Engine Battery Voltage (1 Viewer)

Affiliate links here may earn MHF compensation

Organplayer

Free Member
Dec 11, 2011
110
38
Berkshire
Funster No
19,164
MH
C class
Exp
Sept. 1995
With the leisure battery showing a steady state of 12.7 to 13.8, and the engine battery showing 12 to 12.3v, do these figures for when the batteries are on "trickle charge" seem correct. I was concerned that the engine battery appeared very low voltage compared to the leisure battery.
I have never really checked the state of the engine batteries in all these years. Laid back attitude comes to mind dosen"t it.
Best wishes to all Fun members.
 

Techno

LIFE MEMBER
Deceased RIP
Jul 28, 2010
15,475
20,757
Leeds the one up North
Funster No
12,905
MH
Rapido 7090F 3 litre 160
Exp
May 2010
No the engine battery is either not getting any charge or the reading is wrong. Check the voltage with a meter at the battery terminals. If it was being charged they would both show similar with no load switched on.
 

pappajohn

LIFE MEMBER
Aug 26, 2007
43,520
51,051
Dark side of the moon
Funster No
172
Exp
Since 2005
Engine battery off charge and resting should show 12.6 to 12.7v

12v is technically flat.

Time for a new one i reckon or put it on a proper charger and see if it recovers.
 
Jun 6, 2012
1,156
1,602
Leeds
Funster No
21,344
MH
A class
Exp
Since 2012
image.jpg

Subscribers  do not see these advertisements

 
OP
OP
O

Organplayer

Free Member
Dec 11, 2011
110
38
Berkshire
Funster No
19,164
MH
C class
Exp
Sept. 1995
Thanyou DPSUK 99 for your informative reply. Engine battery is six years old now so looks like a new one is required, but to make sure I shall get this one tested/checked first. Best wishes. Ed
 
OP
OP
O

Organplayer

Free Member
Dec 11, 2011
110
38
Berkshire
Funster No
19,164
MH
C class
Exp
Sept. 1995
Yes Techno, it does start the engine even when the Sargent controller display shows 11.8 or 9v.Once again thanks for your interest which is appreciated.
(I did think perhaps the Sargent controller reading might be erroneous but I got the same reading from my little 12v plug in digital meter)
 

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top