DIY power bank kit supports 1-2 18650 lithium batteries for portable charging.
This DIY power bank kit fits one or two 3.7V 18650 lithium batteries (flat or pointed tip). Featuring a high-quality plastic shell and integrated power motherboard, it provides secure, reliable power output with a built-in anti-reverse connection circuit to prevent damage from improper battery installation.
Designed for portability, this compact case includes spring iron sheets for battery contact and supports USB Type-C input and output at 5V 2A, enabling fast and versatile charging.
Install batteries in any orientation without risk: the anti-reverse circuit protects the motherboard, and the kit functions normally if at least one battery is installed correctly. This stability ensures longer device life and safer use for your portable power needs.
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Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
Ali is the best. Ali is the best. Ali is the best.
small and efficient
It is a mobile charging box. The output is only 5V via USB-A. Type C is for charging the main 18650 battery. The product description is incorrect and difficult to understand. It should be clearly stated. Even a single 18650 battery can be used. Two units connected in parallel.
The switch is for LED lamps. Long press to turn on and off. Difficult to handle.
Small, lightweight, and affordable. Cable is not included.
Good quality product. I recommend it to everyone.
Portable power bank with high-brightness white LED that can be activated by a micro switch. A blue LED indicates charging. Can be powered by one or two 18650 flat-head batteries, which can be inserted through a sliding door.
In my use, it powers LED strips with a USB cable, so it would be interesting if the switch activated the USB instead of the white LED, and the BMS/switch part is not easily accessible, but still, the price-to-utility ratio suits me completely.
