... -24-C150 for laptop and all 24V devices. External battery pack 24V battery OW-24-C150 for laptop Specification:Model No.OW-24 ... Treatment Device:Industrial Computer,X-ray Machine,etc.Feature:1. High capacity, portable, backup,universal,convenient to carry.2. Various circuit ... of item,such as protection from overcharge,overdischarge and heat3.High efficiency and low self-discharge rate 5% per mouth4. ...