Test Pulsar 2
Contents
1. cooling cut outs which makes it more difficult to use open air or at the beginning a little bit difficult usage Pulsar 2 Is a really great device which can be used not only by the modelers I ve used it many times to charge other than RC packs like single cells for my digital camera I ve invented a special accessory to do that Pic 19 but is recommended to not exceed 1A of current when using that I ve been experimenting with unusual battery packs like video camera pack it required some combinations Very valuable feature is possibility of ae T Eiprog 3 Krymaici rr GOLDEN EURO m hi Medail l phi T as e Pic 20 firmware upgrade However to do that Pulsar 2 has to be send to manufacturer Additional recommendation can be fact that this device has been rewarded with many prestigious awards like Golden Euro in the category of Product with the future 2006 Pic 20 and have conquested Western markets where competition is much stronger than on domestic ground Text and pictures MAREK SZULEN2. Li Ta 2 4V Discharging will be stopped after battery voltage drops to the threshold value In the Auto mode current will be decreased by 1 4 each time voltage drops to threshold value Entire process will be finished when discharging current drops to 200mA Reverse is a very interesting function Pic 12 Pic 15 in discharging mode Energy from discharged battery is directed to the car battery powering Pulsar 2 of course Reverse has to be switched off when mains power supply is used At the same time car battery is protected against overcharging when using Reverse Another very essential and useful tool is Format Regeneration Format is a loop of few cycles 1 to 8 of discharge charge processes Discharging is done automatically until threshold voltage proper for each type of cell is reached Thanks to that we don t have to watch on new packs to discharge them fully and then fully charge etc Pulsar 2 will do that for us Regeneration is a special mode for formatting used battery backs It can repair bad battery pack balancing etc You ll find it only in Pulsar 2 The last tool of Pulsar2 is Test It lets you measure of internal resistance of the battery pack or single cells Test is performed in 3 stages precise voltage measuring measuring of voltage under load of adjusted current for 10s measuring of internal resistance of the battery pack Measuring of internal resistance has
3. Manganoxid tadiran cells charging voltage can be adjusted down ab 0 2V with 10mV steps battery s internal resistance measuring Ri for comparison purposes up to 4A of control current Pic 2 Pic 3 Pic 8 Pic 9 Pic 11 cells format up to 4A with user switchable Regeneration function Car s battery overcharging protection when Reverse function is used Too low car s battery voltage threshold adjusted between 10 and 11 5V wrong polarity protection external cooling fan socket is short circuit protected LCD backlight internal cooling fan with smooth speed control Pulsar can work with many battery types like Ni Cd Ni MH Li lon Li Pol Li Ta Pb bar RAM at the moment this review was written I ve got info from Elprog that Li FePO4 support was added Just after charger is switched on you can set general parameters using M button Pic 5 like sound alert Tmax controlling of max temperature of the battery T on max battery temperature for start of charging 80 45 C charger will wait for battery cool down to adjusted temp T off stop charging temperature 50 65 C and V off power supply voltage below which charging will be stopped 10 11 5V E button starts a work modes buttons are used to select one of eight program memories freely adjustable or one of two special programs Format Regeneration There s also
4. possible display of last eight processes PIC 6 User manual At first glance it looks bit complicated because so many features are controlled by only 4 buttons However after reading of 12 page manual you ll be able to freely use of all options and parameters In short Choose what you want to do M button how you want to do it E button and change values using buttons The manual is divided according to charger s functions charging discharging etc There are diagrams describing all functions and possible parameters There s a nice surprise at the end of this tiny book sample step by step description of programming process How does it work Let s get to the practice There are few tools available for the user like charging Ni Xx charging Li Xx Li Ta Pb RAM discharging discharging and charging format with regeneration function cells test Ni Xx charging can be done in Delta peak Inflex Reflex modes Although you ll find Delta peak mode in almost all chargers on the market you ll not find the last two Reflex and Inflex They re not so frequently found in chargers the second one probably isn t used anywhere else at all Inflex charging is a fast charging mode however there s no possibility of overcharging as it exist in normal AP mode Charging will be stopped at the point of biggest voltage increment just before battery pack is fully charged It avoids too high batt
