked DCIN Make sure the top is oriented so that the large vent is facing the front Snap the top into place West Mountain Radio carries post to stud lug sets The positive lug matches the larger size battery post and has a 3 8 inch stud The negative lug matches the smaller size battery post and has a 5 16 inc stud Using the Strap The strap may be installed and used both to secure the battery box to the floor and to restrain the top cover It also provides the safety precaution in the event the battery explodes the plastic box with strap will likely prevent flying debris and acid Note that the strap is easily installed between the RIGrunner and the battery box RiGrunner 4008 There are some considerations to think about Please read these instructions carefully before setting up your RIGrunner Choosing a mounting location Pick a location that is close or central to most of your radios and accessories especially those that draw large amounts of current Locate your power source as close as possible to the RIGrunner Remember that
10. am shack a lead acid types battery is recommended because they offer the best price to power ratio Gelled cells and absorbed glass mat AGM batteries are sealed and are very safe Some of these have a tiny positive pressure vent Gelled cells are best to use with the Super PWRgate because the battery charging circuit comes configured properly and matches a 13 8 volt power supply If using AGM batteries it is suggested to slightly elevate the voltage for the power supply and add a jumper change inside the Super PWRgate It is not recommended to use other types of batteries such as starting deep cycle and marine batteries or automobile batteries For additional information on batteries visit this website www windsun com batteries battery_FAQ htm West Mountain Radio carries size 24 Gelled and AGM batteries West Mountain Radio 12 Operating Manual System Checkout When the power supply and battery are connected and the Super PWRgate is driving a radio a quick checkout procedure should be followed Run your radio and unplug the power supply The radio should operate without interruption now from the battery Plug the power supply back in and the radio will now be powered from the supply If you have an ammeter on the supply it will show current It is recommended to use and in line meter such the Power Analyzer sold by West Mountain Radio It measures volts amperes watts ampere hours and watt
11. amp fuse and is normally used to connect to the power supply but any output may be used as the input with an appropriate fuse Plug in your equipment starting with the highest power connections to the left and the lower power drain units to the right notice the supplied fuse ratings next to the connector chosen Typically 12 volt input amplifiers and 100 watt RF output transceivers should be first VHF radios next and smaller accessories last Multiple amplifiers and or transceivers may be connected to the RIlGrunner There is a 40 amp maximum that would be exceeded if trying to transmit all connected units at once Most radios and amplifiers draw less than 3 amps in receive but require many more amps in transmit Therefore the limiting factor is total current draw while transmitting To determine how many radios may be used to transmit at one time consult the radio manual for power West Mountain Radio 4 Operating Manual consumption specifications In the event that the total current goes over the 40 amp maximum a fuse will blow or make an undersized power supply unhappy The RlGrunner and any equipment plugged into the RIGrunner should go unharmed Using the proper fuses The RIGrunner comes supplied with a range of fuses installed This assortment should be suitable for most stations but can be changed easily Every RIGrunner output is safe up to 40 amps but the total allowable is also 40 amps A fuse MUST be in each po
12. cated near the battery terminal in the RIGrunner may help prevent these types of catastrophes Batteries The use of only SAFETY batteries is recommended such as gelled electrolyte and absorbed glass mat AGM types These batteries are sealed and contain no dangerous gases These types may be mounted in any position although vertical is preferred They are also 100 maintenance free Use of other types of batteries for portable use in the DC to GO is NOT recommended Automobile batteries and marine batteries may only be used if the installation is fixed where the battery box will not be turned over and is located outdoors or in a welll ventilated area West Mountain Radio carries high quality gelled electrolyte and AGM batteries They have posts and lugs with studs to match the ring terminals on the supply cable provided Anderson Power Products and Powerpole is a registered trademark of Anderson Power Products Inc West Mountain Radio 2 Operating Manual DC to GO battery box will fit Group Size 24 batteries with the following dimensions Length 10 7 8 in 276mm Width 6 3 4 in 171mm Height 9 7 8 in 251mm Connecting to the Battery The RED wire with the larger ring terminal is connected to the battery POSITIVE lug and securely fastened down with the nut The BLACK wire with the smaller ring terminal is connected to the battery NEGATIVE lug and securely fastened down with the nut Ensure that RED is POSITI
