This is a rechargeable 18650 lithium-ion battery for compatible flashlight and gear users used in spare-power setups to solve the problem of keeping a USB-rechargeable backup cell ready.
Source: https://fitorchstore.com/products/uc26r

| Variant | Price | Availability |
|---|---|---|
| Default Title | 9.95 USD | In Stock |
Can I charge this battery directly?
Yes. The Fitorch UC26R has a built-in USB charging port for direct charging with a compatible cable.
What devices is this battery for?
It is for compatible equipment that uses a 3.7V 18650 lithium-ion battery, such as compatible flashlights. You should confirm your device accepts the battery’s dimensions and terminal style.
What is the capacity of this battery?
The UC26R is rated at 2,600mAh, 3.7V, and 9.62Wh.
Does it include protection circuitry?
Yes. It has built-in overcharge and discharge protection circuits to help protect the cell during charging and use.
How big is the battery?
The listed size is approximately 18.63mm in diameter by 70mm long, and it weighs 48g.