The Auto-Sleeper Motorhome Owners Forum (ASOF)
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Keep your engine battery charged

5 posters

Go down

Keep your engine battery charged Empty Keep your engine battery charged

Post by Paulmold Thu Dec 04, 2014 3:45 pm

Cheaper alternative to the well known 'Battery Master' (around £60, I know I've got one) is this unit, whether on solar or mains charge, it will charge engine battery once leisure battery is near full charge. Only three wires to connect..


http://www.ebay.co.uk/itm/SOLAR-WIND-SPLIT-CHARGE-LEISURE-ENGINE-BATTERY-CAMPER-MOTORHOME-BOAT-12V-/331302696690
Paulmold
Paulmold
Donator
Donator

Male

Posts : 26582
Joined : 2011-02-21
Member Age : 73
Location : North East Wales
Auto-Sleeper Model : Sussex Duo
Vehicle Year : 2010

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Peter Brown Thu Dec 04, 2014 4:08 pm

It looks ok but don't fit if you have a sargent EC325 or newer system installed and fit inline fuses(10amp) at the connection to each battery.

Peter

_________________
Peter #1
Peter Brown
Peter Brown
Donator
Donator

Male

Posts : 10588
Joined : 2012-11-10
Member Age : 72
Location : Staffs
Auto-Sleeper Model : Broadway EB
Vehicle Year : 2016

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by artheytrate Thu Dec 04, 2014 10:53 pm

I had one fitted to my last 2 vans excellent  never had a flat battery.

John.
artheytrate
artheytrate
Member
Member

Male

Posts : 705
Joined : 2014-01-19
Member Age : 74
Location : Stoke on Trent or Benidorm
Auto-Sleeper Model : None
Vehicle Year : 2017

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Yelto Sat Dec 06, 2014 12:40 pm

With this unit keeping both batteries charged when on hookup at home or away, does it allow both batteries to drain power when not on hookup ie  if on a site with no hookup for a couple of days on battery power only?

Rod
Yelto
Yelto
Member
Member

Male

Posts : 15
Joined : 2014-09-19
Member Age : 79
Location : Otley West Yorkshire
Auto-Sleeper Model : Ford Transit Duetto
Vehicle Year : 2004

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Yelto Sat Dec 06, 2014 1:03 pm

oops Just read in more detail about this unit and it appears that once the leisure battery drops below a certain voltage it stops it will not draw anything from the motor battery 
Am I correct in this assumption? 

2004 Ford Duetto Automatic 2.5 with batteries under drivers seat As I have had recent issues with both batteries (now sorted), while I had the drivers seat removed for better access I wired a separate positive & Earth from each battery to a chocblock connector to a position where I could easily use a voltmeter to check voltage of each battery. 

So looking at the wiring of this unit I could utilise the two separate blocks and I would also fit a in line fuse as recommended and also fit a separate on/off switch


Rod
Yelto
Yelto
Member
Member

Male

Posts : 15
Joined : 2014-09-19
Member Age : 79
Location : Otley West Yorkshire
Auto-Sleeper Model : Ford Transit Duetto
Vehicle Year : 2004

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by -mojo- Sat Dec 06, 2014 11:58 pm

Do you know for sure that the two batteries are independent? I know that on the older (1999 and earlier) Transits, the auto versions ~always~ had the batteries permanently twinned - permanently connected together. However, I don't know if that's true of the Mk.6.
-mojo-
-mojo-
Member
Member

Male

Posts : 4566
Joined : 2012-08-04
Member Age : 24
Location : Southeast
Auto-Sleeper Model : Trooper
Vehicle Year : 2006

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Yelto Sun Dec 07, 2014 10:41 am

No I am not sure, there are a lot of wires in there.

When I was having battery problems I was taking regular voltage readings and it appeared that if I was charging one battery to full it did not then increase the voltage of the other and visa-versa.
Would the voltage on both batteries increase if they were twinned? 

Maybe if I put an enquiry on the "Van Conversions" forum another member may know

Rod
Yelto
Yelto
Member
Member

Male

Posts : 15
Joined : 2014-09-19
Member Age : 79
Location : Otley West Yorkshire
Auto-Sleeper Model : Ford Transit Duetto
Vehicle Year : 2004

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by -mojo- Sun Dec 07, 2014 1:50 pm

They can't be twinned then. The batteries on the older auto Transits are linked by a heavy cable (at the back of the starter motor IIRC) so they ~always~ showed the same voltage reading.

If yours don't read the same voltage with the engine off then it must incorporate some sort of split charge relay or equivalent. It's not unusual for these to fail, as they have to carry very high currents when activated - because in their simplest form they just connect the alternator, the starter battery positive and the leisure battery positive together when the engine is running. However, they can be more sophisticated than that these days...
-mojo-
-mojo-
Member
Member

Male

Posts : 4566
Joined : 2012-08-04
Member Age : 24
Location : Southeast
Auto-Sleeper Model : Trooper
Vehicle Year : 2006

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Yelto Sun Dec 07, 2014 4:43 pm

Thanks for that info. 
I think for the time being when at home I will put the van on hookup and charge the motor battery as this gradually over time drains with the alarm being on, and then every so often switch over onto the Hab battery and see how I go on.

Only had the camper for a couple of months so I am still on a steep learning curve. 

P.S. as a true practising Yorkshireman this is the cheapest way.  


Thanks again for the help & advice 

Rod
Yelto
Yelto
Member
Member

Male

Posts : 15
Joined : 2014-09-19
Member Age : 79
Location : Otley West Yorkshire
Auto-Sleeper Model : Ford Transit Duetto
Vehicle Year : 2004

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Peter Brown Sun Dec 07, 2014 5:11 pm

I recommend that you only charge for about six hours a week or you will run out of electrolyte in the battery and cause irreparable damage to it.

Peter

_________________
Peter #1
Peter Brown
Peter Brown
Donator
Donator

Male

Posts : 10588
Joined : 2012-11-10
Member Age : 72
Location : Staffs
Auto-Sleeper Model : Broadway EB
Vehicle Year : 2016

Back to top Go down

Keep your engine battery charged Empty Re: Keep your engine battery charged

Post by Yelto Sun Dec 07, 2014 5:20 pm

Thanks. 

When I got the camper I had a problem with the Eberspacher heater sometimes working and sometimes not, eventually after a proses of elimination I found out that there was not enough volts in the battery to get it going. 

Checked the Hab battery to find it was bone dry and had some buckled plates. So I don't think the battery levels had been checked for a long long time.
 
Fitting a new battery solved the problem   

Rod
Yelto
Yelto
Member
Member

Male

Posts : 15
Joined : 2014-09-19
Member Age : 79
Location : Otley West Yorkshire
Auto-Sleeper Model : Ford Transit Duetto
Vehicle Year : 2004

Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum