Introducing our 18W Smart USB Charger, perfect for charging your 18650 or 21700 Li-ion battery. This charger comes equipped with dual USB, USB-C, and micro-USB connectivity options, making it highly versatile and compatible with a wide range of devices. With its compact design and powerful charging capabilities, this charger is a must-have for anyone who needs to stay connected on the go. Whether you're using your phone, tablet, or other device, our 18W Smart USB Charger will keep you charged and ready to take on the world.
eBay
Uninterruptible Power Supply Shell Mecha 8-Cell 18650/21700 Power Bank Shell Diy Kit Welding-Free Mobile Power Supply batterybox
Aliexpress UK
Can be installed 4x flat 21700 lithium battery(battery not included). 1x 21700 Power Bank Case(Batteries not included). The power bank case needs to be welded with batteries in parallel. 4.2ft OFC Boom Microphone Audio Cable For Beyerdynamic MMX300 II Headphones d.
eBay
Portable Mini DIY Power Bank Case 1 Slot 18650/21700/21650 Battery Power Bank Shell Type C Output Emergency Power Supply Shell
Aliexpress UK
Can be installed 4x flat 21700 lithium battery(battery not included). 1x 21700 Power Bank Case(Batteries not included). We're engaged in DJI accessories, console & arcade parts, military models and so on.
eBay
Type-C 18650/21700 Battery Power Bank Case DIY Portable Battery Storage Box Power Bank Holder Case Container without Battery
Aliexpress UK
In addition, the product does not support modification, welding. The motherboard is retrofitted with an anti-installation chip, installing the reverse does not burn the motherboard, but due to the spring shrapnel is one piece, the battery broken skin, battery short-circuit, a positive and a negative, series connection will cause the burn spring, but re-installed correctly, the motherboard is always able to use normally, will not burn.
eBay
100W PD Fast Charging Power Bank DIY Kit 4-Cell 21700 Battery Case with Built-In Cable Gray Power Bank Housing for Electronics
Aliexpress UK
Battery Compatibility: Accommodates 2 x 21700 batteries (soldering required; batteries not included). Do not reverse polarity. Reversal will burn the mainboard; burnt ICs will show visible traces. After installing the mainboard and batteries, secure the batteries with adhesive tape.
eBay
Welded DIY 2 Slots 21700 Batteries Power Bank Case Quick Charge DIY Shell For Phones Charging 2x 21700 Battery Storage Boxes
Aliexpress UK
In addition the product does not support modification, welding. If the use of non-compliant batteries are not responsible for after-sales. The motherboard is retrofitted with an anti-reverse connection chip, installing the reverse does not burn the motherboard, but due to the spring shrapnel is one piece, the battery broken skin, battery short-circuit, a positive and a negative, series connection will cause the burn spring, but re-installed correctly, the motherboard can always be used normally, will not burn.
eBay
4* 21700 DIY Power Bank Case PD22.5W Powerbank Case 21700 LED Screen Transparent Battery Storage Shell For Huawei Xiaomi Sumsung
Aliexpress UK
Can be installed 4x flat 21700 lithium battery(battery not included). 1x 21700 Power Bank Case(Batteries not included). Upgrade Plastic Garage Storage Box RC Crawler 1/10 Scale Accessories Decoration.
eBay
4*21700 DIY Power Bank Case PD22.5W Powerbank Case 21700 LED Screen Transparent Battery Storage Shell For Huawei Xiaomi Sumsung
Aliexpress UK
Can be installed 4x flat 21700 lithium battery(battery not included). 1x 21700 Power Bank Case(Batteries not included). The power bank case needs to be welded with batteries in parallel. Size: 95 52 47.5mm.
eBay
22.5W Quick Charge Wireless 21700 Battery Storage Case QC PD 8*21700 Detachable Power Bank Case Without Battery
Aliexpress UK