PaulE
Active Member
Andy, I had the same question. Did hooking it up charge both batteries?
Roy C
Top Poster
According to the manual when the electrical hookup is connected:
"If the following conditions are fulfilled, the battery charger also charges the starter battery of the vehicle:
- the voltage of the starter battery must be between 9.5 V and 13.85 V
- the voltage of the additional battery must be at least 13.9 V"
Andy B
Active Member
VIP Member
Hi Paul,
Roy has given a very good answer to the question (thanks Roy). My understanding is that it will charge the main battery to a level where it will start the engine, etc.. However, it will not fully charge the main battery.
I am now thinking of adding in a trickle charger device that I can power off the 240v socket in the MP, such that when I have mains connected to the van, both batteries get a full charge.
I don't know if anyone else has done this ? If so I would be interested to know which trickle charger device was used.
Hope this all helps.
Sent from my Moto G (5) Plus using Tapatalk
Roy has given a very good answer to the question (thanks Roy). My understanding is that it will charge the main battery to a level where it will start the engine, etc.. However, it will not fully charge the main battery.
I am now thinking of adding in a trickle charger device that I can power off the 240v socket in the MP, such that when I have mains connected to the van, both batteries get a full charge.
I don't know if anyone else has done this ? If so I would be interested to know which trickle charger device was used.
Hope this all helps.
Sent from my Moto G (5) Plus using Tapatalk
WilvanEgdom
New Member
Clearly the 220V -> 12V internal battery charger is placed under the fridge (MP 2005). Question, if I connect a solar charger on these wires that lead to the internal battery will that then also charge the starter battery? Or are there two separate wires?
Does anyone on this forum have a wiring diagram? That would be awesome.
This way you do not need a (more expensive) dual battery solar charger. ;-)
Does anyone on this forum have a wiring diagram? That would be awesome.
This way you do not need a (more expensive) dual battery solar charger. ;-)
Method7
Top Poster
The thing under the hood looks like a battery, it even has a + power hookup for jump leads but it’s not a battery, it is in fact a relay box. Pop the cover off and take a look.
Attachments
Hi, did you get a reply to this question?
KRWakefield
Active Member
Dutchyankee
Active Member
It’s hard to believe but our 2004 Viano MP leisure batteries still original! The main battery was also original but died last year with the extreme winter weather we had (-12C for 7 days)
The leisure batteries (we have two on under each seat) also stopped holding their charge when the motor is off in a few minutes. So we’re going to have to replace them.
I discovered that there were two when I was preparing the wiring for the inverter and solar controller.
I installed a 4KW pure sinus inverter and busy with 2x 100W solar panels. I planning to see what MB changes for them and talk to a local company who installs this for not so do it yourself owners. If anyone is interested I will post the results with photos.
I got into this message thread Googling a search for new batteries and thought you guys might be interested.
I have absolutely no idea how these batteries lasted so long.
We bought this 2004 Showroom model from the first owner. He kept impeccable records (paper) and also give me a copy of his excel spreadsheet of all the cost for the entire time he owned it. It calculates the total cost per Kilometer.
I have photos anyone is interested
To be continued
The leisure batteries (we have two on under each seat) also stopped holding their charge when the motor is off in a few minutes. So we’re going to have to replace them.
I discovered that there were two when I was preparing the wiring for the inverter and solar controller.
I installed a 4KW pure sinus inverter and busy with 2x 100W solar panels. I planning to see what MB changes for them and talk to a local company who installs this for not so do it yourself owners. If anyone is interested I will post the results with photos.
I got into this message thread Googling a search for new batteries and thought you guys might be interested.
I have absolutely no idea how these batteries lasted so long.
We bought this 2004 Showroom model from the first owner. He kept impeccable records (paper) and also give me a copy of his excel spreadsheet of all the cost for the entire time he owned it. It calculates the total cost per Kilometer.
I have photos anyone is interested
To be continued
Dutchyankee
Active Member
handsonfree
Member
No , there are 2 batteries. One is a normal PB Batterie for starting etc under one seat. Under the other seat is a batterie with no fuel inside but a gel , this is the "camper "batterie. Difference one is for havy starts ( the normal car battery ) and the other gel batterie is a batterie which can deliver low current over a long period of time. Due to the fact that there are 2 different battery load models , they are not interchangeable and even DO NOT PUT a normal car batterry inside of the Gel batterry compartement , The batterry THE BATTERYY WILL BE BLOWN UP !!!!!!! so CAREFULLY !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Dutchyankee
Active Member
Thanks for the information. The MB dealer service department wasn’t aware that the bus had 3 batteries in all. I will remove the two under the seats and see what type they are. I was not intending to place a lead battery in the vehicle due to outgasing of Hydrogen sulfide gas during the charge/discharge cycle which is poisonous.
We’d be dead before it exploded.
We’d be dead before it exploded.
Dutchyankee
Active Member
This Viano has 3 batteries! The main in the engine compartment, a helper (also gel) under the driver’s seat and a second Gel leisure battery under the passenger seat which was swollen and replaced with a new gel battery.
