OPzV Battery Operation Manual
12
①
Chec
k-up dis
charge
Disconnect the AC pow
er and discharge the bat
tery to a DOD of 30%
～
40%
The final voltag
e be greater 1.
90V/cell.
Perform a equalizing charge if voltage less t
han 1.90V/cell. Observe for one through two
months. Contact us if no improvement.
④
Conn
ections
Use torque wrench to
check connection
hardware
Refer to
torque values
Re-tight if there is a loose connection
Connector appearance No rust
Clean or replace if rusted connectors found
Three-year Maintenance
Items
Details
Benchmarks
Maintenance
②
Capacity
test
Discharge battery at I10 current to
1.80V/cell
Remained capacity higher t
han 80%
Replace battery
with low
capacity
7 Disposal
VRLA batteries are recyclable. Scrap batteries must be sent to a licensed recycling facility for
disposal. Scrap batteries must be packaged, transported and recycled in accordance with local
and national regulations
8 Operation and Maintenance Precautions
Insufficient Charge
If the floating voltage is not set correctly (too low or not compensate according to
temperature), the battery system will in an insufficient charge state for a long period of time. When
the electricity is out, the battery may not be able to work because negative plate sulfation and the
capacity is decreased.
Over Charge
Please do not neglect the performance of rectifier to transfer floating charge to equalization
charge. If the rectifier cannot transfer charge modes because of its wrong performance or none
adjustment, the battery system is always in an equalization charge state. Thus may cause serious
problems for battery, such as water loss, life decrease, thermal run away deformation, etc.
Too low or too high temperature
We have mentioned that too low temperature will affect the capacity of battery. While too high
temperature will also cause problems, such as water loss, life decrease, thermal run away,
deformation, etc.
Too low end voltage
The end voltage is also an important protection method for battery. The battery shall stop
discharge when reaching a certain voltage (The normal end voltage is 1.80V/cell at 10h rate). If
the end voltage is too low, it will be difficult to recharge the battery and decrease the charge
efficiency, thus reduce the life of battery.
