Type 25 Battery and Tyre problems

Hello chaps and chapesses,

A couple of questions which you experienced owners might be able to
help me with.

1. When my van hasn't had any use for over a month it is quite common
that there isn't enough juice in the battery to turn the starter long
enough for the engine to engage. The three times this has happened
using a car to jump it hasn't been enough and each time the AA has had
to come out with an industrial sort of charging unit that has enough
power.

To stop wasting my time and AA call-out allowance I'm going to buy one
of these units - does anyone else have experience of using these or
owning one? I'm basically looking to see where I can get one and what
sort of features I should look for.

2. The rear offside tyre is really misshapen. The wall of the tyre
is really badly worn on one side but fine on the other. I also
noticed that the front right tyre has a lower pressure mark on the
side. Should all 4 tyres be inflated to the same rating, and is this
what has made the rear tyre screwed up? I'm replacing the bad tyre
soon and was wondering if it would be a good idea to sort out the
other tyre with it.

Many thanks in advance for any help you can offer,

Caie