Ok so Trev has his own charge system, it's basically a split charge relay setup BUT he's cabled from the alternator to his leisure
battery with very heavy cables, this means he'll be charging at somewhere around whatever the alternator can supply, because of this higher current flow his SCR is a very high current relay.
Those Carbons have a maximum charge current, if you download the tech spec and zoom in on the label on the top of the
battery image you'll see 24A max charge current. I've got an idea that this has now changed to 22 but I could be wrong. Yes it's naughty that they don't openly state this in the literature and you have to wait until the
battery arrives before you find out
![Frowning face :frowning2: ☹️](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/2639.png)
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A normal MH charge system comprises of thinner cables than what Trev's using and also there are smaller fuses, PCB tracks connectors and probably other relays etc too, this all increases wiring resistance and that resistance limits the charge current. The maximum current will vary from van to van because of all of the variables re cabling etc but obviously you have your
DC clamp meter so you'll be able to check it, it will be highly when the
battery is fully discharged and then the current will drop off as the
battery charges up, probably won't exceed 20A anyway.
Sorry to be the harbinger of bad news but please don't shoot the messenger