When configuring external batteries with a Smart-UPS XL you must manually tell the UPS how many batteries are connected. The exception to this is the new SMT and SMX Smart-UPS which use intelligent battery packs and will auto-configure.
Each external battery pack is configured as ""1"" within Powerchute Business Edition or the Network Management card and we recommend no more than 10 battery packs connected.
The exceptions to this are:
SU48RMXLBP - Each unit counts as ""2"" in the interface. Connect a maximum of 5 of these packs.
UX or UXA Series Ultra Battery Packs - Each unit counts as ""5"" in the interface. Connect a maximum of 2 of these packs.
SURT - Depending on their firmware revision, some SURT units may count their internal battery as number 1. (IE: An SURT3000XLT + 1 External Battery would be set to 2 in Powerchute). On these units ""0"" is not an option that is available in Powerchute or the Network Management Card. If you are able to set your unit to ""0"", the first external battery would be ""1"". If you are not able to set your unit to ""0"", the first external battery would be ""2""
All other Smart-UPS count the internal battery as 0. (IE: An SUA3000XL + 1 External Battery would be set to 1)
For Information on which battery packs are compatible with your UPS or what estimated runtimes will be for your configuration, please visit the product page for you UPS at http://www.apc.com"