Disconnected battery but still power to cab (1 Viewer)

Tiptop camper

Free Member
Jul 29, 2020
2
0
Funster No
73,624
MH
Motorhome
Exp
1 year
Hi all, wondering if anyone can help: I have removed the negative terminal from starter battery as I have done a few times before to preserve the battery while parked up. Normally The clock and all power is off to the cab. Strangely this time the clock still runs and the power seems to still be there, even though the cable to the negative terminal is disconnected and insulated! Any ideas why this could be?
 
Jan 27, 2018
2,669
2,117
Northampton
Funster No
52,151
MH
Rapido & Bongone
Have had any rewiring done since last time eg b2b or alaRm fitted?
Disconnect the lesuire battery, does the clock stop?
Have you changed the clock, does it have its own bettery
Is it magic or ghosties (run out of semi sensible ideas)
 
Jan 19, 2014
9,368
24,704
Derbyshire
Funster No
29,757
MH
Elddis Accordo 105
Exp
since 2014
There must be a leisure battery positive wired to something that is also wired to the engine battery in parallel.. I think 🤔 Maybe.. Could be 👍

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Nov 2, 2008
461
377
Lincolnshire
Funster No
4,767
MH
PVC, S&L Iveco
Exp
45 years
If you have solar or are on hookup and also have a battery master or other such device fitted which charges the cab battery if the leisure ones are full it will still give a feed to the cab bypassing the battery.
 

TheBig1

LIFE MEMBER
Nov 27, 2011
17,592
43,006
Dorset
Funster No
19,048
MH
A class
Exp
many many years! since I was a kid
if not a feed from a solar panel it suggests your split charge relay is failed closed so allowing the leisure battery to back feed
 

Northernraider

LIFE MEMBER
Jul 30, 2017
27,379
176,876
On the sofa ....
Funster No
49,727
MH
Mobilvetta eurayacht
Exp
On and off since 95
My money is on it having a solar connection

I can completely remove my starter battery and still have power to the clock , stereo and cigarette lighter etc ...

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