C&D Technologies 41-7525 VRLA Batteries (rack mounted systems) - Manual (Page 6)

Storage Instructions
Store batteries in a clean, dry cool area away from radiant heat sources. Elevated storage temperatures
increase the self-discharge rate of the batteries and reduces the storage time between required
freshening charges. Fully charged batteries with an electrolyte specific gravity of 1.280 or higher can
be safely stored at temperatures as low as -20 degrees F.
Batteries in storage should be given a freshening charge at 2.4 volts per cell for 24 hours every 6
months or when the open circuit voltage declines to 2.07 volts per cell (6.2 and 12.4 volts for 6 and 12
volt batteries respectively).
Additional details concerning storage and inventory control are contained in the document "Self
Discharge and Inventory Control", technical bulletin #41-7272.
Preparation of
Battery System
Installation
Drawings
(User
Prepared)
Rack
Assembly
and
Installation
Receipt and
Inspection of
Battery
System
Components
Unpacking and
Transporting
Battery
System
Cells
Storage of
Battery
System
Components
Required
Detailed Intercell
Connection and
Cable Termination
Drawings
Placement of
Cells on
Rack and
Installing
Intercell
Connections
Installing
Intertier,
Interrow and
Intrarack
Cable
Connections
Installing
Battery System
to Charger/
Rectifier/Load
Cable
Connections
Pre-Operational
Checkout and
Initial
Freshening
Charge
Complete
Cell/Unit
Retaining
Rail
Installation
Operational
Qualification
Checkout
and
Warranty
Registration
Seismic
Rack
To
Storage
Standard
Rack
Figure 3 - 12V VRLA Battery System Installation Task Flow Chart
41-7525/0514/CD 6 www.cdtechno.com