5
Energiser Model
Selector Switch Position
Current Required
Recommended Battery Capacity
(50% Discharge)
B6 Full Power
Half Power
0.85 A
0.35 A
270 Ah
120 Ah
B12 Full Power
Half Power
1.7 A
0.75 A
600 Ah
250 Ah
B18 Full Power
Half Power
2.1 A
1.1 A
700 Ah
370 Ah
Battery selection for a battery maintained installation
Warning! A rechargeable 12 V lead-acid battery must be used for a battery maintained installation.
The battery selected for a battery maintained installation must be able to supply the energiser’s current
requirements for the duration of a mains/power outage. For maximum reliability, the battery should not be
discharged below a 50% charge level. The table below is based on a 12 hour power outage.
The battery charger power pack should be able to supply the energiser’s current requirements and recharge the
battery in an acceptable time. The recharge times shown in the table are for the Stafix 2 A (FSTPP2A) and 4 A
(FSTPP4A) battery charger power packs.
Energiser
Model
Selector Switch
Position
Current
Required
Minimum Battery
Capacity
Recharging Time
(after 12 hours)
Battery Charger
Power Pack
B6 Full Power
Half Power
0.85 A
0.35 A
20 Ah
9 Ah
11 hours
4 hours
2 A
B12 Full Power
Half Power
1.7 A
0.75 A
41 Ah
18 Ah
12 hours
4 hours
4 A
B18 Full Power
Half Power
2.1 A
1.1 A
51 Ah
27 Ah
17 hours
6 hours
4 A
Battery management
Battery charging
A battery-only installation 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
recommendations.
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 Plug the battery charger into the mains/line
power supply socket and turn the power on.
4 After the battery is charged, disconnect it from
the battery charger before connecting it to the
energiser.
Caution! Over-charging the battery will reduce its
life. Do not exceed the recommendations of the
battery manufacturer when recharging the battery.
Correctly installed solar energiser systems and battery
maintained installations require very little battery
maintenance. The solar panel or battery charger
power pack should be sufficient to maintain the
battery at full or near-full charge.
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.
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