APC SC450RM1U battery pack Smart-UPS 1U replacement.
Replacement APC Smart UPS SC450RM1U battery set, rechargeable sealed batteries for this 1U rack mount uninterruptible power supply.

Computer backup device battery repair kit APC.
Non spill No maintenance high quality backup batteries.

• APC SC450RM1U battery replacement

These are non-spillable safe not-hazardous batteries recommended for such a installation where they are normally mounted on their side inside a rack system, but of course they can be used as a tower as well, Life expectancy in such a application would be between 3-5 years, this can be quite drastically reduced if the communications room they sit in does not have adequate ventilation.

Chemistry of battery:
Voltage of battery: 6-volts
Capacity of battery: 7 Amps
There are two batteries in this set for the APC SC450RM1U UPS system the physical size of each are as follows:
length = 151mm
Width = 34mm
Height = 94mm