How many cycles do I need for this battery?

8/27/19 screenshots

Since the batteries I have for my S6 Edge+ are either near the end of their life or gave me trouble (~59%/2nd resisting charging) I had to order a battery for this phone. Since it’s more of a permanent side project, I ended up ordering one from eBay since I am by no means picky about what goes into the phone as long as it’s safe.

However, my eBay battery may be showing the early red flags of being a standard Edge battery (sub-3000mAh) and the capacity reported on the BMS is fake. The 8/27/19 screenshots show what I got with the first 0-100 charge to see if this is a true 3000mAh (yes, it matters on the +) or if the BMS is faking the data. So far I don’t like what I see with my first recal charge.

The reason I need a true 3000 battery for this phone is if I use a 2700mAh (Standard Edge battery) is you end up losing a lot of runtime since the large screen needs the extra 300mAh.

How many charges should I subject it to before condemning it for being a fake capacity (More then likely based on my first full cycle) and try the unknown battery? Since this phone is basically a permanent side project due to the screen being in poor shape as I pulled it off of a Edge+ with multiple spiderweb cracks with 2 AMOLED dead spots from a damaged board phone (same carrier; what a find) due to the cost of a screen for such an old phone (I can get a cracked S8/9 for the price of some of these!), I may not try a 2nd new battery if I can get battery #2 going and it’s in good shape. I am running the battery down again and see if this resolves or persists

8/28/19

2nd 0-100 charge