TECHNICAL SPECIFICATIONS:

***PLEASE NOTE***  this is an oversized 21700 Battery, please advise before ordering, if you have any questions about compatibility please email us before you please your order.  

Compatible Chargers:

• NITECORE UMS2 Dual Slot Digital Charger
• NITECORE UMS4 Quad Slot Digital Charger
• NITECORE UI1 Single Slot Charger
• NITECORE UI2 Dual Slot Charger

21700 Battery Compatibility:

• This is a button top battery designed for flashlights that accept standard 21700 batteries.
• It does NOT work in any non-flashlight device.
• It does NOT work in any flashlights that require a custom battery.
• It is not compatible with E4K, HC35, i4000r.
• It does NOT work in any electronics that only accept flat top batteries.
• It can be charged in a lithium-ion charger such as UI1, UI2, UMS2, UMS4.

*** WARNING ***

All users must have appropriate understanding of lithium-ion batteries before purchase. Use caution when working with and using lithium-ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium-ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium-ion battery. Do not mix and match old and new, used and unused batteries.

• DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE
• MISUSING OR MISHANDLING LITHIUM-ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH
• BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
• ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK
• ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS
• DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX
• KEEP AWAY from metal objects to prevent short circuiting
• DO NOT short circuit
• DO NOT use if wrapper or insulator is damaged or torn
• DO NOT use if damaged in any way
• DO NOT overcharge or over-discharge
• DO NOT modify, disassemble, puncture, cut, crush, or incinerate
• DO NOT expose to liquids or high temperatures
• DO NOT solder, spot weld only
• User must be familiar with handling lithium-ion batteries before purchase
• Usage of batteries is AT YOUR OWN RISK
• ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended