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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 In Stock: Ships next business day


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TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus 4.7 5 53 53
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
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
Works great at a great price I'm completely happy with this charger. It works perfectly plugged into the powerlet jack on my R1200RT and costs way less than the BMW charger. May 26, 2015
Good choice for slow charge I first used this on a nearly 100% dead sealed battery. I plugged it into a power lead that I already had installed on my bike and it worked well. This is a low amperage charger so it took nearly 2 days to charge to full. I would have given it 5 stars, but the indicator lights are a bit confusing, so for the first several hours I wasn't sure if it was charging or not. They could have designed this better, but would probably mean adding a few more lights and increasing the cost. July 8, 2015
Super convenient charger for bikes with a CANbus system This charger will do it all. Once you read manual you will easily be able to decipher what the different lights mean, and see at a glance what the charger and battery are doing. The CANbus mode of operation is very convenient to just plug into your bike with no dangling charging cable hanging from your battery. I'm comfortable using this charger in CANbus mode with my Lithium battery as voltage is restricted. Conventional mode great for lead acid batteries where peak voltage can be higher. Build quality and connectors seems very high. Worth the money as it may prolong your battery life, and save you money in the long run. April 20, 2015
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TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus
Already Asked: 9 Questions, 69 Answers
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RevZilla Store asked: Why did you choose this?
Erik N: I needed a charger for my bike and I like the simplicity of simply plugging into the accessory port. In order to do that, you need a system that works with CanBus. This one does that, and it less than half the cost of the BMW branded charger. Nov 23, 2015
William H: BMW CAN BUS Nov 9, 2015
G M: Works great revives weak battery's. Oct 23, 2015
Baljit C: One of the few chargers that works with late model BMWs Oct 9, 2015
Michael J G: Because BMW has to have a smart charger Oct 4, 2015
Kent S: online reviews of this product indicate that it's as good or better a product than the BMW charger that costs $100 more, and that this product will accommodate my motorcycle's CANbus electrical system.
Free shipping is a really good feature.
Sep 23, 2015
Jim A: To use for CANbus systems Jul 19, 2015
Bryan F: This is for my 2014 BMW GSA1200. Works fine. Be warned that if the battery is dead then this will not charge it at all as the Can-bus needs to turn on under battery power to be charged via this charger. I suppose that is a bike design issue and not the charger. Jul 12, 2015
Julio P: I chose this item because of it's ability to maintain the battery on my BMW R NineT Canbus system. May 16, 2015
Ira B: I have owned this before and its a great tender for BMW motorcycles. Unfortunately it was stolen. So here we go again! May 1, 2015
Raul Aurelio Oscar B: I think is the best charger for my BMW F800R in the market, at the best price Mar 11, 2015
William G: Needed it for BMW and price was right. Mar 2, 2015
Richard M: Wanted a simple plug in charger for my 2012 BMW 12RT with CanBus system . From the reviews, almost all you customers are happy with this product and Revzilla makes it a stress free purchase. Thanks Mar 2, 2015
John H: It maintains GEL batteries, not every charger does. It also works with the BMW CANbus system which is important to me. Feb 27, 2015
JOHN L: Price vs O.E.M. and quality Feb 20, 2015
Ed B: Needed a charger for my GS. Jan 1, 2015
Christopher E: For ease of use my 2014 BMW R1200RT needs a CAN BUS compatible charger. RevZilla had the Optimate CAN BUS charger for half of what BMW wanted for theirs. A no brainer. Dec 2, 2014
Linda B: My son told me about this web site. Dec 1, 2014
T D: BMW performance at 1/3 the price Nov 10, 2014
David L: Cabus feature that works with the BMW outlet. Oct 6, 2014
JEFF H: best one to buy for the cam bus charging on my BMW bike. Works great. Oct 1, 2014
Dan W: $100 less than BMW OEM charger, and reviews are good. Let's see if it works as advertised! Sep 30, 2014
Greg T: Simple to use and very effective. Sep 10, 2014
Tom B: Product reputation Aug 26, 2014
Anie B: Great reviews. Will work with my BMW R Nine T! Much cheaper than rebadged BMW charger! Aug 21, 2014
G G: Good reviews, need one for BMW canbus Aug 10, 2014
Richard D: I bought this for the winter months. Aug 4, 2014
RD Realty Group, L: Wanted to charge my BMW R1200 RT with its CANbus system. Much cleaner than attaching a charger directly to my battery. Aug 4, 2014
Jon M: needed charger for BMW r1200gs Jun 23, 2014
Lowell W: I needed a charger to keep my battery always on-the-ready and this product has features that a standard battery tender doesn't. So far I am happy with my purchase. Jun 9, 2014
Rodney C: I purchased this for my 2014 BMW F800GS Adventure. Needed a charger that would work for the Canbus system on the bike. It works great with no issues to date. It also has a three year warranty which is very nice to see a company stand behind something more than 90 days. Jun 2, 2014
Jason B: Good name and quality May 3, 2014
mark s: Good reviews - I have a BMW R1200 May 2, 2014
John G: High tech stuff going on here. Apr 27, 2014
Thomas L: I investigated numerous chargers/batter conditioners for my 2009 BMW F800ST. All reviews on forums and online were positive and the charger is 1/2 the price of the BMW model. Additionally several people indicated this charger corrected battery issues through the automatic reconditioning cycle. Living in New England where the bike will sit for 1/2 the year due to inclement weather and the high price of batteries this purchase seems to be a worthwhile investment. Apr 10, 2014
Erik A: I bought this to maintain the battery in my '13 R1200GS Adventure. Dec 12, 2013
George K: 2007 BMW R1200R Dec 9, 2013
Keith T: Recommended on K1600 forum as a very good unit that works via the canbus port. Nov 6, 2013
Mark C: Great reviews and 1/2 the price of the BMW brand. Sep 27, 2013
Kerry R: I need a charger that works with CANbus electrical system on my 2012 R1200R. Aug 22, 2013
Phillip B asked: I don't see "CANbus" listed anywhere in my owners manual. Anybody know if this will work for a 2013 BMW F800GT ? Oct 16, 2013
Answer this · Send to friends Good question? Yes (1) No (0)
Barry V: Hi, Phillip,
This charger can be used in two different modes. Mine was already set for the CANbus mode upon arrival. It is fairly simple to switch modes, the instructions are included with the charger, and the lights on the unit will tell you if the charger is operating properly.
I am pleased with this charger. It allows me to charge the battery through the CANbus on my R1200GS at the factory socket.
Hope this helps.
Oct 16, 2013
Reply to Barry Good answer? Yes (0) No (0)
Alp B: I am not familiar with F800GT.
I used the charger on my R1200GS and it needed the CANbus version of the charger.
If your manual does not describe CANbus mode then most probably your charger is the standard version and will not work with a CANbus system.
Manual for CANbus version has detailed description of CANbus operation.
Oct 16, 2013
Reply to Alp Good answer? Yes (0) No (0)
Muhammad H: Dear Philip,
I'm not exactly sure if your bike is fitted with the din plug socket. If you have it, you can use the directly into the plug n play. If not, u have to use the alligator clips direct to your batt and follow their simple instructions provided.
Oct 18, 2013
Reply to Muhammad Good answer? Yes (0) No (0)
Diego B: If you have a Power socket will work. CANbus is the systems that manage the BMW computer, that let them know a diagnostic of your motorcycle. Op 4 is design to not cook this system when you connect it to the Power Socket. Oct 16, 2013
Reply to Diego Good answer? Yes (0) No (0)
Ron S: it is dual program so just use it non-canbus and make a direct connection to the battery. It works flawlessly this way. Oct 16, 2013
Reply to Ron Good answer? Yes (0) No (0)
Mark C: Recommended by our local BMW dealer for our 2013 F700GS and 2014 F800 GSA. Oct 17, 2013
Reply to Mark Good answer? Yes (0) No (0)
brett m: It works w my 2013 800gs so I dont see you having a problem. Oct 17, 2013
Reply to brett Good answer? Yes (0) No (0)
A shopper asked: Can I charge 60-80 Ah car battery with this charger? Dec 21, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Ira B: The instructions state that the charger is for 3Ah to 50Ah. The maximum output current is stated to be 0.8A.

