Electronic kits and parts - build, code, and learn!
Connect batteries or battery cage wires to 2.1mm sockets with this handy plug. The terminals are even marked with positive and negative to help connect the correct wires!
You can use this plug with battery cages like these or these.
Kitronik Mini Controller for Raspberry Pi Pico
Kitronik Bluetooth Stereo Amplifier Module (incl 2x 3W speakers)
Kitronik LAB:bit educational platform for BBC micro:bit
Kitronik Wireless Steady Hand Game