1.High Capacity and Stable Discharge Voltage 2.Light weight, small size and high performance 3.Small internal resistance 4.Outstanding Discharge properties and Storage Capacity 5.Pollution free, long cycle life 6.No memory effect 7.Existing stock for short delivery time. 8.Low price, high quality 9.OEM orders are available Longer service life. its service life can up to 10 years, lead-acid's service life only 3 years. * Lightweight. its weight is only 1/3 the weight of lead acid batteries. We are LIFEPO4 battery manufacturer! We are in this Battery Business over 10 years! We can do OED/ service! Support BT,RS485 ETC.. function..syi