Battery Charger/Centech

[reimerdavid]

I have installed a Centech Fuse block on my RT and used the back accessory plug hot wire to power the relay. All is well with the exception of this. I use the BMW battery charger plugged into the back accessory plug and now get a red light "Error" after an hour or two, this never happened before the fuse block was installed. I now have the charger plugged into the front accessory plug and I'll what to see what happens now. anyone ever hear to this ?

[Semper_Fi]

I have noted that the plug in accessory charger is very finiky.

I can see what you did casuing you that failure, as the computer senses the battery charger connector it will use it to charge the bike, with the centech attached on the side for the trigger it may sense a wrong resitance value or current and does not allow the charger to work there by the charging showing the red light.

I had a modified accesory socket on my RT and it woudl not work (always a red light) the final solution was tying in the battery charger directly to the battery.

On my GT I have an unaltered Accesory socket and the charger works fine.

[Polarbear]

Straight to the battery. Its so much simpler:). I have the same charger and never go around the battery, through another port. Randy:thumb

[RTFlyer]

Seems odd though. The relay shouldn't have any effect:scratch

Anyway, if the front plug works, there's really no issue anyway, is there?

[reimerdavid]

I just checked the bike. The front accessory outlet with the BMW charger is working fine. I now wonder if the back outlet is of any use at all with the Centech fuse block drawing power for the relay ??? Thanks for the feed back

[RTFlyer]

I just checked the bike. The front accessory outlet with the BMW charger is working fine. I now wonder if the back outlet is of any use at all with the Centech fuse block drawing power for the relay ??? Thanks for the feed back

Here's my completely basic understanding of it...

Your Centech Fuse panel is drawing current from your battery, not the relay. The relay only senses current going to that rear accessory outlet and either makes or breaks the high current circuit from your battery to the switched circuits on your Centech. The relay draw is extremely minimal in order for this to work.

[reimerdavid]

Checked on the bike today and the BMW charger is showing red "Error" with the unit plugged into the front accessory plug. Damn the Can-bus system. I'll have to use a Battery Tender and go direct to the battery. I don't know why the BMW unit is shut down by the Can-Bus from the front accessory plug.

[Semper_Fi]

You do not have to get a tender - since you spent the money on the BMW charger you can still use it.

I had the same issue and went direct to battery.

The Accessory male end can be disassembled and you cut of the wires off the posts, then buy a water proof male-female pigtail from the autoparts store.

Connect one end to the battery, connect the other end to the bmw charger where the male connector was.

You're done.

I think I have the information somewhere of how I did it, if you are interested I will look it up and provide it to you.

Let me know.

Luis

[marchyman]

You do not have to get a tender - since you spent the money on the BMW charger you can still use it.

:nod

I did something quite similar. Since I have an SAE connector going to the battery (currently through a Fuzeblock, although that is irrelevant) I removed the BMW end from the smart BMW charger that came with the bike and hooked another SAE connector to it. Just have to make sure you get the polarities correct.

I used some wire nuts to connect a spare SAE pigtail to the end of the charger. No cutting needed. I can always put back the BMW/Powerlet plug if I ever feel the need.

Yes, the smart charger came with the bike. Yes, that means I probably paid too much for the bike. :banghead

[Semper_Fi]

Heres the connectors I used

http://i293.photobucket.com/albums/mm43/Semper_Fi_LR/DSC04007.jpg

These are the part numbers

http://i293.photobucket.com/albums/mm43/Semper_Fi_LR/DSC04011.jpg

[TomfromMD]

Checked on the bike today and the BMW charger is showing red "Error" with the unit plugged into the front accessory plug. Damn the Can-bus system. I'll have to use a Battery Tender and go direct to the battery. I don't know why the BMW unit is shut down by the Can-Bus from the front accessory plug.

This happens on my '06 about 20% of the time. Have you tried turning the ignition on for about 10 seconds? - That generally works for me.

Tom