Product Code: 04877 Replacement lithium-ion battery for use with the Air-Fed PAPR Auto-Darkening Welding Helmet (Stock No. 02518). 1 x Battery for use with Welding Helmet - Stock No. 02518 Type: Lithium, rechargeable Voltage: 12V Capacity: 4,300mAh Operating time (on full charge): 8h Charging time (from flat): 2.5h Charging cycles: >500 Dimensions: W 87 x H 63 x D 43mm