multifrag
100 W
I've already tried aliexpress. Got a battery close to required size, but Wh/l is lower than the battery it was suppose to replace. Right now my device uses ''653850 samsung phone cell'' from 2012. It has 5Wh and 381.7Wh/l. The battery I received from aliexpress was suppose to be 8.9Wh and 555Wh/l, but ended up at 5.34Wh and 333.5wh/l... The size I'm looking for is no bigger than 8.5x42x57. The popular 804050 is pretty much what I received... Do you know any reputable sources for high density pouch cells? For comparison NCR18650GA is 693wh/l. Phone batteries have similar density to GA cell too. I genuinely thought that 555Wh/l wasn't too much to ask from China manufacturers, but data says otherwise...