这是一个电池测试仪器，电路以及程序都提供了，测量 过流 过压 欠压 短路保护。非常实用，已经有正式产品了，希望你们能喜欢。对了 是以单片机 52 为核心.-This is a battery-testing equipment and procedures to provide a circuit to measure voltage over-voltage over-current short circuit protection. Very useful, already have a formal product, and I hope you like it. Based on a single chip 52 as the core.