USB CHARGING DESIGN: Unique newest usb charge design,no need charger and adapter,easy to charge with usb cable, just simply plug into USB ports DITCH LEAD ACID BATTERY: Comparing with SLA batteries, this rechargeable LiFePO4 battery Has huge advantages such as 2000+ cycles for longer use,much better safety,no memory effect,no pullution,lighter weight BATTERY WITH BMS: Good safety performance, built-in BMS protection to prevent overcharge, Over-discharge, Over-current and short circuit, and very low self-discharge rate REAL CAPACITY 6AH: Real high capacity 6ah with 2000+ cycles,more durable and longer battery life, battery size:(L x W x H): 2.71 x 1.77 x 3.97 inches,weight:0.6 lb WIDELY APPLICATION: Widely uses in Emergency Light, Deer Feeder, Exit Sign, Fire & Security Systems, Lantern, Power wheels, Electronics and more Upgraded usb charge design for fitinoch rechargeable 6v 6ah LiFePO4 batteries,much better charging solution can make it more convenient for User experience.you can charge the battery any time any where.