E92 m3- trickle charger?
Discussion
I do very few miles in my m3 and as such it's killing the battery, to the point where I start to receive the warning 'increased battery discharge' bmw say there is no problem with the battery and it doesn't need replacing.....but will do if I keep running it down with short journeys.
They have recommended I get a trickle charger to keep it topped up. I've never used one of these before, they seem quite cheap but on the face of it a ball ache to use, requiring battery removal.
Anyone have any experience of trickle chargers and can recommend an easy to use decent one?
They have recommended I get a trickle charger to keep it topped up. I've never used one of these before, they seem quite cheap but on the face of it a ball ache to use, requiring battery removal.
Anyone have any experience of trickle chargers and can recommend an easy to use decent one?
Used one of these for years on my previous cars. Plugs in to 12v socket if its constant live or has croc clips. No need to remove battery.
http://www.accumate.co.uk/accumate.htm
http://www.accumate.co.uk/accumate.htm
I had exactly the same problem with my M5, only driving it once a week or so. I got the 'battery discharge' message also.
I bought another battery online just incase winter comes and it needs it.
Now I connect a motorcycle 'battery tender' every Sunday and have not had a single problem since.
I bought another battery online just incase winter comes and it needs it.
Now I connect a motorcycle 'battery tender' every Sunday and have not had a single problem since.
You dont need to disconnect the battery. When you buy a battery tender for motorcycle it comes with an end with clips to attach to the battery. Attach them to the battery in the trunk and leave the end sticking out from underneath the trunk, into the trunk. Then once a week open the trunk, connect the end to the cable and you are good to go.
malman said:
Used one of these for years on my previous cars. Plugs in to 12v socket if its constant live or has croc clips. No need to remove battery.
http://www.accumate.co.uk/accumate.htm
Been using an Optimate for ~10 years without issue, as said already, no need to remove or even disconnect battery. Thinking about it, the battery in my M3 is ~10 years old and still going strong.http://www.accumate.co.uk/accumate.htm
A few friends are using Ctek chargrs, and they seem to work just as well.
malman said:
Used one of these for years on my previous cars. Plugs in to 12v socket if its constant live or has croc clips. No need to remove battery.
http://www.accumate.co.uk/accumate.htm
This looks especially good. Cheers.http://www.accumate.co.uk/accumate.htm
The best option by far and the bit of kit most of the M3Cutters (including myself) use is the Ctek MXS 5.0.
It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
t8cmf said:
The best option by far and the bit of kit most of the M3Cutters (including myself) use is the Ctek MXS 5.0.
It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
Many thanks for the extra info....great stuff.It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
t8cmf said:
The best option by far and the bit of kit most of the M3Cutters (including myself) use is the Ctek MXS 5.0.
It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
Yes, this is what I do, it's really easyIt comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
Mine's always on trickle charge when it's in the garage, as it is only used for holidays/days out (c.4k miles/year)
I've never had any battery/starting issues, so it must be working a treat
t8cmf said:
The best option by far and the bit of kit most of the M3Cutters (including myself) use is the Ctek MXS 5.0.
It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
Bought one and connected this weekend as you said.....absolutely superb. Many thanks for your help,It comes with croc clips and a permanent ring attachment which you bolt to the car.
A word of advice, DO NOT attach your charger directly to the battery as it confuses the Intelligent Battery Sensor (IBS). Bolt your ring attachment to the under bonnet terminals, the positive one is on the rear bulkhead of the engine compartment under a red cap and the negative terminal (also under the bonnet) is located just inside the drivers wing near the front of the car. Its a hexagonal stud with a threaded centre to bolt your lead adapter to. The ring adapter provides a quick release system / connection for your charger.
It takes me about 5 secs to plug my charger in.
Hi guys. To t8cmf, how would you go about retrofitting a trickle charger in the boot, by which I mean putting a 12v socket in to the right trim (which covers the battery) and connecting that to the battery so all you would have to do is plug in the trickle charger to the socket which would charge the battery as my bonnet on my m3 e92 would hit the garage roof if opened
Many thanks
Many thanks
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