OptiMate 4 Dual Program is the latest version of the multiple award-winning OptiMate 4 - the unique multistage battery optimiser specially designed for modern 12V starter batteries from 2.5 to 50 Amp-hours. With OptiMate 4 Dual Program you can now either charge the battery direct, or select the program to charge via the 12V port on CAN-bus equipped BMW motorcycles (using either the optional O2 or O9 accessory plug lead).

OptiMate 4 Dual Program has all the proven OptiMate 4 features plus:

• Fully automatic KEYLESS connection to CAN-bus equipped BMWs via the 12V accessory socket.
• Low voltage PULSE recovery for even more effective recovery of badly neglected, sulphated batteries.
• A user-friendly initial battery condition test on connection to give an instant indication of battery condition prior to charging.