Dometic PerfectCharge SMP 439A, Installation And Operating Manual

Page: 17 / 284

EN
SMP439A Using the device
17
5: U phase (float)
After the U0 phase, the battery charger switches to conservation charging function
(see chapter “Output data” on page 20) (U phase).
Connected DC loads are powered by the device. Only if the power required
exceeds the capacity of the device is this surplus power provided by the battery.
6: 12-day conditioning
Every 12 days and only if battery voltage is below 12.8 V, the battery charger
switches back to phase 1 in order to revive the battery and prevent any fatigue
symptoms such as sulphation. If battery voltage is over 12.8 V, the battery charger
switches back to phases 2 to 4 for 85 minutes and switches then to phase 5.
7.2 Selecting the battery type
In order to select the battery type, no accessories or additional appliances shall be
connected.
I
➤
Press the battery type selector button with step function softly (fig.
1
7,
page 3).
✓
Each press steps through the battery types and signals with numbers of blinks on
the LED. If the device is powered up without a battery connected, the number of
short green blinks between long red blinks shows the selected battery type:
NOTE
For selecting the battery type, the following requirements are necessary:
•
A battery is not connected to the device.
•
The device is supplied with mains voltage.
Lead start battery
AGM battery
(default)
Power supply
Bulk charge 14.4 14.7 13.8
Float voltage 13.8 13.6 13.8
LED blinking 1x green
1x red
2x green
1x red
3x green
1x red
SMP439A-IO-16s.book Seite 17 Freitag, 23. November 2018 11:09 11