[Jeremy] is building a wireless Wii nunchuk, so he needs a small battery that won’t short out or get punctured in the confines of the controller body. A single coin cell holder is already a bit ...

Rechargeable coin cell batteries are great for all your small projects. They look exactly like regular coin-cell batteries, but in a shocking turn of events you can recharge these little guys.

Product is expected to runs on coin cell battery CR2450 or CR2430 for Few years. While testing we have found that when driving display continuously MCU stops updating display. When we measured the ...

The very bottom edge has four capacitive touch sensors for menu navigation and is powered by a rechargeable LIR2450 coin cell ... that test out the hardware. The board can be powered over usb, a ...

LIKE BOING BOING BUT NOT THE ADS? CLICK HERE TO GO AD-FREE! Yesterday a redditor named joshcam posted a photo of a coin cell battery with purple colored dots arranged in three concentric semicircles.