Ameec Shenzhen Technology Co.,Ltd, with professional breathing machine battery factory, is a best China breathing machine battery, 12v battery, usb battery pack, rechargeable battery manufacturers and suppliers. We are always at your service. Breathing machine battery Type: Pack Chemistry: Li-ion Nominal Voltage (V): 7.4v Capacity (mAh): 15000 Max Continuous Discharge Current: 15A Max Discharge Current: 15A Battery Charging Current: 5AWeight: 3kg Dimensions: 30*15*125px Avg. Temperature Ranges for Charging: <55℃Discharging: 45℃Storage: 25±5℃PCB/Pack Protection(for single cell voltages): Over Charge Cutoff Voltage: 4.35 ± 0.025V We have two types of battery cell for the pack: 18650 lithium battery andlithiumpolymer battery. As for the raw material of the battery cell, we canuse NCM or LiFePO4 according to customer’s specification. Comparedto NCM, LiFePO4 has longer cycle life and is more safer, but of course the cost would be higher.We will prepare detail proposals for our customeraccording to their specification.