Brick-Compatible Motor System Battery Box

The 8881 battery box houses batteries internally and delivers clean motor system power through a standard output connector port. Connect any PF-style motor, LED cable, IR receiver, or extension wire that uses the gray 2×2 plug. The prominent orange toggle switch on the right face puts power control exactly where you need it: visible, accessible, and unmistakable. Pin holes on all faces allow the battery box to mount cleanly inside any beam frame or standard brick build in any orientation. A small green LED indicator confirms power status at a glance.

What's Included

• 1 × 8881 Motor System Battery Box per pack
• Light grey ABS rectangular housing with pin holes on all faces
• Orange toggle power switch on right face
• Motor system compatible output connector port
• Green LED power indicator
• Dark grey battery compartment cover on top face (batteries not included)

Accessory Details

• Body: Light grey ABS, large rectangular housing, pin holes on all faces for versatile in-build mounting
• Top Face: Dark grey battery compartment cover with ribbed ventilation lines, pin holes along right edge
• Left Face: Mounting face, 2 rows of pin holes, X-cross brace pattern detail
• Right Face: Prominent orange toggle power switch, output connector port, small green LED power indicator
• Switch: Orange toggle, on/off power control, visible and accessible in any mounting orientation
• Output: Motor system compatible connector port, connects directly to motor system motors, LED cables, IR receivers, and extension wires
• Batteries: standard AA, not included
• Pack: 1 battery box

Perfect For

• Powering motor system motors in vehicles, cranes, and heavy machinery MOC builds
• Powering LED light cables (8870) in train, building, and diorama builds
• Providing battery power for RC and IR remote-controlled builds
• Integrating a clean power source directly into any standard Bricks-compatible build
• Replacing or upgrading battery boxes in existing powered Bricks-compatible builds
• Gifts for mechanical builders and motorised MOC fans, made for young builders

Compatibility

Works with PF-style motors, 8870-type LED cables, IR receivers and 8869-type extension cords that use the gray 2×2 plug. The plug presses onto the 2×2 stud contacts on the box. There is no socket hole. Pin holes on all faces accept standard pins. Batteries not included.

What You Need to Make It Run

• Motors and lights will not run on their own. They need a power source: a battery box, a rechargeable lithium box, or a receiver connected to power. Each is sold separately.
• AA and AAA battery boxes do not include batteries.
• How it connects: the gray 2×2 plug presses onto the 2×2 stud contacts on the battery box or receiver. There is no socket hole to plug into.
• A basic battery box gives on and off (some also switch direction). For remote speed control you need a remote and receiver.
• Not every part uses the same plug. Check the plug shown in the photo for the option you pick, and message us before ordering if you are not sure.

One battery box. Every build powered. Every time.

Product photos may include display scenery or other items that are not included. Check the selected option and What's Included before ordering.