A good value single cell 18650 lithium mobile power bank which you have to part assemble yourself.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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Could I replace the usb A board with a qc3.0 board, like those on ali express?
How fast does it charge? Quickcharge?
how does a single cell lipo put out 5v? please help me
Would be nice to see how efficient these banks are at using a single 18650. I have had issues with poor mah rates
I bought three of them. Two of them will turn on, but not turn off when pressing the button. They will eventually turn off under no load condition. One turns on and off perfectly, regardless of running on a load or not.
Thanks a lot for this. I was just about to buy one of those and hoping that somebody made review 😉
It looked as if you placed a protected cell in the power bank. Any downside or misbehavior if you have double-protection?
Does it auto cutoff an unprotected 18650?
In the case of an emergency and you have double a or triple a or whatever, can you use them? I have lots of double a in my car and if I were to get lost or my phone died?
Hi Julian, I bought a couple of these and they are quite good. The only issue I have, is that if the output current reaches about 650-700mA the unit switches off. The terminal voltage of the internal battery is about 3.5-3.6V when it switches off. I can only assume that the battery overcurrent protection is being activated. Is there a resistor I can change to raise the overcurrent protection threshold?
Wait can you just use it to charge your 18650s
I find mine uses 6 micro amps when it's not in use. Anyone else tested this?
Thanks! that open circuit protection which seems to have protected a 2AMP test load had me thinking my battery was dead. you've saved me binning a perfectly working battery.