TAMORA FLAT BATTERY "STRANGE"

[PYNEY]

hi all

tried to move the tam today and it has a flat battery
this also happened three weeks ago so i fitted a new battery and all has been ok for the last three weeks untill today
so if its not the battery ? i've had no warning signs that the alternator isnt charging its around 12.9 to 13.2 volts
what could it be ????

any advice please
cheers keith

[shep1001]

PYNEY said:

hi all

tried to move the tam today and it has a flat battery
this also happened three weeks ago so i fitted a new battery and all has been ok for the last three weeks untill today
so if its not the battery ? i've had no warning signs that the alternator isnt charging its around 12.9 to 13.2 volts
what could it be ????

any advice please
cheers keith

Keith, mine goes flat if left for 2-3 weeks. The alarm current draw is enough to drain the battery over this time. I put a new battery on and it still happens.

Andrew

[kcc]

PYNEY said:

hi all

tried to move the tam today and it has a flat battery
this also happened three weeks ago so i fitted a new battery and all has been ok for the last three weeks untill today
so if its not the battery ? i've had no warning signs that the alternator isnt charging its around 12.9 to 13.2 volts
what could it be ????

any advice please
cheers keith

Hi Keith, That still seems a tad low, mine's 14.2 But i've just had a new alternator fitted, befor it went conk it was still charging at 13.6, might be an idea to get a test on it.
Ken.

[darkmark07]

Are you sure that the battery's being charged?

From memory the voltage on my T350 is around 14.4 after starting and drops to around 13.2 after a few minutes...

[PYNEY]

hi shep thanks for helping out ! i keep the car in a secure garage so i dont always have to put the alarm on
so i know its not that , i did take her for a 100 mile run on saturday and today was the first time i went to start her
so it may be what kcc said re the alternator ???

thanks guys

darkmark , thats interesting 14.4 volts to 13.2 i've never had it that high before
i will get it checked out ? could it be anything else ?

Edited by PYNEY on Monday 5th October 19:36

[Targarama]

That magic fuse would be suspect number 1. Then the Alternator.

[T350 Al]

PYNEY said:

hi shep thanks for helping out ! i keep the car in a secure garage so i dont always have to put the alarm on

Edited by PYNEY on Monday 5th October 19:36

It doesn't seem to make a difference with ours whether I arm the alarm or not; after 3-4 weeks sat doing nothing the battery is dead either way!

I know it's not the 100 amp fuse or the alternator as I changed both 2 months ago.

[darkmark07]

Targarama said:

That magic fuse would be suspect number 1. Then the Alternator.

+1 / This / What he said and so on...

[Targarama]

T350 Al said:

PYNEY said:

hi shep thanks for helping out ! i keep the car in a secure garage so i dont always have to put the alarm on

Edited by PYNEY on Monday 5th October 19:36

It doesn't seem to make a difference with ours whether I arm the alarm or not; after 3-4 weeks sat doing nothing the battery is dead either way!

I know it's not the 100 amp fuse or the alternator as I changed both 2 months ago.

Going flat through not being used won't be the fuse. Its a battery or drain problem.

[PYNEY]

targarama ! magic fuse would this be the 100 amp ??

if so where can i find it on my car

cheers keith

[SP6 Animal]

Underneath the airbox

[T350 Al]

Targarama said:

T350 Al said:

PYNEY said:

hi shep thanks for helping out ! i keep the car in a secure garage so i dont always have to put the alarm on

Edited by PYNEY on Monday 5th October 19:36

It doesn't seem to make a difference with ours whether I arm the alarm or not; after 3-4 weeks sat doing nothing the battery is dead either way!

I know it's not the 100 amp fuse or the alternator as I changed both 2 months ago.

Going flat through not being used won't be the fuse. Its a battery or drain problem.

Forgot to add that I changed the battery at the same time! To be honest, it's something we got used to happening so bought a trickle charger that we use when the car isn't being used and we make more of a concious effort to take the car out more often!

[PYNEY]

hi all

jump started the tam tonight from the anderson connector

started fine and i took her for a run, alternator showing 13.0 volts max and when engine ticking over only 12.5 volts

because she started does this mean that its not the 100 amp fuse ?

if its the alternator ? my tvr garage has offered me a recon unit £180 + labour which seems alot for secondhand
online i see you can buy a new unit for £140 lucas to £230 so what alternator/make would be my best buy quality / price ?

the tam goes in on thursday so advice please ! what would you do, recon or new

[T350 Al]

The car will still start, regardless of whether the 100amp fuse is there or not. Your voltages sound low, roughly what I was getting when my 100 amp fuse went.

Alternator prices vary from place to place; Power are pretty reasonable if memory serves. A recon unit should be fine; it's pretty rare for the units to fail in the first place so no reason why a quality recon shouldn't last.

Edited to say, if you were near Bristol you could have had my spare alternator for 100 quid!

Edited by T350 Al on Tuesday 6th October 21:29

Edited by T350 Al on Tuesday 6th October 21:31

[PYNEY]

T350al

thankyou for the advice, so it looks like it could still be the fuse then !

cheers keith

[PYNEY]

hi all

just to give you an update and conclude on my flat battery

took the car to tvr barnet today and it turned out to be a faulty alternator

also replaced the 100 amp fuse to a 125 amp ceramic upgrade and the fuse under the car matt

well done to tvr barnet

and thankyou to all of your comments and help cheers pistonheaders

keith

[darkmark07]

PYNEY said:

hi all

just to give you an update and conclude on my flat battery

took the car to tvr barnet today and it turned out to be a faulty alternator

also replaced the 100 amp fuse to a 125 amp ceramic upgrade and the fuse under the car matt

well done to tvr barnet

and thankyou to all of your comments and help cheers pistonheaders

keith

Glad you got it sorted mate!