Poor Man's Trimetric?
I want a cheap sort of 12v battery monitor that can measure at least 100a and keep track of AH. Need some advice here on whether these possibles are any good in the first place, and then about the ac...
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we posted only 3 minutes apart so I do not know if you saw my post.
But what you decided on is the 200 amp version of the 100 amp version I employed and found to be inaccurate at low currents. I'd have to assume the 200 amp version is even more so at low currents.
I was never able to get it calibrated so it would read both 38 and 1.5 amps accurately, in fact anything under 1.5 amps could not be calibrated correctly. It would read 0.0 amps when 0.78 amps were still flowing.
That 9 dollar meter might cause 100$ worth of headaches.
But what you decided on is the 200 amp version of the 100 amp version I employed and found to be inaccurate at low currents. I'd have to assume the 200 amp version is even more so at low currents.
I was never able to get it calibrated so it would read both 38 and 1.5 amps accurately, in fact anything under 1.5 amps could not be calibrated correctly. It would read 0.0 amps when 0.78 amps were still flowing.
That 9 dollar meter might cause 100$ worth of headaches.
