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Chickenhawk

New Member

• Dec 6, 2011

• #1

Hi folks. I've a disco 2 td5 2002. I've put 2 batteries in it since april. There is something draining them badly even when she's switched off. has anyone experienced this or any ideas?
The alternater is putting out 14.5 volts/ no obvious reason for drain.

 

Last edited: Dec 6, 2011

sierrafery

Well-Known Member

• Dec 6, 2011

• #2

What kind the split charging system do u have?

 

discool

Well-Known Member

• Dec 6, 2011

• #3

You won't find an obvious reason for the drain you will have to look, so put an amp meter in series with the neg battery lead and if there is a high loading remove a fuse one at a time till it lowers and that is the circuit that's giving a problem, start with the security system supply and engine ecu..

 

sierrafery

Well-Known Member

• Dec 6, 2011

• #4

I'm suspecting some fault in the split charge or starter circuit cos usually if one of the D2 systems protected by a fuse drains the battery it will cause other problems too....and there are 64 fuses in total

 

DEFENDER90-DAZ

New Member

• Dec 6, 2011

• #5

Check circuits easily with this : 250626399036 (ebay)

 

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Chickenhawk

New Member

• Dec 6, 2011

• #6

I've tested the load as suggested. Getting a reading of 0.02 amps with ignition off. Tested voltage while running and getting 14.56 at battery terminals. ????

 

sierrafery

Well-Known Member

• Dec 6, 2011

• #7

...and if there is something wrong with the split system/relay and one of the battery is on it's way out it will drain the other good one without showing any drain in serial connection with the car's electric equipment....i rest my case

 

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Chickenhawk

New Member

• Dec 6, 2011

• #8

at the risk of sounding thick should i have 2 batteries for a split charging system????

 

RikWilson

New Member

• Dec 7, 2011

• #9

Chickenhawk said:

at the risk of sounding thick should i have 2 batteries for a split charging system????

Click to expand...

How are your batteries connected up?

 

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Chickenhawk

New Member

• Dec 7, 2011

• #10

I thought I only had 1

 

RikWilson

New Member

• Dec 7, 2011

• #11

Chickenhawk said:

I thought I only had 1

Click to expand...

Ahh I think a few of us misread that.

You said you'd put 2 batteries in since April, and I read it as in April, you put in 2 batteries at the same time. So a dual battery system.

Maybe someone will give some better advice now, and glad it wasn't just me who read it wrong.

 

sierrafery

Well-Known Member

• Dec 7, 2011

• #12

Chickenhawk said:

Hi folks. I've a disco 2 td5 2002. I've put 2 batteries in it since april. There is something draining them badly even when she's switched off. has anyone experienced this or any ideas?
The alternater is putting out 14.5 volts/ no obvious reason for drain.

Click to expand...

Sorry, the underlined affirmation made me think u have 2 batteries in it at the same time not one after another:doh: