Sterling charger failed after less than 3years and they want £245 to replace

[sailinglegend420]

Dependant on budget I would go for:
1 x Centaur 12V 100A
Or 2 x Centaur 12V 80A

Are they suggesting their chargers can be connected in parallel?

Your alternator, solar and wind are all in parallel - that's OK. Even Mr Sterling recommends it because his largest charger is only 60 amps. One regulator will switch of earlier than the others, but only in the absorption phase when the other(s) will give the batteries as much as they can take.

A 100amp and an 80amp is becoming expensive. You might like to consider the Phoenix multi Inverter/charger, a 3Kw inverter and 120 amp charger - that's what we have.

 

[nigelmercier]

Your alternator, solar and wind are all in parallel - that's OK.

But surely it will totally confuse a smart charger.