SITOP UPS1100 Battery module with warning not closed Lead batteries for SITOP DC-USV Modules DC 24 V 2.5 Ah The maintenance-free battery modules with SITOP UPS1100 temperature-tolerant pure lead batteries are an important component of the DC UPS systems. When combined with a 24 V power supply and a UPS1600 module, they provide hours-long buffering against power failures. The intelligent battery management of the UPS1600 charges the UPS1100 according to the optimum temperature-controlled charging curve and monitors the status (operating data and diagnostics information) of the connected battery modules using the Energy Storage Link. Up to six battery modules can be connected in parallel for longer buffer times. Mounting is on a standard mounting rail or directly on a wall.