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My 2003 9-5 garage queen had an oil change appointment today and of course refused to start (have not started it for a few weeks. So, I thought about using my trusty http://store.schumachermart.com/ps-420ac.html booster battery thing and the 'you have connected the thing backward" alert came on on the booster thing. The thing clearly says:
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6. Clamp the red clamp (+) to the positive terminal of the battery. (For a negative grounded system.)*
7. Clamp the black clamp (-) to an unpainted and unmoving part of the chassis or engine block.
8. If you have connected the clamps of the Portable Power Jump-Pack backwards, an audio alarm will sound. DO NOT turn your Portable Power Jump-Pack on. This could cause serious damage. Reverse the connections, and the audio alarm will stop.
: : : :
*NOTE: In the rare case of jump-starting a vehicle that has a positive-grounded vehicle electrical system, connect the NEGATIVE black clamp (-) to the negative terminal (-) of the vehicle battery. Then connect the POSITIVE red clamp (+) to an unpainted and unmoving part of the vehicle chassis or engine block. If you are unsure of the nature of the vehicle’s electrical grounding system, check the owner’s manual of the vehicle. To disconnect clamps, reverse order.
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I of course disconnected the thing and that was that. I checked the manual of the 9-5 and it does say it is negative ground (p190).
So, do I just jump start it with its room-mate (my 1995 900S) which hopefully is negative ground too?
The battery on the 9-5 is 5.5 years old, and the car has very low miles (23k). Am I better off just dumping the current battery altogether and putting a new battery in? I usually get 4 years off my 900's battery...
Thanks!
ST
posted by 71.65.46...
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