Lil' Monkey Shop

Lil' Monkey Battery Boxes

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International orders possible, unless otherwise stated. Please read, International delivery

Lil' Monkey Battery Boxes

Nora ABS 'clippity clip' battery box

Standard 'clippity clip' Nora 4 battery box, for 3.7v Nora li-ion battery packs, as available with Nora 4 lamp sets.

Updated design November 2024, now manufactured from ABS. Light weight 90g (excluding battery pack). Helmet mounting. Robust, waterproof construction, should stand up to plenty of caving, see note below*.

Suitable for simple Nora 3.7v 1s2p 7Ah battery packs using two 18650 li-ion cells side by side with JST connector. Could similarly be used with a 2s1p 7.4v battery packs, if you have a requirement for this voltage!

LH (left hand) cable gland standard version suitable for Edna / Nora lamps. Nora lamp cable dia 4.8mm, but should cope with a range of cable diameters approx 3-5mm (suitable gland sealant is never a bad idea depending on cable used).

RH (right hand) cable gland version also available, well suited to conversion of original Petzl Duo to 1s2p 3.7v li-ion battery pack. see guidance

£60

Nora ABS battery box - bolt down lid

Alternative 'entry level' Nora 4 battery box arrangement, with bolt down lid using anodised alloy thumb nuts or stainless hex screws, as preferred. Our most cost effective Nora box.

Manufactured from ABS, with same high quality finish as the standard Nora 4 'clippity clip' battery box. Light weight 85g (excluding battery pack). Helmet mounting. Robust, waterproof construction, should stand up to plenty of caving, see note below*.

RH (right hand) cable gland version also available, well suited to conversion of original Petzl Duo to 1s2p 3.7v li-ion battery pack. see guidance

£50

Nora ABS battery box - individual 18650 batteries (Protected / unprotected up to 69mm)

Similar to the standard 'clippity clip' Nora 4 battery box, but a little longer to accommodate two individual protected 18650 batteries (up to 69mm long) ..... or unprotected 18650 batteries 65mm long, if you know your stuff! (see battery warning below).

Standard 3.7v parallel arrangement, suitable for Nora, Petzl Duo conversion etc. Typ capacity 7000mAh, if using 3500mAh batteries. Featuring heavy duty spring contacts to accommodate variations in battery length, and avoid damage to battery ends. Manufactured from ABS. Light weight 120g. Helmet mounting. Robust, waterproof construction, should stand up to plenty of caving, see note below*. Shown on a Petzl Ecrin Roc helmet for scale.

RH (right hand) cable gland version also available, well suited to conversion of original Petzl Duo to 1s2p 3.7v li-ion battery pack. see guidance

£tbc (available spring 2025)

Edna alloy battery box - 18650 battery (protected or unprotected)

Single 18650 3.7v aluminium anodised helmet mounting battery box, with updated battery holder for a single 18650 li-ion battery. Can accomodate either a protected battery (typically 69mm long) or unprotected battery (65mm long). Edna battery box

Helmet fixing, old skool, using shock cord (included). Battery box has cable gland suitable for Edna / Nora lamp cable dia 4.8mm, but should cope with a range of cable diameters approx 3-5mm (suitable gland sealant is never a bad idea depending on cable used).

A neat li-ion conversion for the original Petzl Duo!!

Soldering is required to connect lamp cable to the circuit board in cable gland end of battery box.

£45

Edna battery holder upgrade kit

If you already have an Edna box, the new battery holder is available as a DIY kit. This can be retrofitted to the Edna battery box to conveniently accomodate a single 3.7v 18650 battery, protected (typically 69mm long) or unprotected (typically 65mm long). Kit includes the battery holder and the cable connecting circuit board. Soldering is required to connect lamp cable to the circuit board in cable gland end of battery box.

Note, this adaption is not compatible with the Edna battery packs if you're currently using these, as there is no space available in box for the JST connector. Edna screw top lid shown in last photo for illustration of connection in to box, not included.

£20

* ABS battery boxes should stand up to plenty of rough caving. But note, this is not a free battery box for life deal ! It's caving gear. If you wear it out, or are particularly brutal and manage to bust it, then you'll have to replace it, just like you would replace a caving oversuit. Fixed stainless torx screws and cable gland thread are bonded into the battery box. Remove these at your own risk. Soldering typically required to connect lamp cable in to battery box. 2off helmet fixings require drill 3.5mm typ. and allen / hex key 2mm.

UNPROTECTED BATTERIES .......

Take care to ensure correct battery polarity if using unprotected li-ion batteries. If you fit one battery in reverse (back to front), then the two batteries will effectively be short circuited together!! Things will get messy / exciting pretty quickly ..... more so if the batteries are fully charged. If you do this then you are an idoit, and that's not our fault. It's not difficult. The positve end of the holder is marked, and the negative end has big, very obvious spring contacts. It is good practice to use batteries as a matching pair, and charged to same level. We would recommend an additional layer of battery pack heat shrink wrap as good practice if using unprotected cells.