Synergy Tech Support
Synergy Electric Helicopters => Synergy E7SE => Topic started by: Chris Phillips on July 23, 2017, 05:44:26 PM
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I have been flying my E7SE for several seasons now with no issues - a blast to fly. Last weekend, I lost a cell in the battery back. The helicopter obviously lost power (which was my clue to land), and I found one of the cells in the rear pack was at 0.12V. I chalked it up to bad luck, and accepted that the pack had close to 200 flights. I replaced the rear pack with a battery of like brand, size, and age. Today, I lost a cell in the front pack! Is this a total coincidence, or is there something going on? I don't really want to lose another pack! If you have any suggestions, please let me know.
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I'd be looking at the charger. Make sure it's balancing properly.
Probably a coincidence but still.
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What Chris said.. but in addition.. others may disagree.. but I kind of look at 12s as one pack.. if one cell in either goes.. and they r both old.. I'd replace them all and use the good 6s in something else as a single pack. Integrating an old pack with a new one just messes with my head... may just be me.. I have no proof to back it...
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Thanks for the replies guys. I will look at my charger (I-charger 406) more closely. There have been at least 15 successful charges in between the "dropped" cell incidences.