Voltage required to start a Tamora
Voltage required to start a Tamora
Author
Discussion

5yearstobuyatvr

Original Poster:

788 posts

248 months

Tuesday 3rd June 2008
quotequote all
Ive just bought a set of anderson leads for the battery connector, I either have a battery problem or another starter motor jam, not sure which. Anyone know what voltage required to start up, charge shows 12.3 volts before turning the key.

Fume Troll

4,389 posts

241 months

Wednesday 4th June 2008
quotequote all
12.3V is a little low, you should really be getting 12.6+ V for a battery in 100% condition.

The lower voltage could indicate the battery performance is dropping off, or it is just not fully charged. This doesn't mean your car won't start though, but it may turn over a little slower and make starting more difficult.

Note that estimating battery condition from voltage relies on fully charging it and then letting it rest for a few hours before measuring the voltage.

Cheers,

FT.

grumbledoak

32,571 posts

262 months

Wednesday 4th June 2008
quotequote all
My T350 has started with an indicated 9V yikes
It had been a while, and I took her for a long spin afterwards.

So, I'd say not starting at 12.3V indicates something else is up with her.

Targarama

14,785 posts

312 months

Wednesday 4th June 2008
quotequote all
You need sufficient Amperage to crank the engine and start the car.

Have you checked the infamous 100A fuse inline between the alternator and battery?

5yearstobuyatvr

Original Poster:

788 posts

248 months

Sunday 8th June 2008
quotequote all
My good friend the RAC man has sorted the problem and my car starts first time.To cut a long story short he tested the battery and discovered that when I tried to start her the 12 volts in the battery was dropping to 3 volts, when turning the key. He found a bad earth between the engine and chassis.Cleaned the terminal.and problem solved.