There's been a bit of a tradition of Poundland power banks not quite meeting their capacity specs, but this one does hit the 4Ah mark.
The main features are USB-C charging at around 2A, a decent 2.5A output capability and the ability to put out 5V while also being charged to allow UPS (uninterruptible power supply) style functionality.
The circuit board has a standard power bank chip and also a combined control/MOSFET battery protection chip.
At £5 it's worth buying the unit for the bare lithium cell, but note that it's a standard type and not the high current type suited to drones and other high current applications.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
The main features are USB-C charging at around 2A, a decent 2.5A output capability and the ability to put out 5V while also being charged to allow UPS (uninterruptible power supply) style functionality.
The circuit board has a standard power bank chip and also a combined control/MOSFET battery protection chip.
At £5 it's worth buying the unit for the bare lithium cell, but note that it's a standard type and not the high current type suited to drones and other high current applications.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
How long can you run an ozone generator with that? Long enough to kill ones self?
4000 mAh is a small powerbank, and probably was at the time of review. Many phones now have a 5000 mAh battery, so allowing for losses, it wouldn't do a lot!
But as usual and excellent review and enjoyed the circuit analysis.
I’ve had one of these for a while. I used it for a day to power a heated jacket and now it’s done a whoopsie and is no longer working. No lights on the button and the IP5306 gets very hot when charging. I could buy another but it’s more fun trying to find out what’s up with it. Are we a sad lot?
Well explained 🙏
2 ideas that are better than using rubbing alcohol to dissolve glue. 1st one is WD-40 it is amazing how well w-40 can penetrate and get under the glue so it just slide right off! The 2nd one is a cleaning product sold in America called Fantastic it does the same thing but it just takes a little more time for it to penetrate.
I always feel that a power bank that says 4000mAH on it ought be to able to supply 4000mAH at the 5V output rather than just at whatever cell or battery is in it.
4000mah – PAH – Pester me not with trifles!
I can now buy a credit card sized 5000000mAh power bank on eBay. That's 5KAh ! ! !
(How far can this 'add a zero' one-upmanship advertising go? Only time will tell :¬)
How much is it
Link to usb load tester
Removing these glued LiPo batteries feels like defusing a bomb. If these batteries have not been discharged first, it becomes even more realistic. 🤣
(That was a joke, by the way. ALWAYS discharge first!).
Clive, I'd like to offer a full and frank apology for what happened, i never knew, honestly!
I find the feature of charging whilst a load is connected great. Does somebody have a list with devices capable of this?
To help remove lithium batteries I use a cut up credit card, I put a slight 'chisel' profile on the edge, with a slight curve…it seems to go under batteries without risk of puncture, or deforming the battery…