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trophychap

trophychap

Joined
Dec 24, 2009
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2009 previously a tugger for thirty years
Hi folks can any Pilote 740 owners shed any light on the Android system for me? We bought a 2019 740 Sensation back in May we started having problems in September, we went on a Rally and after two nights when we had the lights on for about five hours in total we were suffering from a to all intents and purposes a flat hab battery.

We cut out time on the rally short and left for home we live about a hundred miles away so should have put some charge back in on the way home. Now here is the curious thing when I started the motorhome to return home I had a warning "low battery check handbook come up on the screen" that to me was very strange! Lots of things seem to be happening with the van at the moment but my main question is that the cab battery status does not show up on the Android system only the hab battery so I never have any idea of the state of the cab battery, Both my previous vans had both a cab and hab battery level indicator system.

Can anyone shed any light on this for me please?
 
First thing. I would be getting a multimeter and testing the voltages on the batteries.
You need to check if there is charge going to the batteries while engine running ( alternator charge) and from the mains charger while on EHU.
A 100 mile run is really not that much in charge, especially if you have things like the heater going, lights on, radio etc..

Cant help with the android stuff..
 
Don't know your van but do you mean android?
 
I can tell from the android system that charge is going to the battery when the engine is running. However it is now getting more serious as the hab battery is being charged on hook up but there is nothing going forward to the cab battery when the van is plugged into the mains, so I am sure that there is something wrong with the wiring a low cab battery has almost certainly caused the dreaded seat belt warning light to come on. Its going back to the dealers this Friday.

Thanks for your input I am going to plug my battery charger in shortly, at the moment the cab battery is completely flat that's after the van has been plugged into the mains for the last three weeks! so there is certainly something amiss.
 
EHU and charger often doesn't charge engine battery as well as leisure battery.

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@bernie109

Yes the van management system is an android screen.
 
Jev88 Both my previous vans have charged the cab battery as well as the habitation battery when plugged in. If for example we were to stay on a site for a couple of weeks on hook up, we could end up with a flat cab battery if that was the case that they were both not receiving some charge.
 
trophychap said:
Jev88 Both my previous vans have charged the cab battery as well as the habitation battery when plugged in. If for example we were to stay on a site for a couple of weeks on hook up, we could end up with a flat cab battery if that was the case that they were both not receiving some charge.
Click to expand...
Maybe not a Pilote though. I was with Nutrocker Pat when they bought theirs and we had to specify a battery master, solar etc as extras.
 
Jev88 said:
EHU and charger often doesn't charge engine battery as well as leisure battery.
Click to expand...

In 20 years and 8 vans, every van i have had has charged both batteries while on EHU..
All British vans if that's any relevance..
 
trophychap said:
Jev88 Both my previous vans have charged the cab battery as well as the habitation battery when plugged in. If for example we were to stay on a site for a couple of weeks on hook up, we could end up with a flat cab battery if that was the case that they were both not receiving some charge.
Click to expand...
I can only speak from experience and the popularity of Battery Master systems that take surplus charge from leisure and feed a trickle to engine battery. My old Autocruise has a switch that decided which battery was used for 12V and therefore which one was charged by EHU.

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Previously had a 2020 Pilote P650. That didn't charge the engine battery when on hook up. Had to fit a Battery Master.

I assume by Android system that you have the Xperience tablet fitted by the entrance door.
 
My CI van does not charge cab battery on HU
 
Lyrick Yes that's correct one of the main problems is there does not seem to be any way of knowing what the state of charge the engine battery is at. I have a battery master waiting to be fitted, I did not want to interfere with any wiring at the moment as It is going back to have another Lithieum battery fitted this Friday.
 
tonka said:
In 20 years and 8 vans, every van i have had has charged both batteries while on EHU..
All British vans if that's any relevance..
Click to expand...
Neither of our Italian vans charged the vehicle battery on hook up first thing we did was add a battery master.

