The green lights mean that the battery/s is/are charging. When they go out the battery/s is/are charged. If there isn't a battery in the slot then the light flashes. The third light simply means that the charger is plugged in.
By 4ChordsNoNet on 01 December 2014
Although I don't have that particular model, it is a clone of the SJ4000 and looks identical, other than the branding so I imagine they would, yes. The picture of the battery with that camera looks identical to the one in my SJ4000.
By Benkeiuk on 01 November 2015
I managed to get a good 2 hour snorkelling session out of it although it wasn't fully on for all of that time. It had about 2 bars left so I'd say up to 1hr 30 mins if on constantly at highest HD video
By P. Booth on 12 April 2015