Bmk 12v 5a Smart Battery Charger Portable Battery Maintainer

The bmk 12v 5a smart battery charger portable maintainer with 12v5a is perfect for portable battery keepers. This device has a smart battery charger feature that lets youb/c of the power loss of standard wall- outlet battery chargers. This allows you to continue to use your portable battery while having the security of having the power left over to keep your device running.