Light and Motion 11.1 V 3 Cell Battery It drives the Seca 800 on high for 2 hours and the Stella 300 for 3+ hours. . Our lightweight 3 cell Li-ion pack is easily carried in a jersey pocket, hydration pack, or strapped on a top tube or seat post. It makes a great back-up battery for the 1400, giving you an extra 1:45 run time for extended rides