We are shipping to the EU as normal. We generally post the next working day. However, delivery within the EU is slow at the moment! Sorry, this is beyond our control, and thanks for your patience. Import charges may apply to orders delivered outside of the UK.
No deliveries to Russia
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.
International orders welcome. For more details please see Delivery
USB Li-Ion Battery Charger (7.4v)
USB powered 7.4v Li-Ion battery pack charger. JST connector. Suitable for charging Scurion caving lamps. Essential expedition accessory. Small investment to make expensive bit of kit more versatile. Can be easily adapted with Sten Light connector, and also original Little Monkey (original pre 2010 designs). Can be adapted for any old lamps using 7.4v li-ion battery. Not suitable for more recent 3.7v lamp designs such as Rude Nora
Please note that we are a small manufacturing business. Officially we work Mon-Thurs (excluding public holidays). If closed for holidays etc we will provide notice on CustomDUO calendar.
We aim to despatch CustomDUO stock products within two working days, and generally the next working day. We make every effort to keep our on-line stock availability right up to date (and generally don't get caught napping). When placing an order, please ensure that your delivery details are correct, and also that your email address is current, so that we can keep you informed on order progress.
Before purchasing any Customduo product please ensure that you have read and accept the terms
3.7V li-ion USB chargers
Full range of USB chargers for 3.7v li-ion battery arrangements. USB-A, micro USB and USB-C. Perfect for very latest caving light tech, such as Rude Nora lamps and Filthy Edna lamps, or other 3.7v li-ion charging requirements. New Monkey tail design!