Test/Review of UltraFire 16340 1000mAh (Blue)

UltraFire 16340 1000mAh (Blue)

Official specifications:

  • Battery Capacity (Mfg Rated): 1000 mAh

  • Battery Chemistry: Lithium

  • Battery Feature: Protected Rechargeable

  • Battery Form Factor: 16340

  • Battery Rated Voltage: 3.6 V

  • Brand: UltraFire

  • SKU: 1055500

A 16340 from a cheap and often low quality brand with a record capacity according to the marking.

The curves do not track perfectly, but not that bad either. The battery can deliver 1A, but definitly not 2A.

This small cell do not heat much up, even when overloaded.


The rated capacity is nowhere near the real capacity. The capacity is a bit below a quality battery at low load and the difference increases with load.

Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries

Thanks HKJ.

An UltraFire battery with false claims? How shocking!

Nice slingshot ammo.
Didn’t these turkeys start making the rounds more than ten years ago?

Yea! I get to be the “new guy” posting in a thread!LOL

I’m surprised to see the logo printed at the bottom. At least they’re not using fully generic components? :open_mouth: