NEW 2015 38A battery, just came out March 2015 and we're the first to have them!
The new cloud chaser battery from Efest is rated at 38A and 2100mAh to compete against the VTC4.
Size: 18650 (18.3mm diameter x 65.7mm long)
Type: IMR / Li-Mn (Rechargeable)
Rated Capacity: 2100mah
Max Discharge Current: 38A
Style: Flat Top
Rated storage temperatures:
1 year: -20°C—25°C
3 months: -20°C—45°C
1 month: -20°C—60°C