[Jeremy] is building a wireless Wii nunchuk, so he needs a small battery that won ... This slides in nicely between the coin cell and preshrunk tube. A little more heat will make a good connection ...

[Jay Kickliter] built his own coin cell battery recharger. This won’t work on the vast majority of coin cells as they are manufactured as disposable parts. But there are rechargeable options out ...

The product replaces the standard CR2032 coin cell battery in the Bluetooth-based location tracker with two AA batteries to provide extended power capacity. The TimeCapsule case requires users to ...