Ferei Rechargeable Battery Box (For HL20AA/HL40AA/HL40AAII)
Ferei
$120 HKD
AA battery pack, which can be used with the Ferei HL08, HL20 and HL40 head torches (AA and chargeable versions compatible). The waterproof box can hold 3x AA batteries for a fast swap during races. Also ideal for overnight or multi-night runs.
Specifications
- Require 3x AA batteries (not included)
- Compatible with Ferei HL08, HL20 and HL40 head torches
- Note can be used with Ferei HL40II but not fastened to head strap and only with extension cord
- Weight - 50g without battery
