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Table 14. Battery
Configuration
3700W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM
4200W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM
Battery Type CSB GP1272 7.2 Ah or YUASA NP7-12 7Ah
Voltage 3750W: 192 Vdc internal, 192 Vdc/30A EBM
4200W: 192 Vdc internal, 192 Vdc/30A EBM
Fuses UPS: (1) 30A fuse
EBM: (1) 30A fuse
Type Sealed, maintenance‐free, valve‐regulated, lead‐acid
Charging Approximately 4 hours to 90% usable capacity at nominal line and no
supplementary power supply load
Monitoring Advanced monitoring for earlier failure detection and warning
Battery Runtimes* 3750W internal batteries: 5 minutes at full load/21 minutes at half load
4200W internal batteries: 5 minutes at full load/16 minutes at half load
3750W with one EBM attached: 14 minutes at full load/43 minutes at half load
4200W with one EBM attached: 11 minutes at full load/35 minutes at half load
*Battery runtimes are approximate and vary depending on the load configuration and battery charge.
Battery
DC/DC
Input
Filter
Output
Filter
Bypass
Charger
DC/AC
Inverter
AC/DC
Boost
Figure 29. Online UPS Block Diagram