13. e for positive and BLACK wire for negative or common or ground Refer to the equipment manual if you have non standard equipment Plug this wire into the Super PWRgate terminal marked OUT If you are connecting the output to a power strip such as a RlGrunner it is recommended to use 10 wire 3 feet to 6 feet long At least one end will need Powerpole installed the other end can wire directly to the power strip or use connectors Note that West Mountain Radio carries 3 feet and 6 feet long extension cables 10 red and black insulated wire with Powerpole on both ends Plug this wire from the power strip or equipment into the Super PWRgate connector marked OUT output Confirm that the Powerpole are plugged together securely and that the wire is straight at the connection and is not under strain or bent over At this point check out the system operation with the power supply Turn on the power supply and turn on the radio or equipment The radio or equipment should properly work Connecting the Battery Anderson Powerpole are used for all Super PWRgate connections See the section Powerpole connector installation tips The battery wire should be heavy gauge and as short as possible recommend 10 wire 3 feet long In addition a fuse must be installed in the positive lead directly at the battery terminal Note any short in the battery wire connector or load could result in fire and battery explosion Wes
14. especially with a VHF high power amp it is due to inadequate RF filtering on the DC lead of the amplifier or poor RF immunity of the power supply regulator circuit West Mountain Radio 6 Operating Manual RIGrunner Accessories Order Sku Fuse Assortment Low Value 8pcs 58537 1085 3 1A 3 5A amp 2 10A Fuse Assortment High Value 8pcs 58537 1086 2 ea of 15A 20A 30A 40A Buss 10A ATC Circuit Breaker 58537 1087 Buss 15A ATC Circuit Breaker 58537 1088 Buss 20A ATC Circuit Breaker 58537 1089 Buss 25A ATC Circuit Breaker 58537 1090 Buss 30A ATC Circuit Breaker 58537 1091 Powerpole Extension Cable 3 ft 58531 1082 12 Red Black Wire w Powerpole ends Powerpole Extension Cable 6 ft 58531 1083 12 Red Black Wire w Powerpole ends Powerpole Extension Cable 10 ft 58531 1084 12 Red Black Wire w Powerpole ends 15A Powerpole Connector 12 Pair 58257 1093 30A Powerpole Connector 12 Pair 58257 1095 45A Powerpole Connector 12 Pair 58257 1099 Powerpole Retention Clips 12 Pack 58257 1092 PowerLock RIGrunner Retainer Kit 58512 1060 PWRcrimp Crimp Tool 58568 1049 To purchase or view other accessories available call or go online at www westmountainradio com shop West Mountain Radio 7 Operating Manual out BAT ON PK L I I r i West Mountain Radio PWRgate rail Introduction to Super PWRgate PG40S The Super PWRgate PG40S the hi
15. gh power OR Gate with a built in four stage battery charger It makes a true solid state UPS for the ham shack The Super PWRgate PG40S eliminates the danger of connecting a power supply directly across a battery which can damage many power supplies The PG40S also avoids introducing hum and RF interference caused by most lead acid battery chargers by using a standard power supply Furthermore most lead acid battery chargers are designed for flooded lead acid marine or automotive batteries and are inappropriate for charging sealed lead acid gel and AGM type batteries The PG40S will extend the life span of a sealed lead acid battery compared to using a flooded lead acid charger West Mountain Radio 8 Operating Manual The PG40S transfers 40 amperes at 12 volts DC in a continuous safe manner It connects a battery and a power supply to a load while electrically isolating both the battery and the supply from each other Whenever the power supply is on the supply feeds the load It also charges the battery with a high current four state safe battery charger Whenever the power supply is off the battery will feed the load If either the power supply or the battery is malfunctioning neither draws current from the other The switching is instantaneous A PG40S is very useful in the ham shack and even more useful in a repeater installation Communication equipment will remain operative during AC power blackouts and power supply fa
16. icates that the charger is fully active and will provide up to maximum current to the battery according to the battery s state Note that this LED does not measure nor indicate current flow only the charger s state ie fully active state and would charge a battery if it were connected Green ON and RED PK Indicates that the charger is in the peak voltage state PK and will provide up to maximum current to the battery As the current is diminishing the charger attempts to reach an elevated battery voltage When the current drops to one tenth the maximum current setting the state changes to float Green ON and Yellow FL Indicates that the charger is in the float state FL and will provide up to maximum current to the battery to maintain the battery at the float voltage of 13 5 volts A typical charging curve is shown in the figure Choosing and Setting the Maximum Charge Current The charger has three internal current sensing resistors that can be activated for determining the maximum current limit 40A fuses are used as the high current switch need a high current jumper wire The 40A fuse has the lowest resistance of the ATC fuses and closely approximates a true jumper Note that leaving the fuses out provides a charge current of 1 ampere To get different charging current values install the fuses as follows 1 Ampere No fuse 4 Amperes Fuse in left socket 7 Amperes Fuse in right socket 1
