Over the years as a parent I've purchased 3 New Power Wheel riding toys, the first being 16 years ago, when I had very little experience on items such as this. My girls 4 & 5 years of age received a Power Wheel for Christmas, they intially loved their set of wheels when it was new. Overtime I noticed the decrease in.the 12 Volt Batteries power, I couldn't understand why such a new battery would.go dead so fast when I took special care of charging it appropriately, never over charging or under charging it. I checked into a replacement 12 Volt Battery by Power Wheels, and nearly fell out when I saw the price! I felt forced to buy the battery because there's not a lot of options when it comes to 12 Volt Batteries for Power Wheels. The battery cost me nearly a $100, and didn't even come with a charger! That set me back another $20 bucks! I checked around at alternatives, but there's not much out there ubless you plan on modifying the rising toy The battery is heavy, but easy to install and lasts just a short while before needed to be recharged. When I watch my girls play in their car, the cost of the battery slips my mind since they have so much fun using it.