The 26650 battery includes a variety of models.
For example, the 5000mAh lithium-ion battery is used for
LED flashlights; the 3.2V, 4000mAh lithium iron phosphate battery
is used for battery packs with specific voltages; the 3.2V
3800mAh IFR rechargeable lithium iron phosphate battery
the 3.7V, 3300mAh lithium-ion rechargeable flashlight battery, etc