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I have a Phantom tracker fitted on my motorhome which has a app that tells you cab battery status.
Also in the owners manual it does say the only charge the cab battery receives is when the engine is running.
 
scotzsue said:
Neither of our Italian vans charged the vehicle battery on hook up first thing we did was add a battery master.
Click to expand...
Interesting, never come across this before... Typical of how these manufacturers all do their own thing..
 
With a multi meter you need to check the voltage across the cab battery terminals with engine off, it should be above 12+Volts, with engine running the voltage should increase to arround 14+ volts if its getting a charge from the alternator. If its not 14Volts with engine running it may be either a blown fuse or a faulty alternator.
The alternator should charge both the Cab & Hab batteries via the split charge relay, so your hab battery should also show an increased voltage above 12 volts with the engine running.
Fitting a battery master should help charge the cab battery while on hook up, but only when your hab battery is fully charged.
Its bad news if the vans mains charger does not charge both the cab & the Hab batteries when on hook up, that is penny pinching to say the least, as it would require the van to be driven at least weekly depending on how much is being drawn by Alarms, Radio Head units etc.
LES
 
hi i have a g740 2024 with 240v attached the cab battery was getting discharged ,,i fitted a battery master ,all seems to work well ,,
 
rob1234
That sounds to me as if something is very wrong there, no way should your cab battery discharge when you are plugged into the mains. Can you remember if there was any info on the cab battery on your android panel please. Mine only shows the habitation battery, there is no way to switch the charger between cab and hab so it should in my opinion work automatically. It would seem to me that I have to risk the seat belt ECU giving up the ghost every time I try to start the van if I have no information as to the state of charge if the cab battery.

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Last edited:
trophychap said:
rob1234
That sounds to me as if something is very wrong there, no way should your cab battery discharge when you are plugged into the mains.
Click to expand...
hi as far as i am aware the cab battery does not get charged ,,that is why i had to fit a battery master ,,but I'm no expert ,just what i was told i need to do .
 
'@rob12344

Hi Rob
I have a circuit diagram of the Schrieber distribution system and I am sure that it shows a split charger on it.
 
If there is no information on the android screen then I would guess that the vehicle battery does not get charged when on EHU.
My last Roller team only charged the hab battery whereas all my mates autocruise (British made) charged the van battery as well when on EHU.
 
gus-lopez
You may be correct although my last Pilote 716 the one that got nicked off the drive did charge the hab and cab battery when on hook-up. But I did have a battery master on that one! from the off. The thing is, it makes no sense to me the ehu is not switchable so that to me means if I wanted to stay put for a time anywhere I would either have to go for a long drive every few days or carry my battery charger with me and plug it into a 240v socket inside the van.
 
trophychap said:
gus-lopez
You may be correct although my last Pilote 716 the one that got nicked off the drive did charge the hab and cab battery when on hook-up. But I did have a battery master on that one! from the off. The thing is, it makes no sense to me the ehu is not switchable so that to me means if I wanted to stay put for a time anywhere I would either have to go for a long drive every few days or carry my battery charger with me and plug it into a 240v socket inside the van.
Click to expand...
hi my last autotrail i could switch between cab /hab ,,but on this pilote ,, nothing , so fitted bat master to charge the cab up ,,

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Get yourself a bm2 from the bay to monitor what is going in and coming out of the vehicle battery.
You do need an app on your phone but you do get a good graph of what's happening.
 
berni109 said:
Get yourself a bm2 from the bay to monitor what is going in and coming out of the vehicle battery.
You do need an app on your phone but you do get a good graph of what's happening.
Click to expand...
i have a look ,,is that what its called a bm2,,? just ordered one from aliexpress £12 delivered
 
Last edited:
trophychap said:
'@rob12344

Hi Rob
I have a circuit diagram of the Schrieber distribution system and I am sure that it shows a split charger on it.
Click to expand...
A split charger is used to charge the leisure battery from the alternator not to charge the starter battery.
I had a PVC for 8 years, it didn't charge the starter battery.
I've had a coachbuilt for 3 years, it doesn't charge the starter battery so I fitted a Vanbitz Battery Master.
My sister has a coachbuilt, it also doesn't charge the starter battery so I fitted a Battery Master.
Not all vans charge the starter battery when on EHU.
 

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