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#1
03-02-2016
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Help Charging LiFePo4 Battery
Hi All
I have this battery  its for my Futaba 4GRS transmitter. I have a Dynamite Passport 100w charger, that will charge LiFePo4 (LiFe) batteries. It asks what the charge rate and end cell voltage should be, but I am not sure what they should be. The hobbyking website says: Capacity(mAh) 2100 Config (s) 2 Discharge (c) 20 Weight (g) 103 Max Charge Rate (C) 5 So charge rate I guess is 2.1A x 5 so around 10A but I'm happy to charge at a lower rate say 5A. However what should the end cell voltage be? Sorry if I sound dull, its a bit new to me and this is the only LiFe battery I have! Cheers Graham Last edited by Shuntfield; 03-02-2016 at 04:25 PM. 
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#2
03-02-2016
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I am a bit surprised that the battery can be charged at upto 5c...!
I would stick to 1c....I.e. 2.1amps. As for end voltage, that's not a question chargers normally ask. However, Life batteries are 3.3v per cell so yours is 6.6v. I would be inclined to set max voltage at that and see what happens. Having said that, my Life batteries peak at about 7.2v.
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Team Associated B6 Team Associated B5m Centro C4.2 Team Associated B4.2 RC10 Worlds Last edited by Aire valley; 03-02-2016 at 05:05 PM. Reason: Amending error
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#3
03-02-2016
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Thanks Aire valley
Yeah, I think I agree with you on the 1C/2C. It says 2S/7.2v default, however it then says "End Cell Volt 3.6v" which is amendable, I guess it knows what it should be? Like you say 7.2v still a little confused!  Graham
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#4
03-02-2016
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The end cell volt of 3.6 is, of course, per cell.....so a 2 cell battery would be 7.2 v as I suggested. Just make sure you set charger up for 2 cell and you will be fine.
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Team Associated B6 Team Associated B5m Centro C4.2 Team Associated B4.2 RC10 Worlds
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Linear Mode
