In this article, I will take apart a Li-ion alternative to the classic 6F22 9V battery. This battery is a Chinese 9V/500mAh USB rechargeable Li-ion battery (sold under the brand name infinite). The ...

If you’re looking for a neat DIY project this weekend, then this DIY 9V Battery USB charger could be a fun gadget to create. With only a few components, including a 9V battery, a female USB port from ...

Intersil Corporation introduced the ISL78692, a Lithium-Ion/Lithium-Polymer battery charger with 4.1 V output. This single-cell battery charger was developed to ...

Energy-storage devices such as batteries continue to change how people live. Here's an article that will point you toward the design of your own linear Li-ion battery charger using today's ...

Beautiful. Gorgeous. Exquisite. Sexy. These are words I’d never normally associate with a battery charger, but the ProCube3 is rather different. Let’s backtrack a bit to the ProCube2. This previous ...

Testing a Li-ion battery charger using its natural load (i.e., a battery) is time consuming because the charging process can take an hour or more. The test time varies widely, depending on whether you ...

Sure you could go buy a USB charger off the shelf, but what fun would that be? Try making one yourself with a little help from a 9V battery and a few extra components. This simple hack on a standard ...