External Battery Pack Gives Your Compatible Tripp Lite UPS System Extended RuntimeN/AThe BP192V12RT3US is compatible only with Tripp Lite UPS systems that specify the use of this battery pack (see System Requirements below). Not only does this external battery pack provide extended runtime but it can also be daisy-chained using its input/output connectors to additional external battery packs for even longer extended-run operation. Heavy-gauge cabling with high-current DC connectors is included for simple installation.N/AN/ASmart Battery Communicates with Your UPS for Optimal PerformanceN/AThis external battery pack with included power and data cabling is automatically sensed by the UPS for highly accurate runtime reporting and ideal charge current settings. An additional data cable reports battery pack temperature to the UPS to enable temperature-compensated charging to extend battery lifespan and fast recharge.N/AN/AMounts in 3U of Space in 19 in. 4-Post RacksN/AThis smart battery packs multi-use form factor supports stacking or mounting in 3U of space in EIA-standard 19-inch racks using the included 4-post rack-mounting brackets. The four replaceable internal battery trays can be easily removed to make the battery pack lighter for rack-mount installation. The BP192V12RT3US is also compatible with Tripp Lites 2-9USTAND for upright tower configuration and 2POSTRMKITHD for 2-post racks (both accessories sold separately).