17. ilures Power supplies and batteries can be swapped out while equipment continues to be powered and without glitches Additionally the PG40S and a power supply may be used solely as a permanently installed battery charger This also may be configured to run a radio station directly from the battery See the article by W1ZR in QST December 2003 at www westmountainradio com Please read the following instructions BEFORE installing the PG40S Choosing a Mounting Location Pick a location that is close or central to the power supply battery as well as the load or 12V distribution panel Radios and many 12V devices draw large amounts of current All wires have resistance so it is good practice to keep them as short as possible and to use a larger gauge wire to minimize voltage drop The PG40S can be installed in any orientation It is recommend to use in a cool dry location and preferably well ventilated Do not tightly enclose the unit as the heat sink can become quite warm under maximum current At 40A continuous current it will rise about 40 degrees Fahrenheit over ambient temperature in free air If placed in direct sunlight it will absorb heat and get unnecessarily hot The Super PWRgate can be mounted using number 8 hardware in the two mounting holes West Mountain Radio 9 Operating Manual Connecting the power supply Use a regulated power supply that is between 13 8 volts and 15 volts Anderson Powe
18. in and re installed shorting out the two pins The charger will now permit the battery to reach a peak voltage of 14 2 volts during the peak voltage cycle The float state remains at 13 5 volts Note Always use a accurate digital display voltmeter to assure accurate readings Note that all major radio manufacturers specify that their radios will operate up to 15 Volts DC Therefore using the Super PWRgate at an elevated voltage of 14 5 volts is fine West Mountain Radio 18 Operating Manual Specifications Maximum Voltage Maximum Current Circuit Diodes Voltage Drop Charging Circuit Connectors Size Weight Mounting Holes 18 Volts DC 40 Amperes Diode OR Gate Two Schottky 80 Ampere 20 Volt 0 25 VDC Quiescent 0 50 VDC at 40 Amperes Charging regulator lC Field Effect Pass Transistor Schottky Diode Fuse switched for 1 4 7 or 10 Amperes 2 8 maximum Peak voltage limit 13 8 Gelled Cells 14 2 AGM 2 Peak voltage terminate point 1 10 max current Float Voltage 13 5 volts 2 Reference voltages are temperature compensated Anderson Powerpole 40A 5 25 x 3 90 x 1 65 in 13 4 x 9 9 x 4 2 cm 0 9 Ibs 0 4 kg Two 0 175 d at 4 875 in distance for 8 hardware West Mountain Radio 19 Operating Manual Powerpole Wiring Guide Powerpole Series Recommended Wire Contact Gauge 20 16 AWG 20 12 AWG 14 10 AWG Additional Resources for Anderson Power
19. or profit or any indirect special incidental or consequential damages even if West Mountain Radio has been advised of such damages Except as provided herein West Mountain Radio makes no express warranties and any implied warranties including fitness for a particular purpose are limited in duration to the stated duration provided herein www westmountainradio com West Mountain 1020 Spring City Drive Waukesha WI 53186 RAD j tel 262 522 6503 fax 262 522 6504
20. pole go to www andersonpower com Details and a video demonstration for using PWRcrimp Tool with Powerpole go to www westmountainradio com crimptool DC to GO Battery Box w RIGrunner 4008 and Super PWRgate PG40S Warranty DC to GO model is warranted against failure due to defects in workmanship or materials for one year after the date of purchase from West Mountain Radio Warranty does not cover damage caused by abuse accident misuse improper or abnormal usage failure to follow instructions improper installation alteration lightning or other incidence of excessive voltage or current If failure occurs within this period return the DC to GO model or accessory to West Mountain Radio at your shipping expense The device or accessory will be repaired or replaced at our option without charge and returned to you at our shipping expense Repaired or replaced items are warranted for the remainder of the original warranty period You will be charged for repair or replacement of the Super PWRgate PG40S or accessory made after the expiration of the warranty period West Mountain Radio shall have no liability or responsibility to customer or any other person or entity with respect to any liability loss or damage caused directly or indirectly by use or performance of the products or arising out of any breach of this warranty including but not limited to any damages resulting from inconvenience loss of time data property revenue
