Charger is ONLY compatible with Power Wheels Toddler 6-Volt (4.0 Ah) Blue Battery and SafeAMP 6-Volt (4.0 Ah) Battery.
Charger will ONLY fit the following Power Wheels: Thomas & Friends Thomas with Track, Lil' Quad, New Beetle, Harley-Davidson Rocker and Disney/Pixar Cars 2 Lil' Lightning McQueen
Charge your new battery for a full 18 hours before first use.
Always recharge for at least 14 hours, but not more than 30 hours.
IMPORTANT: To prevent premature battery failure! Fully charge battery before storage.