After looking at many similar battery care products, I chose this product based on price and features. It didn't get many reviews but I thought wth why not try it. I like it! What I didn't notice in the details of the product is that it increased the temperature. Of course it's a C, not an F. That's the only negative I can say right now. But it's better than nothing. Could this affect charging? In any case, after using HF's Float charger which didn't let my plow truck's battery sit in the backyard for long, this is enough. Removed the battery and left it there every day, I checked it. I will most likely buy a few more. Time will tell the durability and build quality.
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