Optimate TM638 4 Quad Program Battery Charger (Suitable for BMW)

Whether you're riding an adventure bike, cruiser, touring motorcycle, ATV, or watercraft, the OptiMate 4 Quad Program is the ultimate solution for maintaining and restoring modern 12V and 12.8V batteries. This advanced charger is trusted worldwide for its versatility, smart functionality, and fail-safe operation—perfect for riders who want hands-free, worry-free charging.

With four selectable programs, the OptiMate 4 allows you to charge directly through a battery or via a live or BMW CAN-bus controlled 12V socket—making it incredibly flexible across a range of vehicles and charging scenarios.

Key Features:
• 4 charging programs – choose based on battery type and connection method
• Charges via direct battery terminals or BMW CAN-bus system
• Compatible with 12V AGM, GEL, and standard batteries (4–60Ah)
• Compatible with 12.8V/13.2V LiFePO4 lithium batteries (2–15Ah)
• Fully automatic multi-step charging – no supervision required
• Desulphation and recovery mode for dead-flat batteries down to 0.5V
• 1.25A constant current output with intelligent voltage control
• Automatically tests battery before and after charging
• Spark-suppressed and safe for all vehicle electronics
• Ideal for long-term maintenance – no risk of overcharging
• Weatherproof design for indoor or outdoor use (operates down to -40°C)
• Global power input (100–240V AC, 50–60Hz) – travel-ready

What’s Included:
• Weatherproof battery lead
• Battery clip set
• Hanging hook
• 1.8m (6ft) AC lead and 1.8m (6ft) charging lead with SAE connector

Technical Highlights:
• Charging voltage range: 0.5V – 14.4V
• Two-step desulphation recovery system
• Safe CAN-bus mode with low-volt pulse save
• 3-year limited replacement warranty

From smart recovery to safe long-term maintenance, the OptiMate 4 Quad Program gives you everything you need to keep your battery in top condition—so your next ride is always ready.