The CTEK 7002 Has become the least complicated-to-use battery chargers we tested. Simply plug it in, connect the clips, and push the power button. The even suggests just how much demand your battery has. When attached to our multimeter, we pointed out that this machine provides a consistent 14.4 V https://hukums.com/products/elephant-wet-dry-industrial-vacuum-cleaner-machine-20-litre-tank