OptiMate 4 Dual Program 12V Battery Charger / Optimiser Boots Three charging mode power options:

Three charging mode power options:

ACF-50 (Anti-Corrosion Formula) was originally designed to protect aircraft from existing and new corrosion

including upside-down ("USD") forks and conventional ("right-side-up") forks

Seamless Construction For Comfort

Fits the following models:

OptiMate 4 Dual Program 12V Battery Charger / Optimiser Boots Three charging mode power options:OptiMate 4 Dual Program 12V Battery Charger Optimiser 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 an optional DIN plug lead). How it works: Switch