12 Month Maintenance Schedule - Flooded Lead-Acid Batteries

For the first 12 months of usage, the following tests should be completed: 

MONTHLY

•    Measure and record resting/loaded voltage

•    Check electrolyte levels and top up with distilled water as necessary

•    Test and record specific gravity measurements in Float charge

•    Record ambient temperature where the batteries are installed

•    Inspect to ensure temperature sensor is securely attached

•    Inspect cell integrity for corrosion at terminal, connection, racks or cabinets

•    Check battery monitoring equipment to verify operation

QUARTERLY

•    Test Ventilation

•    Check terminals/connections, remove corrosion and properly re-torque

•    Check for high resistive connections

•    Check cabling for broken or frayed cables

•    Verify Charge Output, Bulk/Absorption voltage of Inverter/Charge Controller

•    Check cells for cracks or indication of a possible leak

•    Check Ground connections

Deep cycle batteries will increase in capacity during the initial break-in period of 60-90 cycles. Adjustments to charging parameters may be necessary during this time. Battery performance, charging and maintenance requirements will depend on usage. Following the break-in period, a regular maintenance routine will be established after 9-12 months of service.

Following these recommendations will ensure the batteries reach their rated capacity and operate in good working order.