Ultrafire 3.6V 880mah Protected Li-Ion Rechargeable Battery RCR123A CR123A 16340 CR16340 (as low as) $3.25!

 PLEASE NOTE:  Image Shows 2 Batteries. (Batteries Are Sold Individually)

The Ultrafire 16340 batteries are a replacement for standard CR123A batteries in many applications. Sometimes called an RCr123A or Rechargeable CR123A some caution must be excercised as these cells are 3.6V, not 3.0V as is a standard CR123A and these cells are also about 1mm longer than is standard so if you're using 2 in series you need to be aware that they'll be 2mm longer in total and outputing 7.2V(8.4 peak). These are the right choice if your using them in an LED flashlight known to fit this type of cell - otherwise we recommend our Tenergy cells linked below.

• Rechargeable CR123A Li-Ion Batteries with 3.6V working voltage and advertised 880mAh capacity.
• Can be recharged up to 500 times.
• PCB protection against: Over-Discharge, Over-Charge & Short Circuit.
• Dimensions: 36 mm Height x 17 mm Diameter (+/- 0.5 mm)

No express or implied guarantee of compatability with any device can be made. Please do your research and make sure that this battery is compatable with the item you intend to use with. For SureFire and other brands of incandescent(halogen, krypton, xenon, etc) flashlights we do not recommend these batteries unless you're using them in a manner consistent with the voltage requirements of your lamp. Charge only in a smart charger designed for 3.6V Lithium Ion batteries. Do not mix and match old and new, used and unused batteries. Do not dispose in a fire. Use special caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode or burn if mishandled. Make sure the user has enough knowledge of Li-Ion rechargeable batteries in charging, discharging and assembly before use. Always charge in/on a fire-proof surface. Never leave charging batteries unattended. We are not responsible for damage if there is any modification of the batteries/chargers in any form or shape (including pack making). We are not responsible for any damage caused by misuse or mishandling of Li-Ion batteries and chargers. We only recommend using Lithium Ion rechargeable batteries with a control circuit (protection PCB) to assure safe charge, discharge, etc, use of lithium ion batteries with a protection circuit is potentially hazardous