New model mobile phone battery for sony EP500 Specification : Double IC PCB and PTC, more effective protection for overcurrent, overload, overdischarging, and short circuit protection inside Gilded connector (gold finger) with 5U owns better conduction Cell:Lithium_ion battery Safe and stable performance Limited charge voltage:4.2V Li-ion battery, 3.7V, 770mAh Work temperature:50C 400C: Weight: 30g Chemistry: advanced lithium polymer based Output current: ≤ 700mA maximum Input current: ≤ 1000mA maximum Charging time: charge with adapter (5.3V/800mA) 4 to 5 hours Charge with computer USB port 5 to 8 hours (based on the actually current ) Protect function: short circuit, over current, over charging, and over discharging Cycle life: ≥600 times For future information Aquanlity ; enough capacity , best price;prompt deliver and good after-sale services;Quality warranty for 12 months payment by T/T or west union shipment by DHL , EMS , UPS, Fedex About us : we are one of the leading exporter professional and senior electronic products supplier. especially on all kinds laptop parts and mobile parts, such as mobile battery , case , speaker , laptop power adapter and atc….. which have reputation for many years business experience , we sure that you will quite satisfied with our serviceing and excellence quality and compatible price of our goods . We sincerely expect to be business partner as our friendship ! Formore information about our products , pls free to contact us!