[john61ct]

Two factors

A. Your willingness to spend $300+ on something very OTS ready, get up to maybe 20-30A?

Or B. for cheaper, and/or maybe higher amps, willingness to DIY maybe solder components

I have tons of unorganized notes scattered around, links to lots of threads across different forums some very very long.

There may very well be a cheaper OTS unit in there.

Just need to know which direction to start from.

 

[john61ct]

Example: https://www.ebay.co.uk/itm/EBD-A20H...ity-Tester-Resistance-Multimeter/163109074258

 

[john61ct]

Another approach

https://hackaday.com/2020/01/07/liquid-cooling-keeps-this-electronic-loads-mosfets-from-burning

https://hackaday.com/2017/02/28/beefy-100-amp-electronic-load-uses-two-mosfets

From this thread https://www.rcgroups.com/forums/showthread.php?3490399-High-Power-LiPo-Discharger-Project