- Jul 4, 2017
So I have three Spark batteries. I charged them all before heading to the beach yesterday. But on inserting one of the batteries and pressing the on button it didn't show any power (other two were fine). Got them back home and put them on to charge and one battery showed fully charged within five minutes (I'm assuming this was the supposedly dead battery). I plugged it into the Spark and hey presto it shows full (as do all the others). Has anyone had this issue before?