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2nd Bricked Battery - Help!
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<blockquote data-quote="mimixtz" data-source="post: 34685" data-attributes="member: 7144"><p>Until now there was no need for that. They are "smart", if they were too warm they wouldn't allow spark to take off or charger to charge them. At least that's what manuals are saying.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite12" alt="o_O" title="Er... what? o_O" loading="lazy" data-shortname="o_O" /></p><p>Yesterday evening I was playing with app and Spark was connected all the time, I was spinning motors (props were not installed) and similar. After 30 minutes app was showing battery temp. 43 degrees Celsius, Spark and battery were quite warm when touched. I inserted the battery in charger and chargin started as usual - after few seconds.</p><p>It shouldn't be a problem up to 50 degrees Celsius. My other lipos ( cheap Zippys from Hobbyking) for my other RC stuff are usually much more warm and there is never a problem. Besides that, charger is charging them with app. 2 Amps and since Spark batteries are around 1,5 Ah, that means that charging current is a little above 1C. That's really low, ANY lipo wthstands 1C charging despite being on 43 degrees Celsius.</p><p>What I usually do before store Spark batteries is to charge them between 3,7-3,9 Volts per cell. That is suitable storage Voltage for any lipo - even LiHV like Spark's batteries are.</p></blockquote><p></p>
[QUOTE="mimixtz, post: 34685, member: 7144"] Until now there was no need for that. They are "smart", if they were too warm they wouldn't allow spark to take off or charger to charge them. At least that's what manuals are saying.o_O Yesterday evening I was playing with app and Spark was connected all the time, I was spinning motors (props were not installed) and similar. After 30 minutes app was showing battery temp. 43 degrees Celsius, Spark and battery were quite warm when touched. I inserted the battery in charger and chargin started as usual - after few seconds. It shouldn't be a problem up to 50 degrees Celsius. My other lipos ( cheap Zippys from Hobbyking) for my other RC stuff are usually much more warm and there is never a problem. Besides that, charger is charging them with app. 2 Amps and since Spark batteries are around 1,5 Ah, that means that charging current is a little above 1C. That's really low, ANY lipo wthstands 1C charging despite being on 43 degrees Celsius. What I usually do before store Spark batteries is to charge them between 3,7-3,9 Volts per cell. That is suitable storage Voltage for any lipo - even LiHV like Spark's batteries are. [/QUOTE]
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2nd Bricked Battery - Help!