Great video. I’m a bit confused regarding how the charging of the starter battery is done. You mention that the starter battery is connected to pin 6 that is connected to the control panel. I believe that this is the voltage indication on the panel, not a connection to the starter battery itself. Could perhaps pin 7 (+ Starter battery for refrigerator) be used instead?
Hi, I will get back to you with a better explanation in a few days when I am back to work, but for now I will explain from memory some of this. The pins to the display you are looking at are small pins making up a plug to the control panel. None of these are battery connections only display power and monitoring connection. The pins for battery control are large pins to the left of the EBL. It has two 6mm (from memory) that connect to the starter battery, another two 6mm to leisure battery and two negative cables. The two cable to pins 3 and 4 I believe (I will check this later) they are the vehicle batteries connections, they both go to the vans pillar drivers side where there is a 30A fuse. These are paralleled cables to reduce voltage drop
Great explanation Steve. Does this only apply to when you use solar panel and B2B? I have no solar panels but have a B2B and did not disconnect the leisure battery charging thru the EBL. It charges the leisure battery from both EBL and B2B from the alternator. I was wondering if that could be bad, but I've seen others do that as well. ...and thanks for shouting out our very helpful Adria Twin Group on FB, where you contribute alot.
The B2B has three functions. It ensures a proper voltage charging profile essential for smart alternators. It protects the alternator for over current charging and removes the starter battery when the engine is not running to prevent draining it when on site. If you leave the EBL still connected then you are removing all these benefits. If you install a lithium battery with the EBL still connected then you could burn out wiring and alternator. It's pointless having a B2B fitted if you are still charging through the EBL
@@BrackstonesTravelAdventures Thanks for this answer Steve. I just thought that it would work in the same way as if i had solars that also charge while you are driving (ofc with settings for lithium battery.) Just as any second source of charging. The EBL have managed charging pf ofcthe leisure battery until now with ok result, just a lower amp rate. I was just wondering if i could damage anything. They are separate source of charging. For sure the B2B charger is better performing and also have a better charging profile. As it seems now i do not need the EBL connected since the charging from B2B is definately good enough. For a weekend as now with temps that require heater on ( runs at nights) i use less than 13% out if my 161Ah battery. Last weekend the same, camped for 4 nights and used 23% of the caoacity. Thats great and the battery recharge on my way home easily. I will remove the EBL from charging. All the best/ Mattias
You may be right with it not damaging anything. I know in your previous Vlog you was monitoring it on the BMS and it was pulling a low current. Cannot be sure if you have 50% of the battery used that the charge current does not ramp up to 30 Amps or more. If it does the battery will pull 30 amps through the B2B and 30 amps through the EBL, so 60 amps in total load on the alternator. Like I say this is all theory as I have not tested this. I assume you have connected the B2B direct to the starter battery bypassing the EBL. Another problem I see is that the EBL does not have any charge profile for the alternator charging so the charging voltage may be higher than the lithium can take. This could damage it over time and will invalidate any warranty. I spoke to our lithium supplier and he said the BMS will record any charge voltage and if its showing an incorrect voltage the supplier will not accept any warranty claim. As for solar, we have all Victron devices so can monitor them by Bluetooth. One thing I have noticed if the solar ramps up to full Bulk charge the B2B sees this voltage and switches the charge profile to float. I have sometimes switched the solar off or lowered the bulk charge voltage when on the road so the B2B does all the charging. Best thing we fitted was the TR-16 battery gauge, I use this as a quick monitor of the charging when on the road. We are still waiting for our Lithium battery.
@@BrackstonesTravelAdventures Yes, the BMS and controlunitvin the battery register everything. Only wierd logs is the ones i got from the charging via BMS and 230V. Never from alternator. But as i said i do not need the BMS/alternator charge as i see it. It just adds the amps that still are low what I can see. My take is that the BMS prohibit anything, this is what it looks like. I also have a tempsensor at the negative pole at the battery to the B2B. D+ i got from the EBL in wireing. The charger could be witvout any of these since there are profile/sensor to get it to work anyway. But withlut D+ there was risks what i could see (between the batterys in the start moment) . Both connected gives the most effect out of the B2B.
Evening mate, your videos have almost made me look to install the roamer myself, I get all of the install and why you bypass the EBL and how, for both solar and B2B. Now this may be a stupid question but if you take away all of the outputs to charge from the EBL, what feeds back into the EBL to run the 240 sockets and everything else on the van. i.e what feeds back into the EBL from the leisure battery and the 240 charger. Cheers, i know you have sold the van now but hoping your still here. cheers Paul
So if I understand your question correctly. First what powers the 240v sockets in the van? This is powered direct from the electric hook up via an MCB and RCD unit which will be located under your rear passenger seat. So the EBL has no influence on this power source. Your 240v sockets will work even if you took out the EBL. As for charging the battery, there is a 240v supply into the back of the EBL which is live when you connect the electric hook up (supplied from the same MCB/RCD unit). The EBL has a basic charger internally which will then put a higher voltage on the battery connection into the EBL so this will charge your battery. For Lithium this charger is not ideal, so I removed the 240V connection from the back of the EBL (Like a Kettle plug) and put this into a Victron blue smart charger. I then connected this charger to the lithium battery. I did a separate Vlog on this setup so it can charge leisure and starter battery if needed.
