• B2 is a replaceable battery pack specially designed for BOBOVR battery straps. The battery pack can be hot-swapped through magnetic attraction
• The weight is only 140g, which can better balance the front and back weight of the head, making it more comfortable to wear
• The 5200mAh capacity allows Quest2 to achieve twice the battery life, and can be quickly replaced by multiple battery packs to achieve unlimited battery life
• The maximum charging and discharging power of 15W can keep Quest2 running while maintaining power. When B2 is exhausted, it can be fully charged with 80% power in 2 hours
• It has 4 power indicator lights, a halo working light, and multiple redundant safety designs

Specifications:

• Working voltage: DC 5V±0.3V 　
• Working current: input and output maximum 3A 　
• Battery type: Lithium-ion battery 　
• Battery capacity: 3.7V/5200mAh, 19.24Wh 　
• Rated capacity: 5V/1.5A, 3200mAh 　
• 0-100% charging time: about 3 hours 　
• 20-80% charging time: about 2 hours 　
• Indicator light: circular light, charging or discharging 　
• Power light: current battery power 　
• Button: single click: check the battery power, double click: stop output 　
• Automatic shutdown: when there is no power output, it will automatically shut down within 40 seconds
• Safety protection: overcharge protection, over-discharge protection, over current protection, short circuit protection, high and low-temperature protection 　
• Working temperature: 0℃-40℃