how is this?

[Rtsbasic]

Its a myth that you can't use a tray with NIMH's. You shouldn't use NiCD trays with NIMH's because NiCd ones cut off a lot lower which will harm NIMH's.

Some people use a series of lightbulbs with a diode to cut off as a fast discharger, make sure you put a cut off in place if you do that though as if you take a NIMH to 0.6v at 10 amps you may harm it.