High-rate-discharge lithium-ion (Li-ion) battery pack applications require robust, reliable circuit protection. At the same time, increasing market demands for lighter, smaller equipment means these ...
The simplest protection method for battery packs is a fuse that opens if the system draws excessively high current. However, conventional one-time fuses open permanently and render the battery useless ...
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 ...