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Old 02-05-2004 | 08:37 PM
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RCXPLANES
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From: Central Point, OR
Default RE: 3DX!

Mc17,
Thanks, I found that one and I don't have any intention of using anything but 3 Cell. I have the Kokam Lipo 402 coming, it is just not here yet. I have a lot of electronics components here and I am going through the calculations to see if I have what I need to build a simplified version for 3 cell only without all of the switches 1 through 8 until the 402 shows. I ran the battery down to 3.1 V per cell or 9.3 V and don't want to leave it like that for too long. Its been 24 hours now and I am a bit concerned.

I have read a lot of frightening accounts of miss charging and also a lot of technical data on charging the LiPos. Including the white paper on the FMA site. I don't think there is any magic in the charging or voltage control circuitry as long as you don't charge over 1C and 4.235 V per cell. To simplify I could use a lower C, say the 985 ma that the paralell bridge does with all switches on and keep it at or below 4.2V per cell. I am only going to build it if I either have everything here tonight or the 402 doesn't show tommorrow.