Battery IBS cable

[zenalessandro88]

Is ok to leave the IBS cable disconnected from the battery negative? I have a voltage sensitive relay for charging my secondary battery and the mechanic told me with this cable off I'll have costant voltage (transporter T6 2015). Thanks

 

[Ads_Essex]

I disconnected mine for a few months last year. From memory I think it charged at about 13.2V although that was measured by a dubious cigar socket volt meter. I reconnected it as I thought the leisure battery would charge better if the alternator was charging at 14.5V.
I believe the DC/DC charger will 'hold' the smart alternator at a higher voltage. I now plug in a ctek charger if the van is idle for more than a few days.
Don't take my word on the facts of this as I could be talking a load of bo££0cks. Just that it did no real harm to the van.
Easiest is to check it yourself.

Haven’t done it myself, but @keith baker may have.

You want a DC-DC charger really, so you can leave the shunt connected.

VSR, Split Charge or Battery to Battery charger for T6?

Hi Guys Ok i have a t5.1 12 plate and have always just ran 25mm2 to the front seat from a Duralit 140amp split charge to 1 or 2 banner batteries and all has been well in the world Now i've took the plunge and ordered a euro 6 Cherry red LWB van with lots of options for march 1 delivery So...

www.t6forum.com