Trickle Charging - Engine bay or on the Battery

[nyslc93]

Did a quick search but no definitive answer to this. I know that you're supposed to jump the car from the terminals in the engine bay, but what about hooking up a trickle charger? Should this connect in the engine bay or to the battery itself?

Thanks!

[Nash_TDI]

I don't think it would matter. I have a few of them. Keep meaning to get the cigarette lighter adapter for convenience.

[MacFady]

Likely doesn't matter, I personally always charge at the battery.

[kpop]

I've got my RS4 connected to the tender via the engine bay jumper posts. Did the same with my M3 and never had any issues.

[ven0m]

Did a quick search but no definitive answer to this. I know that you're supposed to jump the car from the terminals in the engine bay, but what about hooking up a trickle charger? Should this connect in the engine bay or to the battery itself?

Thanks!

Doesn't matter as it's the same circuit and low amperage pull.

[993140]

Since new (11/2006), I have been maintaining the battery by plugging into the 12V accessory (cigarette lighter) receptacle in the center console. My original battery lasted exactly 10 years.

[TypeRx]

I have a pig tail adapter (CTEK) directly connected to the battery. I have it terminate just outside of the carpeted flap/cover in the trunk. I can easily hookup the trickle charger there and close the trunk as the cable is thin enough to not interfere with anything.

I only trickle my RS4 here and there...most of the time I have the trickle charge set on my Porsche because it eats through batteries unlike the RS4.

As an aside, I finally changed my stock RS4 battery (mfg in 12/06) about 6 months ago. I wasn’t having any battery or cold start problems but figured I should get ahead of it before I got stranded somewhere. Amazing how long the Bosch OEM AGM battery lasts! Oh, and I never trickled it until about a year ago.


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[musanoadsaba]

OEM is a Varta made by Johnson Controls. Did you have a Bosch in your car?
Re charging, I go direct to battery as I want the most current I can get to charge my Odyssey.

[TypeRx]

OEM is a Varta made by Johnson Controls. Did you have a Bosch in your car?
Re charging, I go direct to battery as I want the most current I can get to charge my Odyssey.

Oh, maybe it wasn’t Bosch...don’t remember. I probably just assumed that. But it was the original mfg battery for sure.


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[your daddy]

mine has a hardwired pigtail direct to the battery. port goes under car for a quick connection.

[MattboyR32]

Mine is connected to the battery in the boot.


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