To ensure safe operation of the whole system, check the battery status at least once a year and whenever you suspect that the battery may be faulty. Old or faulty batteries pose a safety hazard to the operator.
BMU801 monitors the battery condition and reports of a faulty battery.
In systems that have BMU801 connected to Vaisala Data Management Unit DMU801, the battery status is reported through DMU801. You can also check the battery status from the BMU801 battery LEDs.
Replace lead‑acid batteries every 5 years. When operating in an environment where the ambient temperature is regularly over +25 °C (+77 °F), the battery may need to be replaced more often.