Patent ID: 9705356
Date: 2017-07-11
CPC Classifications: B60L,H01M,H02J,Y02E,Y02T

Claim:
1. An apparatus comprising an electrical power supply system having alterable capacity, said electrical power supply system comprising electrical energy storage modules, and an interconnection interface, wherein each of said electrical energy storage modules comprises two connection terminals of opposite polarities and an electrical energy storage element connected between said two terminals, wherein said interconnection interface comprises two pairs of input terminals and two output terminals for a power supply of an electrical load, wherein each pair of input terminals is connected in a removable manner to connection terminals of a respective electrical energy storage module, wherein said interconnection interface forms branches connected in parallel between said two output terminals, each branch including one of said electrical energy storage elements, wherein each of said branches comprises a rheostat connected in series with a corresponding electrical energy storage element of said branch, wherein said interconnection interface further comprises a device for measuring current passing through each of said branches, and a control circuit configured for controlling resistances of said rheostats of said branches as a function of said measured current so as to maintain a current intensity passing through said rheostats to be below a protection threshold.