starting issues again

[Fez_uk]

Went to start it at work, starter tries to turn but it doesn't fully turn and is very slow. odd (Only main battery is connected at this point)

Link my 2nd battery up after a minute it starts as normal with both connected electrically.

Measuring the main battery now without it connected to the vehicle voltage is falling pretty fast. Right now its at 12.23v.

14v ish when battery is running so its charging fine (measured from centre of battery terminals)

Anyone got any ideas? I'm swaying towards a new battery.

 

[Fez_uk]

just tested it again, 12.03v

I think it needs replacing

 

[geoffdown]

just tested it again, 12.03v

I think it needs replacing

if its dropping like that not connected then sorry new battery :doh

 

[Fez_uk]

It was on its way out months ago to be honest. But overnight got so bad it needs changing.

Would of needed to change it as I plan on getting a winch anyway.