Skywoods 21700 Li-Ion Battery - 5000mAh

A genuine Skywoods 21700 rechargeable lithium-ion cell, rated at 3.7V, 5000mAh and 18.5 watt hours. The 21700 is the format Skywoods build their higher-output lights around: it holds close to double the energy of an 18650 in a cell only a few millimetres larger, which is where the longer runtimes on those models come from.

It fits the D7 Nova, OHL1500, OHL600 and TZL3000 as a straight replacement for a battery that has aged out, or as a second cell carried charged. The battery recharges inside the light through its own port, or outside it in the C2 dual bay charger, which takes 21700 cells alongside 26650, 18650 and 16340.

Key Features

• 3.7V 5000mAh Lithium-Ion - Rated at 18.5 watt hours
• Genuine Skywoods Cell - The same battery supplied with the light
• For D7 Nova, OHL1500, OHL600 and TZL3000 - Direct replacement or a charged spare
• Nearly Double The 18650 - 18.5Wh against 9.62Wh in the same chemistry
• Rechargeable In Or Out Of The Light - Or in the C2 dual bay charger

Ideal For

• Replacing An Aged Cell - Restores runtime on a light that no longer holds charge
• Carrying A Spare - Swap in a fresh cell rather than stopping to recharge
• Long Dives and Extended Use - A second battery doubles time on the water
• High Output Lights - The capacity the 3000 lumen models are built around

Technical Specifications