Alpha Technologies Te45 - Manual (Page 45)

Alpha Technologies Ltd. 057-106-C0 Rev D
Burnaby, British Columbia. Telephone: 604 436 5900 Fax: 604 436 1233. Page 36 of 38
8 Batteries
The following generic maintenance instructions apply to valve regulated lead acid (VRLA) batteries. Each battery
type and manufacturer will have their own unique maintenance instructions, which must take priority over the
generic instructions listed here.
8.1.1 Monthly maintenance

Check and record each individual battery voltage.

Check and record the ambient temperature.
8.1.2 Semi-annual maintenance

Check the voltage of each cell.

Check the total voltage of all cells.

Check the temperature of each cell.

Visually inspect the general appearance and cleanliness of the batteries.

Check for cracks in cells or electrolyte leakage.

Check for corrosion.

Re-torque all intercell connector bolts.

Check the connections resistances cell-to-cell and cell-to-terminal.

Measure the conductance and impedance of each cell.
8.1.3 Performance/ integrity checks
The controller can perform real time monitoring of the performance of each battery. Parameters that can be
monitored include voltage, specific gravity, conductance, and impedance. See the controller manual.
8.1.4 String or cell replacement
1. Ensure that the system is not operating on backup power.
2. Unplug the battery string at the Anderson connector.
3. Remove the cables and fuses.
4. Remove the battery retaining brackets.
5. Replace batteries and reverse the procedure.
6. Check the battery polarities and the connectors before reinstalling the Anderson connector.