↓ Advertise on Defender2 ↓

Home > Maintenance & Modifications > Battery dead but very warm- what do i do?
Post Reply  Down to end
Page 4 of 6 <123456>
Print this entire topic · 
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Quote:
Disconnect negative first....reconnect negative last = NO SPARK.


AHA!!

So, if I disconnect the negative with everything I can turn off turned off, and I get a spark does that say there is something making a circuit so something is wrong?

Would a tracker still plugged in cause such a spark? Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #380975 22nd Dec 2014 3:29pm
View user's profile Send private message View poster's gallery Reply with quote
munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
you still get a spark if there is a load on the battery

the no spark comes from if you connect up neg last and your spanner touches the bodywork then you get no spark

if there is a current load on the battery when the leads are connected which ever way you will get a spark
Post #380977 22nd Dec 2014 3:31pm
View user's profile Send private message View poster's gallery Reply with quote
munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
clock , alarm , tracker will all draw a bit

really you need to get down to maplins and buy a meter
Post #380980 22nd Dec 2014 3:35pm
View user's profile Send private message View poster's gallery Reply with quote
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Multimeter purchased Thumbs Up

http://www.screwfix.com/p/lap-mas830b-digi...600v/75337 not bad I thought.

So.


How do I use it and what am I checking?

Again massive massive thank you's to everyone who has helped so far Bow down Bow down Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #380988 22nd Dec 2014 4:00pm
View user's profile Send private message View poster's gallery Reply with quote
Venomator



Member Since: 25 Aug 2014
Location: Peterborough
Posts: 2087
United Kingdom 
^ ^ ^
Good job on the Multi-Meter Shaggy... Thumbs Up

It would have been my choice if they did it in Green... Mr. Green

Just waiting for mine to check out the quality and functionality, if it turns out to be good value, and as well built as some of the reviews suggest, I may even consider a slightly more expensive model, in Green of course... Whistle  Rog... Mr. Green
The GREEN One...

MY2016 Urban Truck Build Thread - http://www.defender2.net/forum/topic40548....al[/color]
Post #380994 22nd Dec 2014 4:13pm
View user's profile Send private message View poster's gallery Reply with quote
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Thank You Venomator Very Happy

Like you it was a done deal but because it was blue

Anyway had a quick go and hopefully I have found some meaningful things.

Old battery after being on charge since 11:30 is showing 12.57 with the number dropping off my a tenth of a milivolt every 5 seconds (is that normal?) with the charged disconnected

When I plugged it into the charger again this went to 12.78 and stayed steady.

Outside in the defender new battery with everything off I can turn off (only things drawing are tracker and clock and radio) was measuring 12.64 V

What does this mean and have I tested the right things? Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #380999 22nd Dec 2014 4:33pm
View user's profile Send private message View poster's gallery Reply with quote
Rickydodah



Member Since: 14 Jul 2014
Location: East Sussex
Posts: 1091
You'd be better connecting the multimeter, set on DC amps between the negative post of the battery and the earth lead. This will indicate what the AMP draw is from the battery. If you've just got the clock and the like running then your looking for 0.5 amp max I'd say, that's around a 6watt consumption about the same as a sidelight. Thumbs Up I started with nothing and still have most of it left!
Post #381005 22nd Dec 2014 5:00pm
View user's profile Send private message View poster's gallery Reply with quote
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Will go and give it a go Thumbs Up Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #381009 22nd Dec 2014 5:06pm
View user's profile Send private message View poster's gallery Reply with quote
munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
shaggydog wrote:
Thank You Venomator Very Happy

Like you it was a done deal but because it was blue

Anyway had a quick go and hopefully I have found some meaningful things.

Old battery after being on charge since 11:30 is showing 12.57 with the number dropping off my a tenth of a milivolt every 5 seconds (is that normal?) with the charged disconnected

When I plugged it into the charger again this went to 12.78 and stayed steady.

Outside in the defender new battery with everything off I can turn off (only things drawing are tracker and clock and radio) was measuring 12.64 V

What does this mean and have I tested the right things?


don't try and hurry it , leave it on a low charge for a long time , trying to hurry it along you will get a voltage but no guts to it
Post #381012 22nd Dec 2014 5:16pm
View user's profile Send private message View poster's gallery Reply with quote
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Did it but not sure I did it right because nothing much really happened Big Cry

I have never used one of these before so this is what I did.

Unplugged negative lead.
Set dial to 2m on A with straight line above and 3 dots below
Put red lead to battery - and black lead to the loose cable.
nothing happened. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #381014 22nd Dec 2014 5:18pm
View user's profile Send private message View poster's gallery Reply with quote
munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
always start with highest amp setting just in case

cant get a big enough pic to see dial and advise

middle hole for black lead , red lead 10adc above lap word

Last edited by munch90 on 22nd Dec 2014 5:29pm. Edited 1 time in total
Post #381019 22nd Dec 2014 5:25pm
View user's profile Send private message View poster's gallery Reply with quote
Venomator



Member Since: 25 Aug 2014
Location: Peterborough
Posts: 2087
United Kingdom 
shaggydog wrote:
Did it but not sure I did it right because nothing much really happened Big Cry

I have never used one of these before so this is what I did.

Unplugged negative lead.
Set dial to 2m on A with straight line above and 3 dots below
Put red lead to battery - and black lead to the loose cable.
nothing happened.
10A seems to be the highest setting on your dial?

As Munch says, start there and see what you get, although I would go straight to the Earth connector, rather than try and use the loose lead... Thumbs Up  Rog... Mr. Green
The GREEN One...

MY2016 Urban Truck Build Thread - http://www.defender2.net/forum/topic40548....al[/color]
Post #381020 22nd Dec 2014 5:28pm
View user's profile Send private message View poster's gallery Reply with quote
shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Pic of my Multimeter.

I had it set to 2m at 3 o'clock


Click image to enlarge

Was my positioning of the wires correct (red on battery black on cable) ?

Again thank you all for your input hopefully others are reading and learning along too Bow down Bow down Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #381023 22nd Dec 2014 5:31pm
View user's profile Send private message View poster's gallery Reply with quote
munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
munch90 wrote:
always start with highest amp setting just in case

cant get a big enough pic to see dial and advise

middle hole for black lead , red lead 10adc above lap word


10a dial setting at about 5 o'clock on meter dial

DONT forget you need to disconnect the battery earth lead , then use the meter leads to complete the circuit again

Last edited by munch90 on 22nd Dec 2014 5:35pm. Edited 1 time in total
Post #381024 22nd Dec 2014 5:33pm
View user's profile Send private message View poster's gallery Reply with quote
Venomator



Member Since: 25 Aug 2014
Location: Peterborough
Posts: 2087
United Kingdom 
^ ^ ^
And you'll probably need to plug the Black lead into the left hand socket... Thumbs Up

EDIT - and yes, you were using the cables the conventional way round... Mr. Green  Rog... Mr. Green
The GREEN One...

MY2016 Urban Truck Build Thread - http://www.defender2.net/forum/topic40548....al[/color]
Post #381025 22nd Dec 2014 5:34pm
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 4 of 6 <123456>
All times are GMT + 1 Hour

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums