Top positive review
October 19, 2017
An impressive battery maintainer, for the size, price, and reliability. It works just as indicated by the manufacturer. I've had it now for a few months and it has worked flawlessly. For those thinking of buying one, be aware that this is not a battery charger. It puts out just a little over one amp an hour, so it will take a long time, even days, to bring a battery up to full charge. I use it on my Grand Cherokee which is equipped for off-road and I take this vehicle out once or twice monthly. When the light is red it is charging, then as it approaches full charge a green light blinks. Then when fully charge the green light glows steadily. It is very sensitive detecting what the battery needs: if you open a door and the interior lights come on, it will briefly blink green, and within a minute or so, it will glow green again. Fantastic!