Drain current on battery
Drain current on battery
Author
Discussion

350Matt

Original Poster:

3,849 posts

300 months

Tuesday 20th January 2009
quotequote all
Chaps

whats a reasonable level of current drain for a car at rest , ignition off, alarm on etc

I would expect about 120M-300Ma? Is this right?

annodomini2

6,959 posts

272 months

Tuesday 20th January 2009
quotequote all
Depends on the car and how old?

350Matt

Original Poster:

3,849 posts

300 months

Tuesday 20th January 2009
quotequote all
Well say on a mid 90's rover?

I could always measure my TVR I suppose

I measured a 01 plate BMW 5 series and that was 310Ma but then he was having discharging problems

350Matt

Original Poster:

3,849 posts

300 months

Tuesday 20th January 2009
quotequote all
Just found out 0.04Amp is normal for a 90's rover... blimey

Mr2Mike

20,143 posts

276 months

Wednesday 21st January 2009
quotequote all
350Matt said:
Chaps

whats a reasonable level of current drain for a car at rest , ignition off, alarm on etc

I would expect about 120M-300Ma? Is this right?
Sounds very much on the high side to me.

rev-erend

21,596 posts

305 months

Wednesday 21st January 2009
quotequote all
Get one of those lazer temp guns and point it around on a frosty morning .. my guess is something is warm.

leorest

2,346 posts

260 months

Wednesday 21st January 2009
quotequote all
At under 1/3 of an Amp whatever is drawing current will have to be small in order to get noticeably hot. Your index finger is quite a sensative instrument for decerning temperature variations.
Try pulling fuses until the current drain stops. that should eliminate huge areas of possibility.