Most likely answered my own question, just want reassurance.

I had it in the back of my mind you couldn't charge a battery still connected in the car that has the stop/start feature, I thought it had to be removed.

On reading the manual it says it's ok to do this but you must connect the negative charger lead to an engine earth point, not direct to the negative terminal.

The only exception to this and the battery must be disconnected is if using a fast charger type equipement, mine's a trickle charger (like a C-Tek/Optimate)

 

So all good to go ahead?

 

Reason, I tested the battery and it's showing a low reading but still starts the car. I've used the car very little over the last 3 weeks, only short trips the battery needs a boost.

@MickA "Connect negative to an engine earth" is now normal practice for both charging and jump-starting.

5 hours ago, KenONeill said:

@MickA "Connect negative to an engine earth" is now normal practice for both charging and jump-starting.

 

Thanks, job done now battery on charge,  seems to be doing it's job, negative hooked up to the engine block.