Thanks for the reply I didn’t ask the question properly, sorry, what im after is how does all the stuff that is managed by the EBL get power if you bypass it with the B2B an dthe smart charger. There must be a feed from the leisure battery back into the EBL for the fridge, lights etc? Like i said probably a stupid question. Is it the pins 1 and 2 you mentioned in the video? Thanks
Hi Paul. Yes you are correct pins 1 and 2 are still connected to the EBL. Pins 3 and 4 are removed (or fuse removed) as this is the engine supply through the EBL to the leisure battery which the B2B will now do. So all the supply for the van is still the same as it would be from manufacture through the EBL. Hope this makes sense.
Not sure about the sports model. If it is you will find a red cable under drivers seat with a sun simbol on it and one above the fridge. Not sure how it will run into the pop up roof. If you are on the adria twin Facebook group ask on there im sure someone on the group will have done it
Great video Steve! I am planning to replace the battery in my campervan with a lithium and a B2B charger in my camper and i want to disable the charger on the EBL. Looking at your video. Is it enough just to pull the starter battery cables (pin 3 and 4 ) and connect the B2B directly to the lithum battery?
Yes, if you have the same van as I have then I did a Vlog on the fitting of Lithium battery. I did what you are saying removed the starter battery from EBL back to the drivers pillar. Then run direct from starter battery via B2B to lithium with fuses. I also removed the 240v plug from the EBL as this does not have lithium setting and fitted a Victron charger which I can switch between the leisure battery or the starter battery if needed
@@BrackstonesTravelAdventures I do not have the same van but the EBL is identical. I'm under strict orders from the wife that everything i do must be reservisible if/when we sell it. So my thinking is to just pull pin 3 and 4, insulate the ends and let them be in place and then run new 16mm2 with fuse from starter battery to the B2B. Good call to remove the 230 i missed that one! So the plan now expands to make an adapter for incoming 230 to a new lithium charger, Thank you very much!
Hi, I wonder if you can help. I have just bought a new sgx and the led lights flicker when I start the webasto heater and again on cool down. Have you had same issues? Have contacted the dealer but not heard back yet?
Yes this is common. Caused by voltage drop when heater starts up. Not serious but can be annoying. Apparently there is a dealer fix on this. It's being discussed on the Adria twin Facebook group. If I get a fix I will update it on my channel
Hi Steve, thanks for all the info so far. . . I've asked on the facebook group but have not had a reply as yet. . My question is: I have a 2020 Adria Twin 640 and I'm fitting a Maxxfan to the 40x40 rooflight. I want to know if there is any wiring in place at this location. . and if not, where would I a pick up a feed?
Noy sure about the year but most from what i know have a cable in the roof which goes to the rear passenger seat where boiler is. Supprised no one on the group mentioned this as some have fitted them
@@BrackstonesTravelAdventures Hi Steve, I have fitted the maxxfan ok and located a feed cable in the trunking. . however there is no power coming through it. . I am presuming that this will be a fuse or a secret switch, but as yet I have not located it? any ideas?
@@howardkingsnorth1535 have you checked under the rear passenger seat by boiler for same cable. May need to continuity check any wires there to the one you found in the roof. I will be away end of the week in our van so will have a look
@@BrackstonesTravelAdventures Ahh yes.. there it is .. I will look for a 12 v feed for it tomorrow when I have a multi meter. There are some strange looking wiring configurations here..
It is a bit strange they take it to the seat compartment rather than to the EDL under driver seat. I can only assume this was due to older models having the EBL and battery under the passenger seat. You should be OK to take it from the water heater supplu via an inline fuse
Motorhomer , I want to place a B2B in my Adria Twin , do you have a video of how you installed it ? I saw in this video that you have disconnected the two red wires on pins 3 and 4 of the EBL . I would like to install the Victron Orion TR smart DC/DC charger 12/12/30A .Can you please help me with this ? regards Marc
Check this link for the B2B fitting, the cables to the EBL where removed to stop the charging from starter to lithium via the EBL. Its all done direct through the Victron B2B. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1L7xhttk_S8.html
If I unplug that three pin plug plug to the ebl everything is dead is that correct until I connect my mppt as I am fitting a 50amp dcdc mppt renogy controller cheers
If you mean the 3 pin plug from the solar controller to the EBL, this will only remove the charging from the solar so should not kill the rest of the van working
@@BrackstonesTravelAdventures hi mate followed your way of doing it but as soon as I remove the cable that connects to the ebl and to the sun control mppt my van is dead no power at the control panel is this right
No this does not sound correct, the THREE-pin plug that plugs into the front of the EBS is only connected to the MPPT so the MPPT can put in a charge voltage to the starter battery and the leisure battery. Your van should be powering off the leisure battery which comes into the EBL on pins 1 and 2 on the left-hand plug of the EBL (believe this is 10 way and pin 1&2 are at the top). Unless you have a newer van, which is a different MOD but I very much doute they changed this. So, with the 3 pin plug disconnected check that you have 12V on pins 1 & 2, if not then you need to check the leisure battery is ok, any fuses and the isolation switch is not in the off position
@@BrackstonesTravelAdventures cheers really appreciate it I will check again I have a new fogstar 230amp battery mine is a 22 plate but still has a b2b and a suncontrol 320m
