@György-Farkas it was about 2h 30min, most of time it was idle. I consider to put there QI receiver coil for wireless charge. Actually the lack of hibernation or sleep mode could be potential problem in future.
@WereCatf so basically all of the 3.7V LiPo batteries found here can be used. Surely a low Ah model will last few but will charge faster than a bigger one. My concern is about the charging current available: if I use an high Ah model, my power dock will charge it without overheating?
It's not the capacity that determines the charging-speed, it's the charging-circuit that does. A 500mAh battery will charge at the same speed as a 2000mAh one, so it'll just simply take longer for the bigger battery to get charged full. That is to say, you could safely slap a 20,000mAh battery on it, if you wanted to :smirk:
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