What the manufacturer says:-

When a vehicle battery is left uncharged a process called battery sulfation occurs.

This is when sulphate builds up on the lead plates within the battery, this process starts almost immediately, and if left even over a relatively short period of time this sulphate will not only reduce battery performance, but dramatically shorten the life of the battery.

The only solution to remove sulphate from the lead plates and restore battery performance is to use a Desulfating Deep Pulse Charger/Maintainer.

The Milenco chargers by Optimate are the world’s most efficient and advanced Desulfating Charger/Maintainers available.

This is the ideal product to protect, charge and maintain your recreational vehicle battery for those periods when the vehicle is not in use.

The worlds most advanced fully automatic battery care.

Can also be used on cars, caravans, motorhomes, vans, motorcycles and boats.

Features

Advanced 12V Pulse battery maintenance.

Save money by extending the life and improving the performance of your 12V battery. The Milenco 6 senses the battery condition, recharges and keeps your battery at 100%. The maintenance program delivers only what the battery needs, never overcharges, never undercharges.