EFEST 3.5K mah 20A IMR High Drain Flat Top Single Battery (2 in a Pack) - Case Included with K1 Single Charger for E Cigarettes Starter Kit No Nicotine : Amazon.co.uk: Health
18650 3000MAH 35 AMP LIMN LION High Drain Rechargable Flat Top Battery | Efest - Vapecentric