As title folks......wr1 had a new battery 2 weeks ago , all fine til tonight.

Just tested it whilst running.....12.4v on tick over and revs , now the strange bit .........put sidelights on on dipped beam......14.6 v???

Why would putting the lights on up the volts on the battery
Would of assumed it would be the other way round 14 running dropping down when load put on

Any advice would be much appreciated

Mods please leave here and not move.....seem to get more help

 

The charging system is designed to charge when there is a load on the battery. So leaving lights on will charge the battery better than driving with them off.

 

Car won't start without being jumped , it's like a flat battery as in really slow to turn over and alarm trying to go off

 

As musso2010. Alternatator only puts charge back in to battery when it detects a draw from the battery - some electronic gismo. That's why if you run short trips, during the day in the summer with no lights, heater etc, you can flat the battery. Just make sure you regularly during the week put a load on the battery to keep it healthy - sidelights as you have discovered are a good way.

James

 

sounds like a dud battery to me take it back for an exchange then try it again

 

Cheers lads....tbh the car is doing a 3 mile drive then locked up for 8hrs , then back home 2/3 miles

Will try the lights for a few days

If anyone has anymore ideas feel free to stick them up

Thanks again

 

First job on the list in the morning......for peace of mind mainly

 

I wouldn't worry!!

 

+1

 

get a bike and pedel that distance! unless you NEED the car.

 

What........jump start it everyday , there's something not right as in foooooooked battery or as stated the short trips are killing it

 

No need for that kind of talk Fooooookin push bike

 

Jump start everyday is not good!!

Short journeys aren't good either!!

If the alternator is charging above the voltage capacity of the battery then you have no problem!!

You either have a fooked battery or a serious drain,

without a multimeter i couldn't tell you