These first 5 faults are actually the Quiescent errors I was talking about, you can google them just stick a 0 at the start of each fault code
2272 no load current stage 1 sporadic
2273 no load current stage 2 sporadic
2276 no load current current stage 5 sporadic
2274 no load current stage 3 sporadic
2277 no load current stage 6 sporadic
The AMP & radio module in the boot are the common modules that cause a lot of quiescent errors, basically one on the modules is not going to sleep and is drawing power which the battery ECU is detecting.
If it were my car I would start with the following,
Get the battery checked make sure all the cells are good.
make sure you fully charge the battery using the terminals under the bonnet (empty battery will take over 24 hours to fully charge, a quick 30min drive is just not going to do it)
Get the glowplugs changed (all of them not just the 2 dead ones, as if 2 are dead then the others are most likely on there way out.)
Clear all the fault codes and see what comes back after a few days
If you still getting battery drain pull the fuses for the AMP & radio module over night and see if that helps, if that does start making a difference then try and find out which module is causing the drain.