Electrics...

Hello
After the van had been sat with no battery for two days, we put a battery on it to move it.
No power, Ok, bring car over, jump leads on still no power to anything in the van.
So while i carried on with brakes got me father to look over it, Fuses under the dash fine, But no power anywhere, apart from on the starter motor.
Any ideas as to what it could be?
Is there any main fuse that all power runs though, as there is not even any cab lights working!
Any ideas would be helpful.

There are two little wires on the + terminal on the battery.

On of them will have broken,

It might be under the van, not in the battery box.

It is very very very common.

Well after closer inspection tonight, It turns out that the little connector on them wires had come undone.

Boyakasha!