eBay has the Efest 3000mAh/35A IMR 18650 High Drain Flat Top Battery – 4 Pcs in $28.38 with FREE shipping.
Product Features:
- 18650 Size.
- IMR Chemistry.
- 3000mAh Nominal Capacity.
- 3.7v Voltage. 20A Continuous, Rated 35A Max Pulse by Efest.
- Rechargeable.