Battery problems

[Nic M]

Hi every1, I dont use my car a lot at the moment, last week I went to start it after not driving it for about a week and a half or so. The battery was dead, absolutely dead, even the alarm L.E.D wouldnt flash.

I jump started it and checked the charging voltage - 14.7Volts! isnt that abit high? I thought it may be the regulator had gone but when i rev it the voltage stayed constant.

I took it for a long drive when i got back checked the charging voltage again, this time 14.2ish Volts, a bit lower but still seems slightly high whats normal any1?!

The battery is holding charge now, about 12.5V and it starts now so i think its charging ok....

 

[Tom]

no i think thats ok

 

[SteveJJH]

I had a similar problem this morning. I think it might be the time of year. I do a lot of short journeys at the moment, most of the time with the lights, stereo, heated window and fan on, so the battery doesnt really charge.

 

[adiclio16v]

yeh thats about right between 13 to 14.5 ish when running depending on what elec items uve got on

adi

 

[Ben H]

My mate just disconnects the battery from the car and re-connects it again when he uses it. Saves a lot of hassle, but make sure if youve got a Cat 1 that you disengage it first!

 

[Nic M]

Cheers every1, it seems to be running fine now ill just hope it makes it through winter!....

 

[cliocup]

Yep, 14.7 volts is fine for your alternator output.