Review on Battery Tender 3 Amp Car Battery Charger: Automotive Charger and Maintainer for Cars, SUVs, and Trucks - 6V/12V, 3 Amp Charger by Cornelius Reeves

I've used a used solar battery maintenance tool for years but it's sitting in the garage now. So I needed a battery service technician, but at the same time I also needed a charger. Due to bad timing, the wire broke and shorted out while it was sitting for a few days right after I started keeping it in the garage. The battery was so weak that the battery for the starter could not jump over. Reading about 9 volts. Researching on the internet, a car battery is supposed to be 0% charged when it reads 10.5 volts, so it was indeed dead. I was able to use the solar panel and open the door to charge the battery to 10.1 volts when this charger arrived at 7:30 p.m. It took less than a night to fully charge. It flashed green for 4-5 hours indicating more than 80% charge and was fully charged the next morning. Started right away. A regular charger would cost about the same or more, but then I'd have to buy a separate tender. Cheaper providers will usually not be able to recharge a very empty battery as quickly. He did exactly what I needed.