The charger has a 48 hour charge safety limit. If you are using it for a 'severely discharged automobile battery' you may need to reset the charger (as per the instructions)

So I think the answer is yes.
Dec 22, 2013
Reply to Ira Good answer? Yes (1) No (0)
George K: Yes you can charge your car 60-80 Ah battery! You can charge boats, sailboats R.V.'s lawn tractors and any kind of battery! This is the best charger you can get! It doesn't weigh 15 lbs like most chargers. Its portable! I will attach mine to a piece of wood and hang it from a nail on the wall. If I need to take it with I can put it in the BMW tank bag of glove compartment. Dec 22, 2013
Reply to George Good answer? Yes (0) No (0)
Sergiu S: The cover of the instructions manual says 3-50 Ah within 48 hours, up to 70Ah for long term maintenance. I would try an actual car battery charger as it may take a lesser time. Best is to submit your question to Tecmate. Dec 21, 2013
Reply to Sergiu Good answer? Yes (0) No (0)
Barry V: Optimate recommends this charger for batteries up to 50ah. Might be pushing it to go any higher. It works well on my R1200GS, but I use a Battery Tender or Schumacher on my car battery. Hope this helps. Dec 21, 2013
Reply to Barry Good answer? Yes (0) No (0)
carlos a: Excuse me, I never try to charge a diferent battery
I only use in the BMW
Dec 31, 2013
Reply to carlos Good answer? Yes (0) No (1)
A shopper asked: Stupid question but does this charger have to be plugged into a wall outlet to work? Dec 4, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Paul O: I read the product description and it doesen't specify the power source.

