Here’s an Instructable on how to replace the button cell battery on a Nike+ receiver for as little as the CR2032 battery costs you. To get a replacement receiver costs $20. Replace battery in Nike+ receiver for under $5 [via Lifehacker]
Emeka sent in this nice DIY battery backup for your computer, or any other device. The article is based on 220v, but could easily be adapted for 110v. South Africans, as elsewhere in Africa are experiencing almost daily – “load-shedding”. The country cannot meet the demand for electricity resulting in daily scheduled power-outages nationwide. Make […]
Using rechargeable batteries is a good idea, but charging them is sometimes a lengthy process. This DIY battery charger could solve that problem. The charger has several safety features, including protection from overheating, and is well documented. – Link Related: DIY battery charger – Link
For electronics projects simple and small, consider using an old 9V battery case It provides a built in snap, easily connecting it to a new battery for power. When using a battery as a case, keep in mind that: – the inside of the battery should be insulated (with blue masking take in my case) […]
