Hello Friends,

I want to use a battery tender on my 528i, but I live in a apartment community that doesn't have power outlet in the parking lot, Any suggestions please?

Thanks a lot

 

A reeeeally long extension cord.

I'm being serious.

 

No way

 

What about a solar tender? BMW had one for a while in theory, but I think it was very expensive and basically it didn't exist because you couldn't buy it anywhere. I assume there are aftermarket ones now.

Are you storing a car for months or weeks at a time? Is removing the battery and tending it inside an option?

 

021-1163

There ya go. They also sell at 10-watt and 15-watt version for more $$. Deltran used to make the OEM BMW tenders.

 

I have used a 5 watt solar tender for years now. Sost about 20$ at Canadian Tire.

 

way

 

Were it me, and trust me, as I've been divorced once, so I know a thing or two, I would skip all the hippie BS about solar panels and extension cords, and go directly for the simplest, most common sense route. Honestly, I dare anyone to defy my logic, as it just makes sense, and is the best answer. Go to Lowes, and buy yourself a gas powered generator and a set of holesaw bits. (I'm assuming you already own a cordless drill, if not, buy one of those too). Mount the generator in your trunk (E60s have huge trunks so this shouldn't be a problem). Take the holesaw bits and drill a few holes in your trunk lid. Most will be to keep the toxic fumes out of the cabin, but one will be to pass a 10' extension cord out of (oops, pick that up at lowes as well). You'll want to bolt the generator down. I recommend self tapping screws, and don't worry about puncturing the gas tank, as they rarely leak from the top unless you flip the car, in which case, you have bigger problems and need to start a new thread. So now you have the gen mounted, ventilation and cord holes in your trunk, it's time to crack a beer because you are 90% done with this simple project and about ready to make everyone around you envious. So now simply run that new cord out of the trunk, up to the front, and plug in your battery tender. I know, I know, at this point you're thinking "it's so simple, why didn't I think of this", but relax, genius ideas like this are YEARS in the making. Fire the generator up with the knowledge and security of knowing that with nothing more than carting a can of gas out to your car every few hours, you have guaranteed that your battery will be in tip top shape, with no cumbersome solar panels or long extension cords. Heck, leave it running while you drive to save on alternator wear! You're welcome.

 

^ +1

You could even run a shaft to the front wheels, and all you need to so is install the front axle from all wheel drive e60 and you can run your car with the generator. You can go up against the P1 with that thing. hek you could even do this

 

This is actually a pretty good idea and a viable option.

P.S. Please excuse the snarky answers you received.