Basic 14500 battery (14mmø / 50mm height), with a stated capacity of 1900 mAh. Positive and negative terminals are easily distinguishable.

The battery is the lighter blue colour as illustrated.

3.7V cell

Li-Ion cell composition - only use in tandem w/ a Lithium Ion charger / charger capable of recharging li-ion batteries.

We usually sell these as replacement battieries for certain flashlights that take these.

Manufacturer rates these to be capable of 500 recharge cycles.