Fenix 21700  rechargeable battery 5000mAh​ 

 The Fenix ARB-L21-5000 21700 Li-ion battery has a capacity of 5000 mAh. The battery has sufficient power and offers stable performance. A 21700 battery is twice as powerful as a regular 18650 / 2300mAh battery. But please note: a 21700 battery is not a replacement for the 18650 battery. This ARB-L21-5000 battery can only be used in various flashlights that are specially designed for this type.

The battery is protected against overcharging and overheating.

Extra battery to use for your Fenix  HM70R headlamp

Tip for using the Fenix ARB-L21-5000
Some people say: "I take care of my batteries, I charge them as little as possible!" In the case of Lithium Ion batteries, this is the wrong economy. These batteries last longer if you charge and use them regularly.

Characteristics:

• Nominal voltage: 3.6 V (fully charged 4.2 V)
• Capacity: 5000 mAh
• Weight: 72,5g
• Diameter: 21.5 mm
• Length: 76 mm
• Protected with steel sleeve
• Protected against overcharge, over discharge and short circuit
• This battery can be charged without any problems in a rapid charger with a charging current of 2000 mA, 1000 mA already recommended
• At full charge and discharge keeps the battery after 500 charging cycles 75% of its original capacity

Tip: Regular recharging promotes longevity!