Stationary VRLA Batteries,
Installation and Operation Instructions
Page 5 of 16 www.baebatteriesusa.com Rev: 0219
3.1 STORAGE AND MAINTENANCE: VRLA BATTERIES
BAE VRLA Gel batteries may be stored without further charging only for a limited period
because of self-discharging and related chemical processes.
After a maximum storage period of 24 weeks at 25°C (77°F) or less (or 12 weeks at
ambient temperatures above 25°C (77°F)) the batteries must be charged by connecting
to a proper charger providing a continuous float charge of 2.25 volts per cell or providing
an equalization (boost) charge to the cells (See Section 8.2). Storage at high
temperatures results in accelerated rates of self-discharge and increases the frequency
of required charging if the cells are not on constant float charge.
Storage times exceeding the above maximums may result in plate sulfation which may
adversely affect electrical performance and expected life.
Adequate freeze protection must be met for low temperature storage, as this will damage
the battery and cause potentially hazardous leaking. A fully charged battery is more
resistant to freezing than a discharged one. As a battery loses charge, its specific gravity
decreases causing it to have a higher freezing temperature. The freezing temperature
versus specific gravity is shown in the table below. BAE VLA batteries have a specific
gravity of 1.240 kg/l at 68°F.
Specific Gravity
(68°F)
Specific Gravity
(68°F)
1.150 -15.1 5.0 1.250 -54.3 -65.0
1.200 -28.0 -18.0 1.300 -71.1 -95.0
3.2 STORAGE AND MAINTENANCE: BATTERIES REMOVED FROM OPERATION
Batteries that have been in service and taken out of operation must be maintained on
permanent float charge or must receive a periodic equalize charge not to exceed every 6
weeks at ambient temperatures at 25°C (77°F). Other conditions listed in Sections 3.0
and 3.1 apply. For extended storage periods please contact BAE USA or your local
representative for recommendations.
4.0 UNPACKING & HANDLING
Single cells and multi-cell blocks may be received packed in individual Styrofoam
containers with shrink-wrap or packing cases, surrounded by foam, shrink-wrap and
attached to a wooden pallet. Carefully open the cases or carton to avoid possibly
damaging any of the cells or blocks.
NOTE: When removing the blocks or cells from the containers
or cases always lift cells from the bottom, never from
the connectors or cell posts as this can damage cell
covers or post seals and void your warranty.
NOTE: A BAE lifting sling may be used on the larger capacity
cells and blocks - slip the lifting sling under the cell and
use the loops in the sling for hoisting the cell. Four
battery lift sizes are available based jar dimensions.
•Small Block Lift Kit, L = 272 mm (10.7 in)
•Large Block Lift Kit, L = 385 mm (15.16 in)
