How do.

I have a Defender 300tdi (1994) that has a split charge set up with a gel auxiliary battery. I have a large winch but I also want to be able to run a number of electrical items when overlanding. I will be pulling a Sankey "expedition" prepared trailer that will have its own leisure battery (100AH deep cycle) and will have a fridge/freezer in it too.

I understand that I will need to upgrade the alternator of the defender and so my questions are:

What is the best type to get? and

Where do I get it from?

All the best
Rock

Usually defender alternators are 65amp - you could fit a discovery alternator (100amp) and it will fit straight on with the right pulley fitted

was thinking about this upgrade, will there be any issues will the extra output on accseseries, fuses etc.

You can add another alternator quite easily with a bracket and belt. Have a google search someone sells the kit. Would perhaps take the demand off the original alternator and keep the auxiliary circuit completely separate.

Great advice thanks.