Amazon.com: Nerf Pro Gelfire X MrBeast Full Auto Blaster & 20,000 Gelfire Rounds, 300 Round Hopper, Rechargeable Battery, Eyewear, Ages 14 & Up : Toys & Games
2000mAh High Catapity 18650 Lithium Battery Replacement For 10C Nerf Electric Toy Soft Bullet Gun - AliExpress
Nerf Gun Mod, Upgrade to Rechargable Lithium Battery - YouTube
Nerf Rechargeable Battery
Nerf Pro Gelfire X MrBeast Blaster, 20,000 Gelfire Rounds, Hopper, Rechargeable Battery - Nerf
This battery pack brings Nerf guns into the modern era - CNET