About this item: -Instant second start, start a large displacement car. -Built-in 99800mAh large capacity, low-function sleep scheme, can still maintain power for long-term use. -With flashlight function, three modes are optional, constant light mode, high strobe mode, and SOS rescue mode. -Dual USB interface, supports fast charging of mobile phones. -Upgrade protection, anti-reverse protection, short circuit protection, overcharge protection, constant current protection, regulated voltage protection, over discharge protection, temperature protection, magnetic field protection. -Strong adaptability, explosion-proof, high temperature resistance 80℃, low temperature resistance -40℃. Specification: .