Hi,

The battery on my Subaru is flat, can I charge it up with the battery still connected or do I need to disconnect it from the car first.

Please help........its a long walk to work!

Cheers.

 

depends if you trust your charger!

If it's a cheepo jobbie, bear in mind it may not filter out any voltage spikes and fry an ECU (airbag, engine, ABS, radio etc etc.)

If it's properly regulated then you have no problem.

 

ALI-B

It's one of those one's that cuts out when fully charged and switch's back on if the charge falls again, cost about £30.

Cheers.

 

Un plug it, better safe than sorry (as they say). 10mm (IIRC) spanner and about 30 seconds.

 

I always thought it was safest to remove battery (or at least disconnect from the car) for charging & from what I remember as it's been a long time since needed to do this but, you're supposed to open the covers on the cells while charging.

Den

 

Guy's

Problem is if I disconnect the battery the alarm will sound.

cheers.

 

Most Alarms should stop sounding after 30 seconds when the battery is disconnected.

 

Most alarms will have an override so that you can completely switch it off before you disconnect the battery. This may be a key jobbie on the siren unit if it's a cheap alarm or a combination of keys to press on the remote control if it's a more expensive one like a Clifford.