I have two of those and a number of older ones. The cheaper non-AGM 2012 also works just as well, and is a little better about not over-volting a weak AGM battery (works with all batteries - the 2012AGM is only for use with AGM). I also use two under-hood OBD-12 models with a small 10 amp Sunforce regulator and a single Renogy 100 watt 12v solar panel supplying power to them while parked. The solar panel and regulator will charge several vehicles at once. With only one vehicle on the panel, I've seen it boost a basically dead battery enough to start my GMC after 30 minutes in the sun. All the dead battery would do beforehand was make the starter click without the solar panel attached. The older discontinued 12151 models were great for restoring any totally dead batteries to operational condition. I used one of those to bring back a dead/replaced battery, that had sat in a corner forgotten for six years. The battery came back, and I was able to use it for a year again in the same diesel Kubota Grand L 3100 tractor it had been removed from. I have several of the 12151 models still mounted to batteries in vehicles. I also have an OBD-24 on a two battery 24 volt 800 watt solar panel system supplying 120v AC. That system supplies a small utility building, and supplies some emergency power to the garage on my home during utility power outages - before my 13 Kw PTO generator is needed for home appliances and the water supply. (Only way to stay comfortable when tornado damage has the power out for two weeks.) I've only had one go bad in well over ten years. Somehow water got into one 12151 installed on a tractor. My battery replacements have dropped considerably over the last 20 years - since I started using the BatteryMINDERS. On average, I stopped spending about $300 or so each year for batteries in my vehicle collection. I've even had a few lead acid batteries last more than 14 years before they began weakening. Mount one inside the cab somewhere, hidden, and you can just plug in the power and forget about it. If you go to an Odyssey battery in the future, be sure to use no smaller than the PC 1200. One smaller will not supply enough repeated power for the starter, and will have a shorter lifespan. I like the military spec MJT models - they're just about bullet proof.