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11. Maintenance
Eternity Technologies OPzV are sealed-maintenance free lead-acid
batteries and need no water addition.
Cleanliness
The containers and lids must be kept dry and free from dust.
Cleaning must be done only with a damp cotton cloth.
Avoid static discharges generated during cleaning.
Voltages
Individual cell voltages will vary greatly when the cells are first put
into operation. This is expected and variation will start to decrease
within the first 12 months. Monitor these as per below. If there isn't
any significant change in the voltages after 12 months, an additional
equalisation charge should be performed.
Please see graph below for expected voltage variation vs time.
Every 6 months:
- Check for evidence of damage on the battery and equipment.
- Check and record the total battery float voltage, the voltage on pilot
cells* and temperature.
Once a year:
- Check and record individual cell voltages.
- Perform a discharge test according to IEC 60896-21 standard until
the battery shows signs of degradation and then every six months
thereafter.
Keep a log book to record all maintenance and inspection operations,
which will be helpful to monitor long-term changes of the battery
condition.
Do not attempt to open the safety valve. Opening could cause
damage to the battery.
*Pilot Cell
For regular monitoring of the battery condition, select one cell near
the middle of the battery string as a "pilot" cell (for battery consisting
of more than 60 cells, it is advisable to select one pilot cell out of 60).
Additional Information
For any further information on Eternity OPzV VRLA Standby & Solar
batteries, please contact:
Eternity Technologies FZ-LLC
Al Hamra / Al Jazeera
PO Box 35102
Ras Al Khaimah
U.A.E
Phone + 971 72 433 535
Fax + 971 72 433 536
Web www.eternitytechnologies.com
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