Sidiou Group Rechargeable Powerful 18650 3000 mAh 3.7V Li-ion Rechargeable Battery + Battery Charger with Protective Board and Bigger Power Capacity (A Set of 2 x Batteries & 1 x Charger) Sidiou Group is a registered trademarks both in European and USA. Sidiou Group 18650 3000 mAh 3.7V Li-ion Rechargeable Battery (2PCS Batteries) + 1pcs Battery Charger Reliable 18650 Battery: Integrated with protective board, avoiding overcharge and discharge, protecting your torch lights or head torches. Backup Rechargeable Battery: Spare 18650 batteries for professional people, such as campers, explorers, policemen, hunters etc. Applications: Battery powered for high-power CREE LED torches, head torches targeted at longer run time, not suitable for electronic cigarettes.