Specification:Voltage: 7.4 V; Type: Li-ion; Capacity: 2250mAh / 16.65 Wh; Size: 112.50 x 52.00 x 28.50mm
Quality certification: ROSH, CE, UL triple certification, no memory effect, overcharge, over discharge, overheating, over current, short circuit protection
If the battery life of your wireless device is significantly reduced, you should replace the battery