My device came with this type of battery 'INR18650-25R li-battery 2500mAh 22A' I don't really know what any of these numbers or letters mean, can somebody tell me what type of battery
Test of Samsung INR18650-25S 2500mAh (Purple)
ICR18650-22P Datasheet PDF - Datasheet4U.com
Samsung INR1865029E 2900mAh (Blue)
INR 18650-25R Samsung - Datasheet PDF & Technical Specs