Why would someone want to use power tool batteries in a nerf blaster? Besides the convenience, flexibility. This is how you can creatively incorporate the battery back into a blaster. : r/Nerf
This battery pack brings Nerf guns into the modern era - CNET
3DG G17 Glock 11.1v 420mah Lithium Battery Paintball Air Gun Nerf Toy Guns Upgrade Accessories - AliExpress
Dart Zone Max Omnia - NO BATTERY - Blaster-Time
Nerf Gun Mod, Upgrade to Rechargable Lithium Battery - YouTube