Structure; Starter Battery Batt2 Instruction - Offgridtec MPPT Pro Duo Bedienungsanleitung

1.3 Structure

The controller is charging the BATT1 as default (25℃) without temperature compensation when it's not connected to
the remote temperature sensor, or the temperature sensor is damaged. The temperature compensation is ONLY
designed for the lead-acid battery.
⑵The above two shared power ports are 5VDC/Max. 200mA, also the AES signal port is designed for AES
supported car refrigerator, which the internal power switching device is required
.

1.4 Starter battery BATT2 Instruction

1)Working principle of the starter battery
The controller is trickling charge the BATT2 at 1A constant current. When the voltage reaches the "Full charging voltage"
during the BATT2 charging process, the controller will stop charging and quit the constant voltage charging mode.
2) Voltage control parameters of the starter battery
Item
Full voltage
Charge return voltage
CAUTION: Please follow the logic of Full Voltage > Return Voltage when modifying the voltage point.
3) Start Charging Conditions
CAUTION: BATT2 ONLY supports lead-acid battery type, before start the BATT2 charging, please connect the
BATT1 first.
Condition1: BATT2 starts charging when BATT1 reaches the float charging stage and the BATT2 voltage is lower than the
"Charging Return Voltage.
Condition 2:BATT2 starts charging when the batteries total charging current is higher than 3A and the BATT2 voltage is
lower than the "Charging Return Voltage.
Allgemeine Informationen
Offgridtec GmbH
Landshuter Str. 141 – 143
84307 Eggenfelden
WEEE-Reg.-Nr. DE37551136
Offgridtec MPPT Pro Duo
❶
❷
Grounding Terminal
Remote temperature sensor
❸
port
❹
PV terminals
BATT1 terminals
Default
13.8V/12V; 27.6V/24V
13V/12V; 26V/24V
Kontaktinformation
Tel: 08721-7786187
Email: info@offgridtec.com
Web: www.offgridtec.com
GFR: Christian & Martin Krannich
❺ BATT2 terminals
❻ RS485 Communication port
⑴
❼ AES signal output port
Konto Sparkasse Rottal-Inn
Konto: 10188985
BLZ: 74351430
IBAN: DE69743514300010188985
BIC: BYLADEM1EGF (Eggenfelden)
Seite 5 von 19
⑵
Modify range
9～17V(24V×2)
9～17V(24V×2)
Sitz und Amtsgericht
HRB: 9179 Registergericht Landshut
Steuernummer: 141/134/30045
Ust-IdNr: DE287111500
Gerichtsstand: Mühldorf am Inn