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Optimate 4.5 BMW Can Bus Goldline DUAL Charger with FREE hook

£92.90 £79.90


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You get the latest OptiMate and a FREE hook to hang the OptiMate from the handlebars.

The OptiMate 4 Dual is no ordinary battery charger. It’s revised and upgraded state-of-the-art electronics are designed to test, charge and recover all lead acid battery type batteries (including GEL and AGM) and will work on all BMW motorcycles with the modern Can Bus wiring system.

What’s more Optimate 4 BMW CanBus Charger will continue to monitor and test the battery delivering the right amount of charge at the right time, every time.


All BMW motorcycles from 2004 with CanBus including:

All C series (scooters)

All F series

All G series

All K series

All R series

All S series

ALSO FITS all BMW motorcycles built prior to 2004 and all other makes of motorcycles using the included crocodile clips.

BMW owners have reported problems with the CanBus electronic management system with which newer bike are being equipped. The CanBus breaks the contact between the battery and the DC socket when the maintenance input current via the socket falls below roughly 200mA. It fails to re-establish this contact so of course the battery goes flat as no current gets through to keep the battery charged.
The Optimate 4 BMW CanBus charger gets over this problem by keeping the connection open when other chargers would fail to do this.

Technical Specifications

• Recommended for: AGM/MF, STD, GEL and spiral cell batteries from 2Ah to 50Ah

• Long term maintenance: Up to 75Ah

• Programme control: Microprocessor, 6 stages, fully automatic

• Typical annual energy cost: Less than £1.00 per year (continuous maintenance)

• Output current (bulk charge): 1A

• Automatic desulphation: 2 stages (recovery and Turbo-recovery)

• Charge time limit: 48 hours (maintenance time: unlimited)

• Maintain / test cycles: 30 min/30 min (alternating hourly)

• Charge retention test: 5 possible results from ‘good’ to ‘bad’
• Size: 200 x 75 x 61mm

• Weight: 1000g

• Enclosure classification: IP54

• Input cable length: 2m

• Output cable length: 2m

• Included Accessories: O9 DIN Plug Lead; O4 Clamp Lead for bench charging

• Operation temperature range: -40°C / +40°C

• Warranty: 3 years


Keep your OptiMate charger off the floor – hang it on the motorcycle or other suitable location

• Fits any Optimate charger with integrated wall mounts.
• Easy to fit to charger – Mounting bolt fits through mounting hole adjacent to AC cable.
• Slots provided to tie excess AC or DC cable to hook with optional Velcro strap or zip tie.
• Made from durable high temperature ABS.