With a spare Peg Prego 6-Volt Battery on hand, your little one will never be left without use of their trusty, battery-powered wheels. Simply swap out the used-up battery for the fully charged spare and theyll be off to the races. Fully sealed and maintenance-free. Compatible with Peg Pregos Choo Choo Express, John Deere Mini Power Loader and Chase IH Lil Tractor Trailer (each sold separately).Made in the USA and Imported. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Batteries.