Dynamite Passport 100W - Lead Mode Question

[Shuntfield]

Hi All,

a bit new to this so if this is the wrong place or a dumb question then I apologise before I start.

I have just got one of the Dynamite Passport 100W chargers.

I am wondering if the Pb mode will allow me to charge a regular 12v Leisure Battery? Essentially the one I would be powering the charger from at the Pits!

Or am I better off buying a regular car battery charger?

Thanks for any help!

Graham