Alter a small solar water pump to run off battery ? Answered

I bought a small smaller pump off amazon (1.2 Watt Solar Power Water Pump Garden Fountain - for fountains, waterfalls and water displays)  the solar panel is crappy and very finicky ( cheep) and does not hold a charge .. I was hoping to alter the power source to another solar panel or add another panel that comes off those solar lights that holds a change .. Alternatively modify to use a battery source with a on off switch .. 
I know I don't need to alter the pump just want a continuous  power supply. Current Specs that cam  with the unit : solar power supply 7 v 1.2 w ( if that !) power of pump 7v , 1.1 w/ max lift 100 cm / size of solar panel ( 100mm x 100m x 25 mm) / max outflow quality of pump 180lh max water height 30 60 cm ( if that!)