DIY power bank case for 3 x 18650 batteries (not included). Features dual USB outputs and dual MICRO+TYPE-C inputs. Transparent design with solder-free installation.
This kit includes a transparent battery holder case suitable for 3 x 18650 batteries (not included). It offers a compact design with a clear view of the internal circuit board, perfect for DIY mobile power bank projects without soldering.
Equipped with both MICRO USB and TYPE-C inputs, this power bank case supports dual charging methods. It features two USB output ports capable of simultaneously charging two mobile phones, tablets, or earphones.
Charge your devices conveniently while on the go with versatile input and output options.
The circuit board is pre-installed in the box allowing you to directly insert 18650 batteries with no soldering required.
Simply place the flat-head 18650 batteries correctly, ensuring proper polarity (+ shrapnel, – spring) to avoid damage, then test charging functionality before closing.
Designed to charge mainstream mobile phones, tablets, and wireless earphones through the dual USB output ports.
Ideal for various scenarios including outdoor sports, travel, daily use, and school.
Very happy with product. There were no instructions on use, only a sheet on how to insert batteries.
Note that it will not take 18650 batteries that are commercially available, i.e. If they have a protruding positive end, they will not fit, only 18650 with flat ends suitable to connecting together with solder.
It appears functional even if not tested, quality is questionable, it makes ticking sound when connected to charging and keeps lighting up unstable, lid on the back is very difficult to prý open after closing, make a mark near gap between latches or you will have to break it open.
