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Swollen battery

Old 04-17-2020, 11:46 AM
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timot67
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Default Swollen battery

Hello

After a good year I decided to use my little rc helicopter again. Since I lost the given cable I used an old nokia charger with the same voltage ratings as as a pc port and a maximum current rating of 100mA. Now after charging a while and testing the chopper I noticed it didn't have the power to lift itself up high so I charged it again for maybe 2 hours. After 2 hours the same thing happened , no power.

Now I decided to check under the hood for the battery and noticed that it was pretty swollen or think it is swollen. Its a small 150mAh 3.7 cell . Is this battery toast and if it is , is it because the battery was completly drained for more than a year or because of the use of the nokia charger?

Thanks in advance

Timothy
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