Help me choose a fuse and shunt
Four 6v golf cart batteries connected together with 2AWG wire, then 4/0 wire used to connect to the inverter posts. Inverter posts also connect to PD9270 converter/charger. According to wiring gui...
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That MRBF fuse holder in the first post is similar to mine, except mine holds two fuses, one for the charging circuits and the other for the inverter. It's a nice setup, but MRBF fuses are expensive so be extra careful!
For Ah monitoring I use, like others here, one of the cheap ebay Ah meters with its shunt on the battery bank's negative post. It works, sortof, but the amps calibration is tricky, and it often ends up reporting lower Ah than expected when the batts are full (according to sp. gr. and charging regime), so needs resetting often. But it does give more detailed usage info than just battery bank voltage (mine is often stable up to a 20% change in SOC).
For Ah monitoring I use, like others here, one of the cheap ebay Ah meters with its shunt on the battery bank's negative post. It works, sortof, but the amps calibration is tricky, and it often ends up reporting lower Ah than expected when the batts are full (according to sp. gr. and charging regime), so needs resetting often. But it does give more detailed usage info than just battery bank voltage (mine is often stable up to a 20% change in SOC).
