It’s a solid idea, if I had other uses for power tool batteries. Unfortunately the only tools at home are ancient Ni-MH Bosch ones and I don’t especially want to buy power tool batteries specifically for this project, if I can help it.
Perhaps getting one of those power tool → USB C converter boards to use it as a laptop power bank could justify it to me?
How much power do you need?
A couple of us have been discussing a 100W 6x21700 power bank on this thread.
100W is about right. Thanks for the heads up, that product looks very promising, I might get one to try.
Beamshots!
The treeline is 280 metres away.
The other flashlight is a Natfire SF2 LEP.
For some reason, after a while of non use the AliExpress buck converter’s current limit has fallen to about 8 amps. Disappointing. Only ~35 watts of LED power here.
These beamshots made me realise what you really need is a Maxabeam…