I presently have one hooked up to my motorcycle and Yes, it needs to be pluged into a 110v receptacle.

As for it being a stupid question, I believe that the only stupid question is the one you have and don't ask.
Dec 9, 2013
Reply to Paul Good answer? Yes (0) No (0)
Wil S: Yes. Make sure you change the program to Canbus if you are charging a late model BMW. Dec 9, 2013
Reply to Wil Good answer? Yes (0) No (0)
Robert N. S: Yes it is and yes it does. Dec 10, 2013
Reply to Robert N. Good answer? Yes (0) No (0)
brett m: Yes ac power is required Dec 10, 2013
Reply to brett Good answer? Yes (0) No (0)
ROBERT F: Yes Dec 10, 2013
Reply to ROBERT Good answer? Yes (0) No (0)
A shopper asked: I have an Optimate 4 charger. Can I use it on my 2011 R1200RT accessory outlet. Is there a certain procedure I have to follow? Gary Sep 6, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Diego B: Yes. The procedure is, you need to change the system to CAN BUS first, you do this crossing the red and black batery conector.. Lights will blink 5 times faster, 5 times slower and 2 times faster. After this you change the cables and put the BMW type for the CANBus and the system will start cheking everything.
The product comes with a manual where all of this is explain. hope helps.
Sep 18, 2013
Reply to Diego Good answer? Yes (0) No (0)
Alp B: You should be able to. By default this unit comes set-up to charge bmw canbus systems. You simply plug it at the accessory socket. The unit runs some tests and automatically start charging. You don't even have to put your key in the ignition. Sep 16, 2013
Reply to Alp Good answer? Yes (0) No (0)
Frederic T: I bought one from RevZilla and used it all last winter. It comes with a BMW plug and works great. Just follow the instructions and you shouldn't have any problems. Sep 16, 2013
Reply to Frederic Good answer? Yes (0) No (0)
Chet A: I would be concerned about running that power through the accessory plug and the impact on CANBUS . I hooked up mine directly to the battery . Sep 18, 2013
Reply to Chet Good answer? Yes (0) No (0)
brett m: Yes you can. There are instructions contained with the charger to switch from canbus to alligator clips. Sep 16, 2013
Reply to brett Good answer? Yes (0) No (0)
A shopper asked: Can it take in 220V input? Jun 28, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Barry V: I don't really know. Here in America, all of our household electrical outlets are 120 volts.
Perhaps Tecmate manufactures one for the European markets that inputs 220. I would contact the manufacturer to find out.
Sorry I couldn't be more help.
Jun 28, 2015
Reply to Barry Good answer? Yes (0) No (0)
Kurien P: Yes. Picked up a unit from the US when I travelled there and happily using it in the UK. All them units are 110/240 compatible right out of the box. Jun 28, 2015
Reply to Kurien Good answer? Yes (0) No (0)
Gerry C: I believe it is 120 volts Jun 28, 2015
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A shopper asked: Will this charger work with lithium iron batteries? Apr 22, 2015
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ANTHONY G: I don't know that charger?? Jun 8, 2015
Reply to ANTHONY Good answer? Yes (0) No (0)
A shopper asked: I was told that the CANbus on the 2014 BMW R1200GS Adventure (water cooled) has been rewired and 'old style' charger could not be used and might fry the bus. The OptiMate 4 worked on my 2011 Adventure, can I safely use it on the 2014? Jun 1, 2014
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Greg T: This system worked for my 2012 F800R. I suggest you call TecMate to be certain it will work for your 2014 model. This form won't accept a phone number, so go to their website and use the Contact feature. Jun 1, 2014
Reply to Greg Good answer? Yes (0) No (0)
A shopper asked: Can I use it to charge car battery 60 - 80 Ah? Dec 21, 2013
Answer this · Send to friends Good question? Yes (0) No (1)
Joseph S: The Optimate 4 is intended for batteries up to 50 Ah, so if you have
a 60 - 80 Ah battery you may want to go with the Optimate 5.
Having said that, unless the battery is in horrible discharge, the Optimate4
would still work at maintaining the battery, charging would take a lot
longer. Its always safer to go the next step up if there are doubts.
Dec 23, 2013
Reply to Joseph Good answer? Yes (0) No (0)
David H: I don't see any problem with that. The charger tops out at .8 amps so it may take a few days if the battery is in bad shape. Slow charging is better for the battery than a fast charge. Make sure that charger is in the "standard" mode.

disclaimer: This is solely my opinion. I am not an electrical engineer or an employee of Techmate.
Dec 22, 2013
Reply to David Good answer? Yes (0) No (0)