Battery charger recommendations CTEK / Victron ?

[rover220]

Sorry, also slightly confused. Are you saying this only applies if connecting to starter battery. I have my Victron bluesmart charger connected to both positive and negative of my lithium leisure battery in my 6.1. Is this okay or should I use a ground such as the seat post instead of the negative terminal of the leisure batt.Thanks in advance.

Yes correct. Only a concern if charging starter battery. Leisure unaffected.

 

[Dellmassive]

Relax people . . . .

This only applies to the starter battery on a T6/T6.1 (that has stop start)

Reason: the starter battery has a sensor attached to the battery negitive post that monitors the power in/out of the battery.... the sensor is used by the Van's computer or EMS (energy management system) for stop/start, emission and alternator control.

This does not relate to your leisure battery..... (unless you have your own second shunt/monitor like a victron BMV712)

Having said that using a body ground is never an issue and my preferred method. (Ensuring your battery/body ground link is sufficient)


Look here :

Battery Charging - Main Battery Chassis Point -

Battery Charging - Main Battery Earth Point - so weve all be told NOT to bridge out the battery monitor on the neg side of the battery when charging it. This is so the ECM can correctly gauge the SOC (state of charge) of the starter battery by monitoring the current flow in and out of the...

www.t6forum.com

.

 

[Garny999]

Yes correct. Only a concern if charging starter battery. Leisure unaffected.

Thank you @rover220 and @Dellmassive for the confirmation.

 

[Deaky]

Sorry, also slightly confused. Are you saying this only applies if connecting to starter battery. I have my Victron bluesmart charger connected to both positive and negative of my lithium leisure battery in my 6.1. Is this okay or should I use a ground such as the seat post instead of the negative terminal of the leisure batt.Thanks in advance.

That’s fine for your leisure battery. The starter battery has a shunt on the -ve terminal that basically counts the amps in and out of the battery. If you connect a charger to the -ve post of the starter battery the shunt won’t be aware of the amps going in.

 

[Garny999]

That’s fine for your leisure battery. The starter battery has a shunt on the -ve terminal that basically counts the amps in and out of the battery. If you connect a charger to the -ve post of the starter battery the shunt won’t be aware of the amps going in.

Cheers @Deaky understand now

 

[Ayjay]

Out of interest, does this apply to any car with stop / start? I ask as, apart from the T6, we’ve got a Honda and an Audi which both have it. Also, as asked above, what’s a suitable place for the negative crocodile clip if you can’t use the battery terminal please?

they will almost certainly have some form of shunt/monitor on the battery negative terminal.

What does that mean please? Apologies for asking but I've no ides what a 'shunt/monitor' is and as I've said on here before, I'm a complete numpty when it comes to car mechanical or electrical stuff.

Hi (and sorry to bring this up again!). Can anybody give any further information following the exchange above please. I need the answers as I probably need to give the Audi SQ5 and Honda Civic starter batteries a top up but if there's any potential harm from simply connecting the clips to the positive and negative terminals. I obviously don't want to do it and need to find another place for the negative clip - all suggestions gratefully accepted. Cheers in advance.

 

[Ayjay]

Sorry but I just realised that there was another page with an answer to the question about an alternative ground. Is a body ground just connecting the clip to anything else in the car that's metal and connected directly to the chassis or bodywork please?

 

[rover220]

Sorry but I just realised that there was another page with an answer to the question about an alternative ground. Is a body ground just connecting the clip to anything else in the car that's metal and connected directly to the chassis or bodywork please?

Yes basically

 

[toonaroon]

Doh! Thanks Dell.

Hi, so which charger did you go for in the end, and is it ok for normal car batteries?
Thanks
Anthony