new car jump starter power bank 20000mah car booster emergency battery charger 12v starting device 400a/600a car starter battery

large-capacity batteries, dual usb charging, do anti-reverse insertion interface, low-temperature start, small and portable, multiple protection, emergencys lighting using high-gloss technology, small size, and lightweight, similar products are smaller in size and lighter in weight 12v car emergencys start-up high rate battery can easily start the car, emergencys start power supply, quickly solve troubles not afraid of severe cold, high-performance polymer battery core resists -20 ° cold to 60 ° c high temperature to ensure that the battery is turned off and starts normally it can be used as a power bank, highlight emergencys lighting, always on, flashing, sos, it is recommended to use these functions less.syi