Jump to content

Euro 6 van split relays


Chris33

Recommended Posts

Hi guys. Have bought a euro 6 van. I understand that the split relay differs from this to earlier models. 

Will it damage the van to run on the one that comes with a window cleaning warehouse system? Or should I upgrade this 

Link to post

Some 'smart' alternators can give out upto about 19v which will damage a normal lead acid battery. If you have a odb2 reader you might be able to monitor the voltage. I think a cheapy ELM327 and an app like Torque (Android) will produce a voltage graph that might help?

I would say you probably best not to use a simple split charge relay and will have to buy a B2B charger.

Link to post
1 hour ago, Chris33 said:

Hi guys. Have bought a euro 6 van. I understand that the split relay differs from this to earlier models. 

Will it damage the van to run on the one that comes with a window cleaning warehouse system? Or should I upgrade this 

First you need to identify what your new van's actual charging cycle is. In other words, how smart is you van's charging system.

Some van have regenerative braking, others used Adblu to reduce admissions. Euro 6 just means that vans built to that standard meet emission regulations. They don't specify how a manufacturer must meet them.

I've suggested in the past the you buy one of those cheap 12v digital voltmeters that plug into your cigarette lighter socket, take you van for a long drive and monitor what the alternator does.

https://www.ablemail.co.uk/sites/default/files/products/ablemailbatterychargerselectionguide.pdf

Edited by spruce
Link to post

I have a B2B charger in my 2018 dispatch. Just bought a 2014 Doblo and will be fitting a B2B charger to this also. I haven't had to charge my leisure battery since installing the B2B charger. My new van isn't euro 5 and doesn't have regenerative braking but I think the benefits of the B2B charger far outweigh the costs.

Link to post
49 minutes ago, P4dstar said:

I have a B2B charger in my 2018 dispatch. Just bought a 2014 Doblo and will be fitting a B2B charger to this also. I haven't had to charge my leisure battery since installing the B2B charger. My new van isn't euro 5 and doesn't have regenerative braking but I think the benefits of the B2B charger far outweigh the costs.

I have a 62 plate Peugeot Boxer. The alternator charges at 13.9v all the time. I could use a vsr but the maintenance free leisure battery needs 14.2v to charge it fully.

I can set my Sterling B2B charger to the output voltage I need. I set the charge voltage to 14.6 for my old flooded leisure battery. 

Link to post
45 minutes ago, spruce said:

I have a 62 plate Peugeot Boxer. The alternator charges at 13.9v all the time. I could use a vsr but the maintenance free leisure battery needs 14.2v to charge it fully.

I can set my Sterling B2B charger to the output voltage I need. I set the charge voltage to 14.6 for my old flooded leisure battery. 

To be fair you were the one who gave me the idea too. I love that B2B charger, can't fault it. I remember you saying you'd install one of those even on vans pre euro 5.

Link to post
27 minutes ago, P4dstar said:

To be fair you were the one who gave me the idea too. I love that B2B charger, can't fault it. I remember you saying you'd install one of those even on vans pre euro 5.

.... and to be fair it kept up with recharging the battery just using a couple of pumps a day. During the summer I hardly 'bench' charged my leisure battery at all.

But with drawing addition current with the diesel heater and winter cold temps, I need to 'bench' charge the batteries every night. I have a fitted the charger lead on the starter battery input side of the B2B charger. My charger then tops up the van battery at 13.9v (the charger's output) as well as the leisure battery at 14.2v. (The Sterling unit boosts the charger's output from 13.9 to 14.2v.)

Edited by spruce
Link to post
22 minutes ago, spruce said:

I have a fitted the charger lead on the starter battery input side of the B2B charger. My charger then tops up the van battery at 13.9v (the charger's output) as well as the leisure battery at 14.2v. (The Sterling unit boosts the charger's output from 13.9 to 14.2v.)

That's a great idea. Charge both batteries at once, nice.

Link to post
8 hours ago, Baldmonkey said:

I just disabled my smart alternator, no issues at all so far. 

 

If you have a sealed leisure battery (maintenance free - no caps to unscrew to top up water levels) then 14.6/14.7v is higher than the recommended charging voltage for these types of batteries.

If the van has regenerative braking then the alternator dumps charge into the starter battery at around 17 volts which is far too high for a leisure battery.

It obviously works for you but it doesn't appear to be a fix that is a popular solution on the internet.

Link to post

I had a SCR in my last van (which my mate Danny uses), when I found out the hassle of fitting one in my custom euro 6, I  stuck a smart charger in the back, and just plug that in each evening.

I don’t miss the SCR one bit 👨‍🦰

Link to post

Neither do I didn’t both with this van as I only do approx 3500 to 4000 miles a year I have two electric reels and two pumps so smart charger every night 👍

Edited by Den
  • Like 1
Link to post
1 hour ago, spruce said:

If you have a sealed leisure battery (maintenance free - no caps to unscrew to top up water levels) then 14.6/14.7v is higher than the recommended charging voltage for these types of batteries.

If the van has regenerative braking then the alternator dumps charge into the starter battery at around 17 volts which is far too high for a leisure battery.

It obviously works for you but it doesn't appear to be a fix that is a popular solution on the internet.

The charge only ever sits at 14.2v when running, I assume when I did this the ecu was learning the change from the battery monitor system and besides my van only ever runs for a maximum of 20 minutes at anyone time so I think it's perfectly safe, thanks

Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.