GMR2 and GMR2 PLUS Handheld Long-Lasting XL Battery has a high capacity of 3200mAh, providing more than double the life of a regular 1400 mAh battery. Also has a USB charging port, making it an ideal spare or backup for weekend trail rides where extended battery life is necessary. This rechargeable BAT-GMR2-XL comes with a belt clip for your convenience. USB-BAT-RH for charging on the go is sold separately. Battery specifics are: Capacity - 3200 mAh, Voltage - 7.4V, Type - Lithium-Ion, and it can be charged via USB cable (sold separately) or through a standard charging cradle.