06-03-2014, 04:29 PM
That ups may even have sockets on the board for another set of batteries
may have a separate circuit for the second set of batteries with separate protections, sensing and charging
the charging circuit may not work well with the extra load - just like adding a second battery in a car trunk for a amp can tax a small alternator - sometimes you get away with it until one battery gets discharged more than normal then you've got problems
it may work fine as kind too
APC may have a schematic and instructions on how to increase the battery capacity the 'best way'.
may have a separate circuit for the second set of batteries with separate protections, sensing and charging
the charging circuit may not work well with the extra load - just like adding a second battery in a car trunk for a amp can tax a small alternator - sometimes you get away with it until one battery gets discharged more than normal then you've got problems
it may work fine as kind too
APC may have a schematic and instructions on how to increase the battery capacity the 'best way'.