Abstract: A hot swap battery module uses a smart chip and an ideal diode controller to control a power transistor so as to implement a multi-step charge or discharge. Consequently, battery modules which have different voltages or battery capacities can be immediately connected in parallel. When the hot swap battery module is hot swapped, the hot swap battery module also can avoid an excessive charge current or discharge current to damage itself.

Abstract: A hot swap battery module uses a smart chip and an ideal diode controller to control a power transistor so as to implement a multi-step charge or discharge. Consequently, battery modules which have different voltages or battery capacities can be immediately connected in parallel. When the hot swap battery module is hot swapped, the hot swap battery module also can avoid an excessive charge current or discharge current to damage itself.

Abstract: A device for detecting an electrolyte overflow is provided, which includes an overflow detecting portion selectively disposed on a carrier. Once the overflow detecting portion contacts with the overflowed electrolyte, an impedance of the overflow detecting portion is changed. Through the change of the impedance, when the electrolyte overflows, an electronic signal is generated by the detection of an electronic circuit. With the electronic signal, the electronic circuit connected to the device is cut off through a protective circuit, so as to prevent the electronic circuit from continuously operating and causing damages to the electronic circuit or the device/system.

Abstract: A rechargeable back-up battery pack used for supply power to portable devices comprises a case which defines a charger receiving space and a battery receiving space and arranges a DC input port and a power output port. A plurality of first latches are formed on inner side walls of the charger receiving space. Pluralities of rechargeable battery units are placed in the battery receiving space. A cover board is covered on the case to enclose the rechargeable battery units in the case. The cover board forms a locking groove. A charger that has a power input port and a DC output port is placed in the charger receiving space. The charger is provided with a mounting hole and several second latches for engaging with the first latches. A lock component is slidably engaged with the locking groove and separably inserted into the mounting hole to detachably integrate the charger with the case as a unit.