Review on 🔋 MNJ MOTOR DC Battery Monitor Meter: 0-200V 0-100A LCD Display for Cars, RVs, and Solar Systems - Digital Multimeter Voltmeter Ammeter with Current Shunt Wiring Kit Set by James Jenkins

The interface takes a while to reset power usage and other stats - power usage, mAh usage and run time have to be reset individually by holding down the small button. not my favorite. It's also important to note that this is NOT bi-directional - both charging and discharging affect power consumption, mAh and runtime in the same way. You should reset three stats after every charge if you really want to keep track. Overall it does what I wanted, which is to tell me how much time I have left on my trolling motor. Since the better performing device is *much* more expensive, I'll take it.