The Fisher Price S16V is a Toy system that requires a 16V 60Ah AGM replacement battery. The compatible Universal Power Group replacement is the UPG 16BAT-U 16V/12V 60AH I6 AGM Battery (16BAT-U), a 16V 60Ah AGM sealed lead-acid battery. This battery delivers up to 960 watts of standby power. It weighs 50.71 lb, uses I6 terminals, measures 10.24 L x 8.29 H in, and has right polarity. This is a direct drop-in replacement for the Fisher Price S16V requiring no modification to the device.