https://youtu.be/BaDwloxBflg
I’m testing the YINETTECH 18650 lithium battery charger module — a 5V 2.4A dual USB circuit board with digital LCD display and built-in protections (overcharge, overdischarge, short circuit). This module makes it easy to turn 18650 cells into a DIY power bank.
In this video, I build a crude power bank with two Samsung 3500mAh 18650 batteries (7,000mAh / 25.9Wh total), tape, and holders, then compare the real cost against ready-made commercial power banks you can buy online.
The big question: DIY or Buy? Is it worth making your own power bank with a powerbank module, or should you just get a commercial one that’s cheaper, sleeker, and comes with warranty? Watch and find out.
YINETTECH 2Pcs 18650 Lithium Battery Charger 5V 2.4A Dual USB Circuit Board Digital LCD Display Module with Overcharge Overdischarge Short Circuit Protection https://amzn.to/4msOStK
Samsung 35E 18650 3500mAh 10A Battery https://www.tinkertechau.com.au/products/samsung-35e-18650-3500mah-10a-battery