Even well-maintained OPzV batteries degrade over time. Watch for these signs:
1. Reduced Runtime
- If the battery discharges much faster than before, capacity has likely degraded.
2. Increased Internal Resistance
- Measured with a battery analyzer; high resistance indicates aging.
3. Swelling or Leakage
- Physical damage or bloating suggests internal failure.
4. Inability to Hold Charge
- If voltage drops rapidly after charging, replacement is needed.
Replacing batteries at the right time prevents system failures.
