I have an 18S NiMH battery pack with connected in 12 parallel and I want to charge it using my SMART Solar 150/60 or 75/15. Has anyone had success using NiMH batteries with solar? I know that I'll probably need a BMs and any suggestions would be appreciated.
Hi Solarwarrior.
You wont be able to use a regular mppt to charge nimh batteries. Chargers designed for nimh batteries rely on a slight drop in cell voltage to detect when the battery is charged.
https://batteryuniversity.com/learn/article/charging_nickel_metal_hydride
