Disassembly of some UltraFire batteries | Candle Power Forums
Amazon.com: Qsincth Rechargeable Li-ion Battery 4000mAh 3.7V Large Capacity Lithium Batteries Button Top Rechargeable Battery for Doorbells, Flashlights, Headlamps, Toys, and Remote Controls (10 Pack) : Health & Household
Fake Batteries - BEWARE!
u Home Shopping: Fake Ultrafire 18650 Batteries
Opened up a fake Ultrafire 18650. Expecting the normal smaller battery with paper wad. Not exactly sure what I am looking at. It looks like a rolled battery. Started to catch fire.