Ferei Li-ion 6-Cell Battery Pack (For HL50)~ Recovery And Fitness / Injury Support They are made out of

They are made out of 100% polyester microfibre material

Suitable for vegetarians and vegans

a major advantage for running under intense sunlight

ensuring defense against UV rays even during your long runs in direct sunlight

and even the battery pack gets an alloy cable gland to keep the rain away from the precision electronics

Ferei Li-ion 6-Cell Battery Pack (For HL50)~ Recovery And Fitness / Injury Support They are made out ofProfessional lithium battery power pack, which can be used with the Ferei HL50 head torches. Ideal for overnight or multi night runs. We recommend also purchasing the 80cm extension cord so the battery can be placed in your backpack. Specifications Contains 6 x 18650 7. 4V rechargeable Li ion batteries in a sealed unit Pack is a whopping 7,800mAh Charges from the Ferei power adaptor that comes with every Ferei headlamp Size : 62x56x82mm (packet)