2pcs FX-HP-7224 +2pcs PL-7115 Using high power li-ion battery for electronic vehicle, working current high The battery working better in cold weather, power 60% available under -30℃, much efficient than normal li-ion battery. Li-ion battery, optimal energy and volume ratio Working current up to 40A max, portable power solution for high power lighting and film gears. Protection chips for high power battery; Intelligent PCB design for over-heat, over-charge, over-discharge, and over-current protection. Chargeable li-ion battery, no memory effect Working temperature: -30°C~+55°C We offer customize service for different capacity and voltage. Different DC output can be customized according to customer’s need. 730Wh,1250wh higher capacity battery can be customized. Max current 40A for each 28V output Two 28V outputs can work at same time Fit for 100W /200W /400W and above high power LED lights, film lights and 15V/28V gears. Trustworthy professional factory, 20 years experience of manufacturing li-ion battery in broadcast industry. Own-design inside circuit board,quality controllable. Reliable cooperator of you!