Vanagonites,

I have an '89 Westy and would like to install a second battery.

The relay is available under the driver's seat and I think it's wired and
ready to have one dropped in and hooked up.  I'd like opinions on any
options or other considerations to make when putting another battery in.

I have had the following recommendations so far:

i- add a switch that allows one or both batteries to be connected at on
time;  this also allows one battery to be used as a starter and the other as
an auxiliary

ii- put in a voltage regulator;  I have also been told this is not necessary

iii - run two of the same batteries;  this helps with to balance the
charging characteristics

Other ideas to research?

Thx

Chris