After a recomendation, I have recently bought the NOCO GB40 from Halfords. I don't need the much more expensive higher capacity and max. cranking current of the bigger NOCO's having a 2.3L Fiat diesel. I have, until now, put off buying one of these thinking like Trev that they couldn't possibly start a big diesel. How wrong I was! I have taken out the
battery charger I carry and replaced it with this, which is a quarter of the size and weight of the charger I was carrying. I can charge it from the
solar (via hab batteries).
This is a lithium
battery so has pitfalls ...
Don't keep it fully charged if not being used. (It does tell you in the instructions but some people don't read instructions!)
Highly recomended.
I see from here that some vans have (or have added) a switch connecting the hab. and starter batteries. The hab. batteries will charge the engine
battery up to a level where they are "equal" in voltage, but the construction of a hab.
battery is different to an engine
battery and is not designed to deliver the cranking amps needed to start a diesel. These little lithium batteries will deliver massive current. Have a look here ...
https://franklingrid.com/landing/bl...tionary-batteries-and-engine-start-batteries/
I have looked at the specs. and NOCO quote 24WHr. 1000A. I am used to using AHr. As this is a 12V
battery, it has a capacity of only 2AHr. On the NOCO web page it has how many times it can charge a typical, phone, tablet, earphones, ear pods and more.
https://no.co/gb40
Hope this helps, Dave.