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Old 09-18-2012, 10:13 PM   #1
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Question life battery charging info

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I have a 2cell 6.6 volt 1800 amp life battery i would like to now at what volt can i take that battery down to so then i can charge it
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Old 09-18-2012, 10:35 PM   #2
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Re: life battery charging info

From a review I found for Hobbico Life packs

LiFeSource Capacity Testing
I began tests with a charge to capacity. (Use the LiFe setting on your charger. You will damage this pack if you use a LiPo or LiIon voltage charge termination as those cells are charged to a higher voltage.) The instructions recommend the use of CC/CV (constant current/constant voltage) charging technique, just like one would charge a receiver pack or the transmitter.

The Hobbico LiFeSource pack only took a few minutes to top off and reach full voltage. After full charge, I discharged the pack to 5 volts using the discharge feature on my charger. This was the minimum discharge voltage recommended by the instructions. At 5 volt termination the pack had drawn out about 1050mA according to my charger.

The pack then took about 1122mA to reach charge completion. Please note that charging is not 100% efficient, and some losses were involved, but we still get a good idea of that the pack is accurate on capacity and was not underrated.

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Old 09-22-2012, 04:28 AM   #3
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Re: life battery charging info

You don't need to take it down to anything. Use a proper charger with life setting or A123 and charge it. They have no memory problems so the only reason to cycle is to know what capacity/condition they are in.
When you do run 6.6V don't run them down below 2.5. I quit when they hit 3 or below.
Charge up after flying(as they don't lose anything significant) or charge just before but don't discharge.
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