Compatible with modern BMW CAN-bus systemsThis unique multistage battery optimiser is 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). The unique 6-step battery optimiser specially designed for all modern 12V starter batteries from 2.5 to 50 Amp-hours capacity, diagnoses, recovers, charges, checks & maintains your battery automatically for months....
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