Just pass on this tidbit. I have two batteries that i switch out when one gets at/below 20%. Apparently one time on switching (note the battery doesn't pop out easily) the batteries, I accidently moved the SD card ascue. This resulted in extreme battery drain of 50%/hour, and an EXTREMELY HOT battery. Everything worked but the battery drain caused a lot of heat, even more than normal when using GPS apps. SO, be careful when removing/addng the battery not to move the sd card.
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