Alpha Technologies AlphaCell OPzS - Manual (Page 14)

OPzS-BATTERY 14
4.0 Battery Storage Before Installation
4.1 General
Batteries should be unpacked, installed and charged as soon as possible after receipt.
However, if this is impractical, follow the instructions below for storing the battery before
installation.
Stationary battery cells can be fi lled with electrolyte and charged - fl ooded or dry-charged.
Store batteries indoors in a clean, dry, cool and frost free location (10 °C – 30 °C). Storage
at higher temperatures will result in accelerated rates of self-discharge and possible
deterioration of battery performance and life.
Do not stack pallets. Damage may occur and the warranty will be voided.
4.2 Storage Interval
4.2.1 Filled and charged cells
Filled and charged cells should be recharged every 90 days to prevent their failure.
Use the date of battery shipment to determine freshening charge requirements.
Storage times exceeding the above may result in plate sulfation, which may
adversely affect electrical performance and expected life.
4.2.2 Dry charged cells
Dry charged cells may stand for a longer time as long as they are sealed and stored
with as little temperature variations as possible within 24 hours (< 30 °C, < 50 % H).
In the winter the storage room should be safe from freezing.
Maximum total storage time before installation is 2 years from the date of shipment
from the factory to the customer.
4.3 Advanced Preparation
If storage time is likely to be exceeded, make advanced preparation to have an adequate
charger available and adjacent to an appropriate AC supply voltage. Positioning of the cells
to accept the temporary intercell connectors is another consideration of advance planning.
Make every effort to get the battery connected to the charger before the expiration of the
storage period.
NOTE:
Failure to charge as noted voids the battery warranty.