So that's why the charger thinks it's a six volt that won't hold a charge...

"Battery Tender Unnecessary" (carac)
03/09/2016 at 15:34 • Filed to: None

I’ve got a date with some baking soda and a wire brush tonight. Also, FYI the explosive bolt positive terminals on an E39 cost $400 for the OEM part alone...then you get to thread it the length the car through the trim into the engine compartment.

DISCUSSION (9)

crowmolly > Battery Tender Unnecessary
03/09/2016 at 15:37

Wow, somebody was nice enough to leave you some cotton candy.

HammerheadFistpunch > Battery Tender Unnecessary
03/09/2016 at 15:38

pour a little Coke on it, stand back and be amazed.

Battery Tender Unnecessary > HammerheadFistpunch
03/09/2016 at 15:40

I did, some coke zero...I didn’t drink the rest of the bottle after seeing the results.

HammerheadFistpunch > Battery Tender Unnecessary
03/09/2016 at 15:42

Right?! Scary effective. Chemistry for the win.

Sweet Trav > Battery Tender Unnecessary
03/09/2016 at 15:42

So, maybe the battery tender was necessary?

Battery Tender Unnecessary > Sweet Trav
03/09/2016 at 15:55

May have been too effective, bad battery + a tender means it’s constantly trying to reach a point if chemically can’t, accelerating the corrosion. More troubling is that the previous owner went for a battery that was the correct spec technically but the wrong size for an E39 M5. So there was cardboard folded to shim the battery in the enclosure.

uofime-2 > Battery Tender Unnecessary
03/09/2016 at 16:14

mmmm carbonic acid

BmanUltima's car still hasn't been fixed yet, he'll get on it tomorrow, honest. > Battery Tender Unnecessary
03/09/2016 at 21:52

This is on an E39?

Doesn’t look anything like the battery compartment on mine.

Battery Tender Unnecessary > BmanUltima's car still hasn't been fixed yet, he'll get on it tomorrow, honest.
03/10/2016 at 14:27

Yeah, M5. The battery compartment is in the middle of the trunk since there’s no spare tire.