21. rpole are used for all Super PWRgate connections See the section Powerpole connector installation tips The power supply wire should be heavy gauge and as short as possible recommend 10 wire 3 feet to no longer than 6 feet long Most power supplies have 1 4 inch studs Note that West Mountain Radio carries 3 and 6 feet long power supply cables 10 red and black insulated wire with in ring terminals on one end and Powerpole on the other Be sure to connect the RED Powerpole connects to the RED wire and connect to the PLUS terminal on the supply Similarly make sure that the BLACK Powerpole connect to the BLACK wire and connect to the NEGATIVE terminal on the supply Check that the connections at the power supply are well tightened Plug this cable from the power supply into the Super PWRgate connector marked PS power supply Confirm that the Powerpole are plugged together securely and that the wire is straight at the connection point and is not under strain or bent over Super PWRgate PG40s Power Supply West Mountain Radio 10 Operating Manual Connecting the Load or Power Strip Anderson Powerpole are used for all Super PWRgate connections See the section Powerpole connector installation tips The load wire should be heavy gauge and as short as possible If connecting directly to a radio or other device you will need to install Powerpole on those cords Modern radios use RED wir
22. sition in use ANY ATTEMPT TO BYPASS OR SHORT ACROSS THE FUSES IS DANGEROUS AND VOIDS THE RIGRUNNER WARRANTY Since the maximum available automotive fuse is 40 amps the RlGrunner will be protected as long as any value ATC ATO fuse is installed Choose the correct fuse for your equipment Standard ATC ATO automotive blade fuses are used These fuses are available in 10 values ranging from 1 amp to 40 amps The DC input should have a fuse that is appropriate for the power supply rating If using a smaller power supply consider using a lower value fuse than the 40 amp value supplied Ideally all of the outlets should have a fuse that is the next higher value above the maximum current draw of the unit on that fuse If using a power cord with a fuse match that value or go one or two values higher Sizing each fuse for each unit is desirable but not absolutely necessary Having a higher value than the minimum will offer less protection for that unit too low a value and the fuse will blow out prematurely Note that each fuse position has a LED blown fuse indicator that will conveniently light up if an output fuse is blown There must be power to the RIGrunner and a load on the circuit that has the blown fuse for the blown fuse LED to light The voltage comparator and audible alert A feature of the RIGrunner 4012 and 4008 is the precision expanded scale voltage comparator display with audible alert The 4005 and 4004U models do not have this feature
23. t Mountain Radio 11 Operating Manual Large batteries have side post or threaded terminals Deep cycle marine AGM and others usually have 3 8 inch and 5 16 inch studs Therefore it is recommended to use a short 3 feet 10 wire Powerpole on one end an in line fuse 40 A max and ring terminals for the battery end West Mountain Radio carries a battery fuse kit wire and Powerpole Batteries Caution Handle batteries with knowledge and appropriate care Batteries have dangerous chemicals that can seep out Batteries can emit extremely explosive hydrogen gas that is explosive Batteries especially automotive and marine flooded lead acid must be used in a strong ventilated enclosure Sealed lead acid batteries are much safer but must be correctly handled with care NEVER make the last connection directly to a battery causing a spark that could cause the battery to explode sending debris and acid in all directions Batteries can get very hot when improperly charged or if a cell gets shorted Batteries will explode during charging or discharging for a variety of reasons Batteries are safe when handled properly Choose a 12 volt battery with an ampere hour rating according to your power needs If the batteries are placed indoors they must be sealed for safety reasons Again it is very important to place a fuse at the positive battery terminal This manual does not cover all the types of batteries but for use in the h
24. trickle charge state and then if the battery rises above 10 volts it changes into the bulk charge state If the voltage rises to above 12 volts then the peak voltage state is entered Then when the current has diminished to one tenth of the maximum selected current the float state is entered If the battery is charged to over 13 volts turning on the power supply will cause the charger to remain in the float state This turn on cycle occurs following a power outage West Mountain Radio 15 Operating Manual Discharging Battery If a load is placed on the battery and the charger had been in the float state and the battery voltage stays above 13 volts the charger will remain in the float state supplying up to full current If the battery voltage is discharged to less than 12 volts and the load is removed the charger will enter the peak voltage and eventually the float state as above If the radio station is connected directly to the battery and not through the Super PWRgate output then the battery will supply the load while the battery is being charged In fact the current will be shared between the load and the battery This method of powering a radio station was described by W1ZR in an article in QST Dec 2003 See the diagram below for aW1ZR configuration Transceiver Super PWRgate PG40s Power Supply Battery West Mountain Radio 16 Operating Manual LED Indicators Green ON Ind
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