Once again Redhand proves he knows nothin about nothin with all his drivel !.
( By the way mate, over the last few months my van seems to be taking an " extra turn " when starting in the mornings, the voltage after its been standing all night is 12.17 volts and drops to 9 odd volts when cranking. Its charging around 14.3 volts when running. Am I right in saying it should be holding between 12.4 volts to 12.8 volts when standing ?. Its on a 2.0lt diesel van three and a half years old. )
In relation to the OP,s question, I,ve got a 110 Ah battery on my TD5, and its NEVER gone flat, even after a whole nights shooting with all the lights on and 2 hadlamps.
Del.