About: I love working on and modifying toys for kids both big and small. Follow me on here to see my latest completed projects or follow me on instagram to see sneak peaks of what's brewing in the workshop!

Today I'll be converting a Power Wheels battery-powered ride-on toy from 12v sealed lead power to 18v lithium ion power. This is a relatively simple mod that will add about 50% more speed to your kid's BPRO.

Here's an overview of the tool set you'll need to complete a project like this. I don't always use all of them, but some of the handiest stuff is:

Tools:

Soldering Iron, Mini screwdriver set, Wire Strippers, Crimpers, Mini Pliers, magnetic parts dish, Multimeter

Components:

Fuse Holder (absolutely vital), 30A ATC Fuses, 10ga wire, Heat Sinks (optional, but help keep motors cooler for longer life), 18v Batteries (although you ideally have extras of these laying around if you're doing this mod), and either a broken tool or extra battery charger to salvage the battery socket from.

SUPER IMPORTANT: No matter what battery mods you do to a kids ride-on, you need an inline fuse. DO NOT SKIP THE FUSE. Any time you add an aftermarket battery to a BPRO, you NEED a fuse. Stock batteries have internal thermal fuses in them, so changing batteries necessitates adding an inline fuse holder. If you are unsure of any of this, DON'T DO IT.

Secondary Warning: Overvolting is hard on stock drivetrain components. Expect to wear out gearboxes and motors more quickly when you apply extra voltage. Mitigate this by keeping total rider weight as low as possible (don't sit three kids on this thing), do not rapidly shift directions while in motion, allow cooling periods between battery changes, just take it easy and it'll last longer.