Negative Positive
Title: Not worth it.
Review: This product does what it suppose to, shuts off connected accessories when battery voltage drops to 11v. Problem is that this is too low for most cars to start engine with. I have a 2010 mid size vehicle with good battery that hold charge in below freezing weather for weeks at the time. Engine will turn one time, lights go dim and that's as far as i got with this product. I followed instruction by connecting device awhile engine is running. I tried it two days in the row. Had to recharge my battery of course for second try. I really wish it would of worked. I wanted to use it with in-car 12v Wi-Fi EVDO router that i keept forgetting to unplug and it totally drains my battery overnight.
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