Best / Fastest way to discharge lipo to storage volts

[Zoea]

Hi

I find myself charging excess lipos or not using each enough when I go out with my RCs. I'm fed up with "1a" (0.2a more like) 5w discharging a full lipo to storage - this can take 3 hours with balance to 2*3.8v .

I need a 40w+ discharger or balance storage charger - ideally much more... Anyone know one specced to this? Since my 2s are rated at least 30c (8*30 amps) I should be able to quite quickly discharge each to 7.6v, then put it on a cheap charger for final balance. However there is nothing on the market to do this. Can I make something ? I don't mind manually watching the voltage drop.

Creative solutions welcome. Yesterday I spent 4 hrs storage charging and I have a couple of better chargers even.

Thanks
Zoea