Maverick1975

I have left my CLK63 BS out in the country for a while, taken the car cover off and battery flat, can we jump start these guys with jumper leads? Anyone help?

GeorgeSmooth

I have jumped my C63 on several occasions with no issues.

Overspooled

+1

estrellajon

Of course. You can even choose either side of the car

Critter

In an emergency I would say yes go ahead and boost the car, but if you have time remove the negative battery terminal and connect the battery to a charger, if inclined remove the battery from the car and charge it that way just in case of any shorting out of the cables within the trunk or under the engine cover depending on model. When away try a battery maintainer in the .75 amp range, will keep the battery fresh.

m a x i m u s

excuse my ignorance, but is there a reason why we couldn't jump start the battery?

tfthach13

Because sometimes if the surge of voltage is too high it will short out the electronics. Seeing how our cars depends on a lot of electronics it may not be a good idea. However, it worked fine for some people.

Always use a battery maintainer if possible when storing your car for a prolonged period of time.

Critter

You beat me too the answer tfthach13, some will just hook up to a dead battery with a vehicle that is running which besides the surge could be enough spark to ignite gases around the battery, or the driver could hook up the cables incorrectly and short out the battery, cause an explosion and be blind for the rest of their lives. So not being too dramatic if you have to ask do not jump any car unless you are confident doing so. A dead battery is a giant resistor, remove from the car and charge it using a proper charger, again in an emergency be very cautious.

Maverick1975

Jump started, all good, everything works fine, thanks or the advice fellas

Skyline 123

Jump start it with the other car switched off the voltage will not jump that way

shades

Just jump start where it's supposed to be and you'll be fine. Two terminals made for this in the engine bay. The positive has a red cover and the negative is close two the coolant reservoir

estrellajon

+1. Unsafe batteries were back in mid 80's and older

jvanbrecht

Soo much misinformation...

Yes, you can jump the car, no it will not destroy the electronics. Between the battery and pretty much everything, are voltage regulators. This will prevent surge scenarios from doing any damage.

At most, you can damage your battery by connecting the terminals directly to another battery. When jumping, positive to postive, negative (source) to grounded chunk of metal (destination).

In older cars, using a smaller battery was problem, insufficient current to crank the starter and poor voltage regulation caused problems. In our cars, the car just won't crank. I had that problem when the airport sent a V6 pickup (even though I specified a V8). Took about 20 minutes before my battery was charged enough to turn over.