Sonim BAT-04900-01S High Capacity, 4900mAh Lithium ion Battery for The XP8

OEM. Great. Just what I needed.

OEM replacement... exactly what I needed! Have used through several charge cycles. Good battery life.

Each battery lasts approximately 2 1/2 days. Very good.

I bought this as a spare battery for my Sonim XP8. With the stock battery out of the phone, I cannot tell the two apart. Perfect for my needs.

It was good.

Received OEM sonim battery. Works significantly better than my old battery.

Had a problem with my phone, suspected the battery first, bought a new one. Didn't fix the problem. Took it to AT&T. Should have done that first. Phone was toast. They said the battery was prime; no problem with it. Now I have a good standby battery. Shipping was fast.