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Battman 6B-50W LiPo charger-balancer in action

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Uploaded on Feb 14, 2010

I experimented with Battman B6-50W charger-balancer to see how it manage in LiPo charging process with balancing circuit connected.. 6s LiPo pack (6x18650) was measured during and after balanced charging. Parallel with cells was connected Chargery BM6 cell monitor (accuracy +/-0,005V) Starting voltage was 3,83V each cell (so called storage voltage) and starting current was 2A. Input voltage was 12V.

During CC (constant current) phase from 2A to 0,5A cell monitor measured sometimes that max voltage is 4,231V-4,235V per cell. Good result - as max 4,235V is under critical allowed voltage.
In CV (constant voltage) phase from 0,3A to 0,1A cell monitor measured 4,195V-4,205V. Good result no overchargering.

After charging results:
Battman B6-50W numbers on screen
25,1V / 4,20 / 4,19 / 4,20 / 4,19 / 4,20 / 4, 19

Chargery BM6 cell monitor numbers:
25,11V / 4,193 / 4, 179 / 4, 185 / 4,173 / 4, 187 / 4, 187
Real disbalance 0,02V and no overcharge. Good result.

During charging difference in total voltage was 0,1 V. Good result, no need to calibrate with hidden menu.
During charging the Battman case max temperature was 42deg C and fan worked all the time. Temperature was measured with connected temperature probe (not included ).

Good and cheap charger for beginning. It will not destroy your LiPo batteries.

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