The requirements for a UPS system may change over time. This can be, for example, adjustments in the data connection, a changed output power of the UPS or the extension of the autonomy time. Depending on the upgradability of the UPS system, a changed requirement does not necessarily mean a new purchase. Often, the existing system can be inexpensively modified or extended. Statron has a great deal of experience in the expansion of UPS systems.