You're in : / online-store
/ Optimate 4 Battery Charger
With a weatherproof enclosure and cables rated down to -40°F/C, the Optimate 4 is a unique diagnostic sealed battery optimiser for 12V lead-acid (sealed maintenance-free, gel, or filler caps) batteries up to 50Ah. Dual desulfation mode saves neglected batteries other chargers can't!
Like all OptiMate chargers before it, the microprocessor controlled OptiMate 4 can save neglected batteries, but the OptiMate 4 is even more effective, with a new dual-stage Recovery and Turbo Recovery desulfating action. For neglected deep-discharged batteries the Recovery mode engages automatically, while the Turbo Recovery mode engages for more severely neglected batteries.
Like all other OptiMates chargers, the Optimate 4 intelligent charger then charges the battery, verifies that the battery is as fully charged as its basic state of health allows, and then checks for & detects dead battery cells.
Now the OptiMate 4 also has the following new features:-
But, the most important attribute of the OptiMate 4, as with all OptiMates, is the safe, optimal maintenance of your battery during long term storage, achieved by its gentle maintenance cycle which automatically allows the battery to rest for 30 minutes of each hour of the maintenance cycle while it remains connected.
The automatic multi stage program engages as soon as the OptiMate is connected to a 12V battery that has at least 2V:-