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TecMate OptiMate 4 Dual Program Battery Charger
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TecMate OptiMate 4 Dual Program Battery Charger

The TecMate Optimate 4 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.


  • Program 1 (default setting on this model) desulfates, charges, tests and maintains the battery
  • 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 5 possible results from ‘good’ to ‘bad’
  • Size 8 x 3 x 2 ½ inches (200 x 75 x 61 mm)
  • Weight (packaging 2lbs (3 lbs) – 0.9kg (1.3kg)
  • 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-71 weatherproof fused ringlet set
  • SAE-74 clamps set for bench charging


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TecMate OptiMate 4 Dual Program Battery Charger 4.7 5 44 44
I store my Ducati S2R in a non heated shed and believe the weather to be a major factory in my batteries drain. Living in NYC I put the bike recommend Highly recommend after sitting for 2 months in a cold shed. Started up stron just after a 2 hr charge February 16, 2015
Must have for BMW bikes with CANbus. Very easy and intuitive to use. Plug and play. My BMW owners manual suggests putting your battery on a charger if the bike sits for two weeks or longer. Also, I love Revzilla's customer service and product follow up. Perfect compatibility with my 2015 RnineT. March 9, 2015
Good Charger The instructions are a bit hard to follow and I had to go back and read them a few times while using the charger. There is a battery save, battery charge and battery maintenance in addition to testing modes. Each of these modes will apply voltage at three different rates depending on the condition of the battery. After using it on one battery I started to understand how it functioned and when I moved to a second battery it all made sense. Turns out the first battery is showing the beginning stages of going bad which I suspected but I would not have gotten the whole picture without watching the charger work on a good battery. At the end of the day the charger performs as stated but the instruction could use work. December 15, 2014
Good product for new CANBUS BMW's I have this battery charger plugged into the onboard power socket on my 2014 R1200 GS. I periodically monitor the operation of this charger as to it's indicator lights and it is functioning properly. I have not started the bike since we are in the dead of winter. I expect this charger to have properly maintained the battery over this extended down time. January 26, 2015
Optimate 4 Function is Very Confusing I bought the Optimate 4 mainly to charge a 2014 BMW R1200RT. When properly programmed (and this is very difficult and confusing) it performs as described. However, instead of having a switch to change from standard charging to canbus charging, the unit must be grounded out, plugged in and observed for a number of LED's to blink a number of times and then verify which set of LED's remain on to determine the mode of the charger. This process must be reversed ungrounded to change back to standard charging mode. I still get confused which mode the unit is in and must consult the manual routinely. Surely there must be a better unit on the market. January 6, 2015
great CANbus charger I bought this charger for my BMW after my battery tender gave out after years of faithful service. I was attracted to this charger in that it would charge via the CANbus port on my BMW, but didn't come with the traditional BMW parts price premium. The charger arrived right on schedule (in typical Revzilla fashion) and I plugged it into my bike. The LED sequencing for the different charge intervals is a little inscrutable, but after decoding the LED sequences by reading the manual a couple of times I convinced myself the charger was working as advertised. I have used the charger for several months now and it works great. I am very happy with the charger. It is much more than just a trickle charger, it maintains and diagnoses your battery. The LED sequences associated with the various diagnostic and charge modes are baffling, but once you get your head around the sequences you can always see at a glance what the charger is doing to your battery. And I love just having to plug the charger into my CANbus port after a ride. January 6, 2015
Great product! Easy to use, complete directions, works great on my 2013 BMW F800R(CANbus)and my 1975 Yamaha RD350. December 8, 2014
Does everything well, and for less If you have a newer BMW using CanBus, you know the difficulty of finding an easy charging option, and the cost of the OEM charger. This charger does everything the OEM charger does, plus more, and you save a $100. It's hard to beat that. December 8, 2014
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TecMate OptiMate 4 Dual Program Battery Charger
Already Asked: 3 Questions, 19 Answers
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RevZilla Store asked: Why did you choose this?
Richard B: Get the old one going, keep the new one going!! Feb 20, 2015
Thomas K: Seemed to be the best - offered advanced battery conditioning capabilities. Feb 3, 2015
Ron S: it works wonderfully with my beemers Jan 29, 2015
Curtis G: Friend recommendation and good pricing. Free shipping never hurts. Jan 19, 2015
Floyd J: I wanted the best charger to extend the life of my battery. Sep 28, 2014
Craig S: I bought this for my Triumph Tiger 800 ABS. Worked out perfectly for the winter with the bike stored in our garage. Directions were a bit confusing though...would be nice to have a how-to video on the site. Jun 6, 2014
Peter L: Past experience, good product Dec 2, 2013
Product Style RevZilla Item # Manufacturer Product # Availability
TecMate OptiMate 4 Dual Program Battery Charger 869386 TM241 In Stock: Ships within 24 hours