Review on SUNER POWER Battery Charger Maintainer by Carlos Damain

Bought this for our caravan which we keep in a warehouse with no electricity. I keep this on my already fully charged battery and it keeps it in good condition. Remember this is just a charger to keep an already charged battery in working order. I've only been using it for about a month and it seems to be working great; I test the battery with a multimeter and the battery is always fully charged in a week or two. If there are any problems I will update my rating.