I have a MAHA C9000 for testing and charging my AA and AAA nimh-batteries. Not exactly budget, but very nice.
I have also sent for a Opus BT-C3100 V2.0 in a group buy here on this forum. Seems to be a good deal and a decent charger. Not perfect, but decent. It can analyze and charge both nimh and li-ion. And you can specify the charge current so the nimh batteries don’t get too warm.
I will mainly use it to monitor the capacity of my li-ion batteries, and to charge some 26650. I will most likely keep using my Pila IBC for charging 18650 and my MAHA C808M or the MAHA C9000 to charge nimh.
See this thread for more info on the Opus BT-C3100 V2.0: Opus BT-C3100 V2.0 "Dreamcharger" GROUP BUY Now @ $ 36. New coupon code - tatasal -(to close July 15) NOW CLOSED