To the electrical power system reliability request high situation, USES two group of accumulator cell parallel operations, the floatingpowersupply way generally.
在对电源系统可靠性要求较高的场合,一般采用两组蓄电池并联运行、浮充供电的方式。
2
Note that as long as the external powersupply is active, the GND pin may not be floating.