Review on PriorityStart 12 Volt Pro SP Automatic Battery Protector Tools & Equipment by Minas Chase

Basically the voltage cut off point for Priority Start is lower than what is required to start my F250. PriorityStart installed! ProMax HD 12v car truck battery start protection on my 2002 Ford F-250. I found a voltage leak that I couldn't find and thought Priority Start (PS) might help with dead batteries. I put in a new battery, 800 CCA. Installed the PS - it was easy enough, used a rubber band to attach the block to the battery. The first test was to leave the truck headlights on until the PS opened the circuit. I monitored battery voltage, started at 12.8 VDC, PS disconnected from battery (PS glows green to red) at about 10.8 VDC (this took a long time). Brake pressed, PS reconnected (PS flashes red on green) but the truck wouldn't start, instead turning a couple of slow corners with a growl. Charged battery with PS and disconnected ground from battery, back to 12.8 volts, just reconnected battery, truck started normally. PS reinstalled. Checked the current (my known voltage leak) and it was running at about 1 amp. Connected to the ground terminal for PS to work, PS operates at about 11.0 VDC. Hit the brakes, plugged the PS back in, tried to start the car - it won't start. My conclusion is that the PriorityStart HD allows too little voltage drop to crank my engine, which is why I returned it.