CustomDUO Shop

Calendar

We will be closed 19th May - 9th June 2026

The Online Shop allows payment with most debit and credit cards, without the requirement for a Paypal account. Add product to cart and option is offered at checkout. 

 

Please pay attention to our CALENDAR above.  If we are CLOSED, orders will be posted when we return.

 

International orders welcome. For more details please see Delivery   Please note, you are responsible for any import charges made by your postal service / your country.

Lil' Monkey Li-ion Battery Chargers

 

For charging Li-ion batteries, including Rude Nora caving lamps.  Also available for Scurion caving lamps.

Nora 3.7V li-ion 'switch mode' USB-C charger  (suitable for RUDE NORA)

 

Our very latest 'switch mode' USB-C smart charger for 3.7v li-ion battery arrangements. Perfect for very latest caving light tech, such as Rude Nora and Filthy Edna lamps, or other 3.7v li-ion charging requirements. Dedicated li-ion charging chip to manage charge profile to best maintain battery condtion, and produces very little heat. Super fast and efficient charge profile. Will charge up to 2A during constant current part of charge cycle (depending on USB-C supply). Will, for example, charge a 3.7v 7Ah (1s2p) Nora battery pack from flat to full in approx 4 hours. Works with all USB-C supplies, including latest smart USB-C charging.  Super stylish compact design. Physically a little bigger than the monkey tail chargers, so that they are trickier to mislay! 

 

To charge, simply connect battery pack to the charger, and then connect charger to suitable USB-C lead / power supply. 

Red light charging, green light full. USB-C lead not included.  

 

£25     

Nora 3.7v switch mode charger

7.4v li-Ion 'switch mode' charger  (suitable for SCURION)

 

Latest 'switch mode' USB-C smart charger for 7.4v li-ion battery arrangements, perfectly suited to charging Scurion caving lamps. Dedicated li-ion charging chip to manage charge profile to best maintain battery condtion, and produces very little heat. Super fast and efficient charge profile. Will charge up to 2A during constant current part of charge cycle (depending on USB-C supply). Will, for example, charge a 7.4v 7Ah (2s2p) Scurion battery pack from flat to full in approx 5-6 hours (tbc). Works with all USB-C supplies, including latest smart USB-C charging.  Super stylish compact design. Could be adapted for Sten Light with suitable connector, or other caving lamps that use 7.4v li-ion battery arrangements.

 

A small investment to enhance an expensive, top quality, caving lamp such as Scurion. An essential expedition accessory, or just an upgrade for a bulky 'old skool' mains chargers (possibly offering a faster charge cycle too)! 

 

Red light charging, green light full  (and blinks red / green when connected to power, but not connected to battery).  

USB-C lead not included.  

 

£25    

7.4v switch mode charger (Scurion)

3.7V li-ion USB 'monkey tail' chargers 

 

Range of compact 'monkey tail' USB chargers for 3.7v li-ion battery packs. USB-C, micro USB and USB-A . Suitable for Rude Nora and Filthy Edna lamps, or other 3.7v li-ion charging requirements. Efficient charge profile. Will charge at up to 1A during constant current part of charge cycle. Useful compact form charger, but note that we have sold replacements to people that have managed to mislay them, so maybe worth having a spare just in case! 

 

To charge, simply connect battery pack to the charger, and then connect charger to suitable USB-C lead / power supply. 

Red light charging, green light full.    

 

£12    

Li-ion Chargers (Monkey Tail)