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TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus
  • TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus
  • TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus
  • TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus

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TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus

The TecMate Optimate 4 is CANbus-ready and features a weatherproof enclosure with built-in wall mounts, improved energy efficiency and cables good down to -40 degrees, the OptiMate 4 DUAL PROGRAM is ideally suited to all powersport vehicles especially those used on water and in the cold. Tested, proven and endorsed by numerous power sport vehicle OE’s and users world-wide. Recommended for STD (with removable filler caps), sealed AGM (absorbed glass mat) & sealed GEL 12V lead-acid batteries up to 50Ah. Fully automatic operation that includes all safety features such as reverse polarity protection, no spark connection and is approved to UL & CSA safety standards for automatic battery chargers.


  • CAN-bus program features KEYLESS activation program guarantees automatic re-opening of the connection even with the ignition not turned on
  • Program 2 (default setting on this model) recovers, charges, tests and maintains the battery through the CAN-bus controlled 12V socket with the included SAE-79 accessory
  • 10 second test at connection indicates your battery condition, a quick and easy ‘ride meter’ that will determine if you are ready to go or will have to charge the battery first
  • OptiMate 4’s proven multi stage desulfation program saves neglected batteries (as low as 0.5V) other chargers can't
  • Multi step program, that includes a unique cell voltage balancing step, guarantees the fastest and most complete charge
  • OptiMate 4 will maintain your battery safe and ready-to-go for months on end, with the extremely effective “charge and rest” maintenance program
  • Hourly battery condition tests monitors the battery and the current drain by the vehicle circuitry; a problem is indicated on an easy to understand light display
  • 10 second test at connection for a more hands on diagnosis of battery condition


  • Safe for 12V lead-acid batteries AGM/MF, Standard, & GEL batteries
  • 2Ah to 75Ah rated capacity
  • Fully automatic program control microprocessor with 6 stages
  • Reverse drain current less than 0.5mA
  • Output current (bulk charge 0.8A)
  • Automatic desulfation 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 range: 12.0 - 12.6V. GOOD (green) = battery voltage > 12.6V
  • Size 7.87  x 2.95  x  2.40 inches (200 x 75 x 61mm)
  • Wall mounting easy direct wall mounting
  • Input cable length 6ft (2m)
  • Output cable length 6ft (2m)
  • Operation temperature range From -40°C&F to 40°C/104F
  • 3 year warranty


  • SAE-79: 12V DIN connector
  • SAE-74 clamps set for bench charging


Product Style RevZilla Item # Manufacturer Product # Availability
BMW CANbus 869388 TM245 Available: Requires 1-5 business days lead time prior to shipment


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TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus 4.7 5 56 56
Awesome alternative for more expensive BMW Can-Bus compatible charger The product works as advertised. Just take it out of the package, connect it to a power outlet and plug into your accessory socket in your BMW and it will diagnose, salvage (if neglected), charge and maintain your battery without your intervention. The instructions are very descriptive; if still confused, with a little of attention on what the device does plus reading the manual, you'll figure it out. Very happy with this charger and very glad to have saved at least 50% of the cost if compared with the recommended BMW one, with no compromise. December 14, 2015
High Quality, Works, Instructions a Bit Confusing Good value in a charger for a CAN bus bike. Nice to be able to charge through the auxiliary without disconnecting the battery. The instructions and indicators are a bit confusing when you first look at them. The manual needs to be rewritten. Actual use is straight forward. CAN bus models apparently will always come set for the CAN bus option. Plug it in, it will diagnose and charge, then go to alternating test/charge sequence. November 27, 2015
Absolutely perfect Could not be easier. Simply plug into the Canbus port and the charger gives a condition check and alerts you to battery charge state then it switches to charge mode and works with the BMW electronics to safely charge and maintain the onboard battery. Absolutely Perfect! November 9, 2015
No brain charger Before I knew what I was doing, I let my battery die. Bought this, plugged it in and was back in business. Ran a lead from the battery to the back seat compartment and keep the Ninja charged when not riding. Sad now, it's in the garage for the winter. Maintain light is on so I know it'll start in the spring. December 7, 2015
Does everything Automatically I did tons of research to find a charger that suited my bike. Triumph has their own version but as it turns out theirs is wrong due to SAE/BMW connections. The Optimate 4 does everything that the Triumph 3 version does except it is rated for cold weather, costs less at Revzilla, and has the proper SAE connectors. This tender does everything on its own although the directions are complicated. Just plug it in and leave it there as long as you want. I have been using it for quite some time. December 1, 2015
Best charger I've ever had. Brought my BMW battery back from the dead. I tried with another charger several times, but this one did the trick. I ride, plug it in, and let it stay on. A little pricey, but worth it since a new battery was twice as much. Switching from CANBUS to normal is super easy. Highly recommend. October 5, 2015
exemplary product Truly a great and convenient product....easy to set up and great in particular for newer BMW's with the Canbus system.Added bonus is that it is half the price of the BMW unit.Longevity still to be determined. September 21, 2015
It Works! Post review of the documentation and verifying the programming, the OptiMate has provided reliable charging. I really appreciate being able to use the powerlet accessory socket to charge the bike. All things considered, it’s not a big deal to add a SAE pigtail to the battery though. I gather there are a short list of CANBUS compatible chargers. The OptiMate seems to have a good reputation and I would say is a good option to consider. June 29, 2015
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