Had my battery and alternator checked and showing as running fine, checked all the earths which are also ok but the commander only shows between 10.5 to 12.5 volts for battery voltage.

Is there anything else that could cause this problem, as the car feels a bit sluggish and less responsive when battery voltage is down.

Banny

 

When is it showing this voltage? When the engines running or not?
If you have a multimeter (really handy and cheap) you can double check what the battery voltage is, and compare it to the Pfc reading.
FYI engine on should be 13.6 - 14.3 volts ish, and engine off should be 12.4 - 12.7 volts.

 

the best thing tol do is buy a new terminal from any decent motor factors/halfords. only a couple of quid and theen its not a bodge but a proper job

 

lol, I think you've got the wrong post (no pun intended)..

 

Turns out the earth to the ecu was loose, now showing 13 - 13.5v on the commander but Im thinking if I add a better earth to the ecu this should further improve the situation.

Banny