TecMate OptiMate 4 Dual Program Battery Charger for BMW CANbus
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
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
I was looking for a charger that would work with my CanBus system and after looking into BMW chargers that were over the top on price I found this little gem that works out perfectly.
April 9, 2015
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
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
Easy to use, complete directions, works great on my 2013 BMW F800R(CANbus)and my 1975 Yamaha RD350.
December 8, 2014