Alternator output

[Somerandomguy]

I'm struggling with poor battery life still, and had assumed that I had a parasitic drain which Ive not got to the bottom of.

After checking all of the fuses for current, i found nothing so am wondering if I have a problem with the BEM or alternator. Ive been monitoring voltage whilst I drive, and it seems a bit low, ranging from 12.7v up to 13.6v depneding what's switched on.

So im thinking that rather than a drain, the battery isnt charging - do any of you know what your normal voltage is?

Cheers