5. Pulsar 2 multipurpose charger Test 9 2006 RC Przeglad Modelarski On the beginning there were nickel and cadmium After that NIMH and other types became real Today a lot of many battery types exist on the market How to charge them For most home applications any ordinary charger can be used What about so specialized and demanding applications like RC modeling The choice isn t easy To meet modeler s needs many manufacturers have created their multi purpose devices Mostly these were from the Western countries Not so long time ago a few Polish manufacturers introduced their chargers One of them is Pulsar 2 manufactured by Elprog Company from Rzeszow Company founder and chargers designer is Stawomir Krymski After few emails and phone calls I ve got Pulsar 2 in my hands need to say that I ve Pulsar 1 which like very much since few years This made me more curious what Pulsar 2 will show What s inside Pulsar 2 charger RS 232 cable for PC connection printed user manual CD with software and colorful multilanguage manuals temperature sensor with neodymium magnet to make installation on the pack easier First look on Pulsar 2 and hey come on I ve had to receive Pulsar 2 not Pulsar 1 Luckily it was just an illusion e rice Pic 1 There s a sticker saying version 2 Except that detail both Pulsar s are identical Pic 1 After careful inspectio
6. ery warming In Reflex mode there s a short discharging balancing impulse added It helps to avoid so called memory effect you can say after manual Reflex always gives a profits Here s how the sample charging process looks like Choose charging mode Pic 7 cell type Pic 8 switch Inflex mode on Pic 9 add Reflex mode Pic 10 as manual suggests set Delta to low Pic 11 and charging current Pic 12 Now connect the battery adjust cells number if needed Pic 13 and start the charging Of course you don t need to do that every time you want to charge the same cells type or with the same parameters Next time you ll just select that program with all previous settings and connect the battery During the charging process following information are displayed C charging number of cells charging current actual charging voltage raise drop of voltage an arrow power supply voltage battery temperature Pic 14 and process time and energy received by battery Pic 15 For the remaining cell types Li Xx Pb RAM etc we can choose following model Fast Reflex V end The Fast mode is a pulse charge mode which makes charging time over two times shorter V end mode let the user set the final voltage to which battery has to be charged Discharging let s you discharge cells to their threshold voltage which is predefined for each type of cell Ni Xx 0 9V Pb 1 8V RAM 1V Li lon 2 7V Li Pol 3V
7. n I ve found few other differences like different cover finish smoother edges thicker cables and little bit different clamps with small cutout in the front making them easier to put on the power supply Pulsar 2 isn t a large device It measures 130x120x60mm 5 1x4 7x2 3 inch and weights 890g ab 2 lbs It makes it easier to put into modeler s tool box Top cover contains 2 row 16 position LCD display with enlightens 4 buttons below and battery connection socket on the right On the left side an RS232 cooling fan and temperature sensor sockets are installed Pic 2 On the right side Pic 3 you ll find a clean laser cut internal fan exit Inside of charger looks very professional too Pic 4 Clean components placement large heat sink big step up step down voltage converter coil What it can do It can do a lot A list of features is very impressive 1 to 32 Ni Cd Ni MH cells 1 to 12 Li xxx cells power supply voltage 10 16V DC min 30Ah car battery 7OAh recommended or mains power supply 14V with min 5A recommended 30A max charging current 9 9A max power 250W max discharging current 9 9A up to 250W when Reverse Pic 4 mode used return of energy to the car battery Reflex mode for charging Inflex mode charging will be interrupted before battery will be overcharged Fast mode for Li lon Li Pol and Pb up to 9 9A for Pb RAM Li lon Li Pol and Li
8. to be meant as a comparison measuring of different packs Measuring gas to be done using the same cord and current has to be set to close of 1C where Cis a capacity of a battery pack In each mode charger is waiting for confirmation of the number of cells to correct automatically recognized number of cells After that Pulsar starts the program In the case of charging Pulsar doesn t use max adjusted current but is increasing it slowly in period of one minute user can skip slow start by pressing Another useful function is forced start It let s to charge battery packs in the transmitters where input is protected by diode like Graupner or Hitec so user don t need to remove pack each time it s being charged In this mode Reflex is switched off and max recommended according to the manual current is 1 2A which is caused by wire thickness in these packs Software The CD mentioned on earlier contains PCGraph software used for visualization and managing of processes results It can clearly show graphs of voltage current temperature voltage increase in mV min Pic 16 18 For comparison you can put few graphs on the screen together In addition results can be shown on a column graphs You can change display mode to show single cell or full pack result Graphs can be freely scaled Summary After few months using Pulsar 2 can honesily say that except few small details like non protected
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