Smart Battery Charger 6V-12V 1000mA 1Amp Automatic Battery Maintainer Trickle Charger Fast Charging with Detection & Repair Function for Boat Motorcycle Lawn Mower

I got this item in a very timley matter and it is exactly as described. I keep it pluged up to my home generator, and it will start every time without a bit of battery lag. This product is a no brainer. I would recommend this product to everybody.Whit

Good device seems to work quite well in the short term. I'll wait a year or so before making a conclusion. This review identifies a condition that can easily have an adverse effect on the battery connected to it. The voltage selector switch slides to the opposite position way to easy when handling. All I have are 12 V batteries and the device had been set at 12 VDC when I moved the entire system to another location. I failed to check the switch position and left the charger connected to a 12V battery for a number of days in the 6VDC mode. When I attempted to start the Generator this morning, the battery was reading only 7 VDC. That's when I discovered the switch was in the 6 VDC position. To prevent this in the future, I simply wrapped black electricians tape around the device so the edge of the tape prevents the switch from moving the switch position so easily. Photo attached.

Charger works fine but the clamps are cheesy as expected for the price. After putting these clamps on a battery a few times the rivets in the clamps broke. I opted to just re-rivet them myself but it does do what it says. I use to maintain two 12 volt 32 amp and one 12 volt 7 amp gel cell. This is only 1 amp so have patience and expect longer periods to charge with larger amp batteries. once charged it does maintain the battery. I give it a 4 stars because of the clamps but overall a great product.

Didnt work. It was cheap so i dont care