Li-ion battery power pack for HL08/HL20/HL40

Remote external batteries for headlamps HL08, HL20, HL40. Remote battery Ferei BP2836B, BP4836B or BP6836B for use with HL08, HL20, HL40 headlamps? HL65. It allows you to multiply your autonomy by 2, 4 or 6. Ideal for medium duration races or races over several days. Slips easily into backpack.

This product is no longer in stock

33,25 €

  • 5200mAh
  • 10400mAh
  • 15600mAh


Professional lithium battery power pack , used for Ferei 5.5DC version HL08,HL20 and HL40. 

Extend 5.5 DC Jack and OD 3.5mm cable .
2x18650 Li-ion battery inserted with protection circuit board.



Weight: 128g
Capacity: 5200mAh
Output Voltage: 3.7 to 4.2V


Weight: 235g
Capacity: 10400mAh
Output Voltage: 3.7 to 4.2V


Weight: 337g
Capacity: 15600mAh
Output Voltage: 3.0V to 4.2V

TypeBatterie Lihtium Puissance 5200mAh / 10400mAh / 15600mAh
PuissancePuissance 5200mAh / 10400mAh / 15600mAh
PoidsPoids 128g / 235g / 337g


  • 47 reviews
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    4.8 /5

    Based on 47 customer reviews

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    Bruno L. published the 03/04/2020 following an order made on 20/03/2020


    bon accessoire

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