Question about Smart Cars & Trucks
I am not sure how to hook them up being I have never replaced batteries. Can anyone offer some assistance? Thank-you
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Posted on Jan 02, 2017
SOURCE: 24 volt charging problems .2
A 12 volt battery is actually 13.2 volts fully charged. If you are reading 16 volts, you are probably getting extranious voltage from the system somewhere, especially if the vehicle is running when you check the voltage. The alternator will put out about 15-18 volts to charge the battery normally, and yours may put out 28-32 volts to charge them in series, but the batteries, when disconnected, should never read more than about 13.2 volts each. Typically, it will read about 12 1/2 volts when disconnected. COMPLETELY DISCONNECT BOTH OF THE BATTERIES. If you still read 16 volts when it is disconnected, you must have a bad meter because the battery can't produce that much voltage, no matter what. (Six 2.2 volt cells connected in series inside the case.) Put the meter on a known good battery on another car that is not running and see if you get the same reading. It sounds like the other battery is almost dead, regardless, and it sounds like your series/parallel switch may be malfunctioning. (That is the switch that puts the battery in series to run the 24 volt starter, then puts the batteries in parallel to run the remainder of the vehicle on 12 volts. This is all assuming that you have a diesel vehicle with a 24 volt starter and that is why you have two batteries.
Posted on Aug 19, 2008
Check the drive belt tension and wiring connection at the alternator and at the battery. Check for a blown fuse in the fuse block . -hope this helps
Posted on Feb 24, 2010
SOURCE: I'm trying to install a
Hi and welcome to FixYa, I am Kelly (Electrician since late 1960's)
Ground goes to the - pole. Hooking it up backwards can damage your alternator, wiring harnesses and fuse links. (Fuse link damage is a nightmare to sort out!) What you do by hooking up a battery backwards is turn your vehicle wiring harness into a giant heating element. (<-Very bad!) If you just changed the battery and then you hooked up the cables with the smoking cable result you certainly did connect the cables backwards. The ground cable... will connect to chassis and in most cases the engine body / transmission somewhere.
The positive cable will eventually connect to the starter. Follow the ground lead from the battery to the chassis or engine body connection. (metal to metal contact) Once your sure that is the ground cable; connect it to the - post of the battery AFTER connecting the positive post terminal.
If you have a newer audio system you will have lost your radio codes. We can not provide the codes for anti-theft reasons. Activation Codes must be from the car dealer or audio system retailer.
Thanks for choosing FixYa,
Posted on Feb 27, 2011
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