Ferei Long Life Battery to suit HL40II Headlamps - Run Vault

Ferei Long Life Battery to suit HL40II Headlamps

Regular price$104.95
GST included. Shipping calculated at checkout.

  • FREE SHIPPING on all orders over $99 within Australia
  • In stock, ready to ship
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Stash this in your pack to provide almost 18 hours of burn time for your HL40II headlamp on maximum brightness!

* Professional lithium battery power pack for Ferei Headlamp HL40II
* 5.5 DC Jack and OD 3.5mm cable with weatherproof connections
* 4 x 18650 Li-ion battery inserted with protection circuit board
* Weight: 235g
* Capacity: 10400mAh
* Output Voltage: 3.7 to 4.2V

**Please note - to connect this battery pack to your HL40II Headlamp you will also need the extension cable - please order this with your battery.

We aim to have your order picked, packed and shipped the same day when ordering before 2pm - orders after 2pm will ship the next business day.

All orders are shipped via Australia Post in Australia Post Satchels made from 80% recycled plastic.

We offer free shipping Australia wide on all orders over $99.

For purchases under $99 we offer flat rate shipping of $10.00 for standard delivery (2-4 days metro areas) & $15.00 express delivery (1-2 days metro areas).

Regional areas will take 2-5 days longer.

You can check Australia Posts estimated delivery times here: https://auspost.com.au/service-updates/domestic-delivery-times


Shipping to New Zealand is available at a flat rate of AUD20 converted to NZD at the current exchange rate on the day. All orders will be shipped via Australia Post standard international shipping which generally takes between 3-7 days.

Shipments sent to New Zealand are sold exclusive of GST and may be subject to import duties and taxes, which are levied once a shipment reaches your country. 

It is the responsibility of the customer to investigate the local customs costs prior to purchasing. Run Vault is not responsible for import duties and taxes.

Packages which are returned to us as a result of the recipient's failure to pay import duties and/or taxes are not eligible for a refund.

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Customer Reviews

Based on 1 review
Perfect addition for long nights

This is a great external battery pack if you want to keep your headlamp shining all night. It houses 4 of the 18650 batteries in the pack and once it’s in your running vest the weight is hardly noticeable. It’s rechargeable as well.

A great idea if you don’t like bulky headlamps on your head.

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