4.2 Replacement of Components
In general, all of the components parts used in the construction of the panel have been selected for long life and
reliability.
However, certain components may require to be changed on a regular service basis. The details of these are as
follows:
4.2.1 Batteries
For battery installation, see section 2.3.2
Respect the Environment.
Batteries must be disposed of responsibly and in accordance with any local
regulations.
Expected Life: - 3-5 years at an ambient temperature of 20°C
Replacement Schedule: - As above. However, note that the expected battery life is shortened by
increase in ambient temperature. The life reduces by 50% for every
10°C rise above ambient. Refer to battery manufacturer for further
information.
Manufacturer / Part Numbers: - YUASA POWERSONIC
4AH NP4-12 5AH PS-1250-F1
7AH NP7-12 7AH PS-1270
For optimum performance and charge retention, Yuasa recommend that
batteries are ‘top-charged’ prior to installation.
For batteries up to 6 months old from date of manufacture, charge at 2.4V per
cell (i.e. 14.4V per battery) for 20 hours prior to installing the batteries.
It is not recommended to use batteries that are more than 6 months old, from
their date of manufacture, on a new installation.
It is quite normal for lead-acid batteries to vent hydrogen when
being charged.
The panel is adequately ventilated to dissipate this hydrogen.
DO NOT seal the enclosure or install in a sealed enclosure or
cavity.
4.2.2 Liquid Crystal Display
Expected Life: - > 10 years
Replacement Schedule: - When the display becomes difficult to read. The display contrast will
gradually fade with time.
- Replace the complete circuit card assembly.
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