Kaisiking Professional Battery Tester Battery Activation Charge Board, Phone Battery Repair Circuit Board with Power Current Cable Compatible for iPhone X 8 7 Plus 6 Plus 6S, iPad, Samsung, Oppo etc.

I made a mistake buying a cheap iphone screen and that drained a new iphone battery so low that it wouldn't charge through the iphone. That same iphone battery was sitting drained for months as well. With this tool, in 10-15 mins it got my iphone battery working normally again! $20 is way better than grabbing another battery for $60.

This is a super convenient product if you have batteries that you want to test. I've been tinkering with phones lately, and this allows me to charge and test the batteries of the phones. Very convenient to have!

I didn't get to use the tool since I bought it and after 4 month I opened it to find nothing work even iphone connectors

I already owned the first revision of this battery tester which had connections for the iPhone 4 to the iPhone 7 Plus, bur purchased this version to work on an iPhone X. This battery tester performs exactly as well as the old one did, doing its one job very well: reviving "dead" batteries. This device has helped me repair many iPads and iPhones whose owners thought their device was completely dead. But this amazing device brings their "dead" batteries back to life! Not included in this package are the extension cables with battery terminals for the iPad 2, iPad 3, iPad 4, iPad Air 1 & 2, or the iPad Mini. Would highly recommend purchasing if you work on Apple mobile devices frequently.

Works great. Ptetty easy to use. If you need better instructions just look up a couple of videos on YouTube.

Seems like a good tool, but the main problem is that the only instruction for using it and understanding how it works is written in non readable chinglish... it’s almost like the tried to use google translate to write the instructions.. I’d raise a star or two if they would find an actual native English speaker friend to translate..Basically the tool shows you current battery voltage and charge current and by looking at that you can tell if the battery will take a charge... There are some ununderstandable comments about using a button on the board to activate the batter, although it really isn’t clear when to use it and for how long....

It does what it is invented to do. All good. Great product for a technician working with Samsung and Apple boards and batteries.

Got this to pre-charge batteries for my repair shop. Charges faster than using a device, includes all the necessary cable, and has some nice features. I really liked that it offers over charge protection too.