Abbreviations
VRLA - Valve regulated lead acid battery.
SLA - Sealed Lead-acid.
CCV - Closed - circuit voltage.
OCV - Open - circuit voltage.
WPC - Watts per cell.
Pb - Chemical symbol for lead.
UPS - Uninterruptible power supply.
Ah - Amp hour. The unit of battery capacity.
DOM - Date of manufacture.
EOD - End of discharge.
VPC - Volts per cell.
NC - Number of cells.
Vf - Float Voltage.
VS - Starting Voltage.
IAV - Average current.
Sg - Specific gravity
cAn - Defined capacity of the battery to the 'n' time period.
20 hr Rate - The capacity a battery will deliver over 20hrs.
Definitions
Battery - one or more cells
Float/Standby - Continuous charging for use in an emergency or back-up application
Cyclic - Continual discharge/recharge application often associated with traction applications.
Battery String or Bank - A number of batteries connected in series will constitute one string. Strings can then be connected in parallel to achieve the required capacity.
Monobloc - A phrase used to describe a multi - celled single block.
Wet/Flooded - Open-vented lead-acid cells which need topping up, i.e. not maintenance free.
Stationary -Applications using static placed batteries.
Top - charging - A service charge during or after storage, usually at a level slightly higher than normal float V.