2 x 26650 6000mAh rechargeable Lithium-ion batteries. Note: The width is greater than the 5200mAh Keeppower 26650 batteries (26.2mm), (length is similar). and the width is also greater than the average 26650.
The this 18650 batteries can be operated in the most flashlights two expensive CR123 - replace batteries (photo batteries) (equivalent to roughly two arranged CR123). All the below information, quality and strength of the battery on our part can not be tested and adopted 1:1.
2 x PROTECTED Keeppower 26650 6000mAh rechargeable Lithium-ion batteries. The 6000mAh range of 26650s are slightly wider (26.8mm) than an average 26650. These are 1.5mm shorter than the original Keeppower protected 26650s.