220v external charge

[MOSHER]

Hi.
Does the 220v external socket charge also the main battery or only the leisure baterries?

 

[TripleBee]

My T5.1 from 2009 charges all 3 batteries.
The leisure batteries are really charged. The engine battery is at least trickle charged.
I don't know about the other generations. Some will say you will only charge the leisure batteries, and some will say all 3.

 

[WelshGas]

Hi.
Does the 220v external socket charge also the main battery or only the leisure baterries?

By design, as @TripleBee says, the mains charger charges the Leisure batteries but due to some electrical crossover the engine battery is trickle charged BUT only when the leisure batteries are full.
This has been confirmed by some members owning T5/5.1/6.
This will NOT charge a flat engine battery.
You can confirm your vehicle does it by using a multimeter to measure engine battery voltage then plugging into EHU for 24hrs and then re-measuring engine battery voltage while still plugged into EHU. Engine battery voltage should have risen to about 13.4v.
I think the T61 does charge the engine battery by design while on EHU.