littleBits 9V Battery + Cable

Bought this to replace the battery in my kid's science project kit and it powered everything without any loose connection issues. The cable clicks in firmly, which is nice since the old one kept wiggling out.

The 9V battery and cable snapped right into my littleBits modules and kept my son's circuit project running all afternoon without any flickering. It's a simple accessory, but the connector fits snugly and I like that I can just swap in a fresh battery instead of recharging.