Every parent knows the constant cycle of buying or recharging batteries for kid-related products—but the Instructables web site has some guides to modifying your gadgets to use AC power instead ...

Switching from battery to AC power on your Dell laptop has battery-saving benefits. If you use your computer on the go in airports, meetings and conventions, your battery must last long enough to ...

If you have any gadgets that only use batteries, and don't accept AC power, you can convert them to run on the grid by building a fake battery pack and hooking it up to a power adapter.