Battery selection for a battery energisers with solar panels
As a guide, the minimum amp hour (Ah) rating of the 12 V lead-acid battery required for
each model as well as the size of the solar panel is shown below. This table is based on ave-
rage usage over seven days with no sunlight at full power and fast pulse.
Energiser Model
P250
P350
Battery management
Battery charging
Warning: The battery-operated energiser is not suitable to be connected to a mains/line sup-
ply. Ensure that the battery is disconnected from the energiser before connecting the battery to
any mains-operated (line-operated) battery charging device. Failure to observe this precaution
could result in damage to the energiser or the battery. An energiser operated with a battery
only has unique requirements. Regular recharging of the battery is essential. Use a suitably
rated battery charger to recharge the battery. Refer to the battery manufacturer's recommenda-
tions.
1. Disconnect the battery from the energiser
2. Attach the positive (+) battery charger lead to the positive terminal of the battery, and the
negative (-) battery charger lead to the negative terminal on the battery.
3. Insert the battery charger's input power plug into a mains or line socket and turn on the
power supply.
4. After the battery is charged, disconnect it from the battery charger before connecting it to
the energiser.
Over-charging the battery will reduce its life. Do not exceed the recommenda-
tions of the battery manufacturer on recharging the battery from a mains-pow-
ered (line-powered) source.
A correctly installed solar energiser system requires very little battery maintenance. The solar
panel selected should be sufficient to maintain the battery at full or near-full charge during the
vegetation period.
Warning:
Batteries contain harmful chemicals and when used incorrectly, may cause injury.
Observe the guidelines for battery care, maintenance and safety in this manual and in the
documentation supplied with your battery.
Battery capacity
Minimum size
45 Ah
80 Ah
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Solar panel
Minimum size
15 Watt
25 Watt