![My first Lego Mod! I added motors and an RC receiver to the 42121 Excavator. I am not happy with the placement of the battery box but couldn't get it inside of My first Lego Mod! I added motors and an RC receiver to the 42121 Excavator. I am not happy with the placement of the battery box but couldn't get it inside of](https://i.redd.it/y096zl5c00391.jpg)
My first Lego Mod! I added motors and an RC receiver to the 42121 Excavator. I am not happy with the placement of the battery box but couldn't get it inside of
![LEGO PART 58119 Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Cover [Complete Assembly] | Rebrickable - Build with LEGO LEGO PART 58119 Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Cover [Complete Assembly] | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/parts/ldraw/71/58119.png/250x250p.png?1658379074.902483)
LEGO PART 58119 Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Cover [Complete Assembly] | Rebrickable - Build with LEGO
![LEGO MOC Hogwarts Express MOD - Motorized with Power Functions by cjtonic | Rebrickable - Build with LEGO LEGO MOC Hogwarts Express MOD - Motorized with Power Functions by cjtonic | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-52483.jpg/1000x800.jpg)
LEGO MOC Hogwarts Express MOD - Motorized with Power Functions by cjtonic | Rebrickable - Build with LEGO
RacingBrick - Here it is, the LEGO Technic 42093 Hot Rod RC mod with Power Functions! This car has an M motor, a Servo, AAA battery box and an IR receiver squeezed
![Rechargeable Battery Pack Mod - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums Rechargeable Battery Pack Mod - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums](http://www.brickshelf.com/gallery/Hopey/RechargeableMod/battery.jpg)
Rechargeable Battery Pack Mod - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
![MOD: PF battery box with 2x 9V Block - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums MOD: PF battery box with 2x 9V Block - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums](http://farm9.staticflickr.com/8075/8339494534_59bdf96cf9_z.jpg)
MOD: PF battery box with 2x 9V Block - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
![Build your LiPo rechargeable battery for Control+ and Powered Up hubs. - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums Build your LiPo rechargeable battery for Control+ and Powered Up hubs. - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums](https://philohome.com/pupbat/bats-v.jpg)