Flat battery, any ideas ?

Post by **paulp** » Mon Oct 31, 2022 10:44 pm

Went to start car up today & battery was flat, haven't used it since the 16th, but it has a new battery on it, & not had this problem before when its stood for several weeks, so batteries on charge now, but any ideas why it should go flat ?

Post by **Micron** » Tue Nov 01, 2022 8:05 am

Hi Paul,
Did you get any lights on the dash but nothing else?
It might be the boot light staying on, or the interior light being left on for some reason?

It will drain, but it shouldn't that quickly.

Post by **mojo98** » Tue Nov 01, 2022 10:26 am

Cant remember what year your car is, but the early models had a engine light under the bonnet, that sometimes stays on, if its a early model remove the blub, it's useless anyway.

Post by **cpt black** » Tue Nov 01, 2022 2:59 pm

Do you use the car alot

,once running check the voltage from the alternator
should be up to 14.v/14.5 if your alternator is giving a good charge to your
battery

Post by **Incognito** » Tue Nov 01, 2022 7:05 pm

If nothing is obvious, just disconnect the earth off your battery each time you park up,at least that'll determine if the new battery is iffy or something draining it.

Post by **paulp** » Tue Nov 01, 2022 9:22 pm

Thanks for the tips guys, my car is a 1997 model 24v. I charged the battery overnight & took it to local garage who has a fancy electronic battery tester, & he said the battery was good & had about 90% charge in it. Unfortunately i didn't finish work until it was dark today so haven't had chance to put it back in the car yet, but should get the chance tomorrow, when i'll check the interior light & the one in the boot, hopefully it'll be one of them & then the mystery will be solved. It's going to Rustbusters on friday to be treated & will be standing next week until the friday when i can pick it up again so hopefully this will be sorted.

Post by **paulp** » Tue Nov 01, 2022 9:23 pm

cpt black wrote: ↑
Tue Nov 01, 2022 2:59 pm
Do you use the car alot ,once running check the voltage from the alternator
should be up to 14.v/14.5 if your alternator is giving a good charge to your
battery

I have checked the dial in the dash whilst driving & it sits about central so i believe that's in the normal charging zone.

Post by **paulp** » Wed Nov 02, 2022 3:20 pm

Managed to refit the battery today & guess what, the interior light was on

, schoolboy error i'm afraid, but at least i found out the reason, one thing i did notice when refitting the battery, was the battery holder was full of water & i wondered if it was ok to drill a drain hole, anyone done this ?.

Post by **Micron** » Wed Nov 02, 2022 3:21 pm

paulp wrote: ↑
Wed Nov 02, 2022 3:20 pm
Managed to refit the battery today & guess what, the interior light was on , schoolboy error i'm afraid, but at least i found out the reason, one thing i did notice when refitting the battery, was the battery holder was full of water & i wondered if it was ok to drill a drain hole, anyone done this ?.

oops

As they say, every day is a school day

As for a drain hole, just be mindful as to where you drill, you don't really want to drill through any metal

Post by **cpt black** » Thu Nov 03, 2022 4:32 pm

Good news its sorted

easy fix

UKPOC forums

Flat battery, any ideas ?

Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Re: Flat battery, any ideas ?

Who is online