Polaroid LS1024EU User guide

Manual | Page 1 of 2

Charge and empower your devices, e.g.
mobile phones, tablets & lights, directly
via solar energy from your solar panels.

Laden und nutzen Sie Ihre Geräte, wie z.B.
Handys, Tablets & Lampen direkt über die
Solarenergie aus Ihren Solar Panels.

Zubehör für Polaroid Solar Panels SP50 & SP100.
Accessory for Polaroid Solar Panels SP50 & SP100.

Schematische Zeichnung
Schematic drawing

Product parameters

Nominal system voltage 12/24V auto

Rated charge current 10A

Rated discharge current 10A

Battery input voltage range 8~32V

Max. PV open circuit voltage 50V

Equalize charging voltage

Gel: –
Sealed: 14.6V
Flooded: 14.8V

Boost charging voltage

Gel: 14.2V
Sealed: 14.4V
Flooded: 14.6V

Float charging voltage

Gel: 13.8V
Sealed: 13.8V
Flooded: 13.8V

Low voltage reconnect
voltage

Gel: 12.6V
Sealed: 12.6V
Flooded: 12.6V

Low voltage disconnect
voltage

Gel: 11.1V
Sealed: 11.1V
Flooded: 11.1V

USB output port 5VDC/1.2A

Charge circuit voltage drop ≤0.13V

Discharge circuit voltage drop ≤0.17V

Self-consumption ≤5mA(12V); ≤7mA (24V)

Temp. compensation -5mV/C/2V

Enclosure IP20

Grounding Common Positive

Overall dimension 120.3 x 67 x 21.8mm

Mounting dimension 111.5mm

Mounting hole size ø4.5mm

Terminals 12AWG / 4mm2

Net weight 100 gr

Working temperature -35C – +55C

Humidity ≤95% N.C.

Produktparameter

Nennsystemspannung 12/24V auto

Nennladestrom 10A

Nennentladungsstrom 10A

Batterie-Eingangsspannungs-
bereich

8~32V

Max. PV Leerlaufspannung50V

Ladespannung ausgleichen

Gel: –
Gasdicht: 14.6V
Flüssigkeitsbefüllt: 14.8V

Ladespannung erhöhen

Gel: 14.2V
Gasdicht: 14.4V
Flüssigkeitsbefüllt: 14.6V

Erhaltungsladespannung

Gel: 13.8V
Gasdicht: 13.8V
Flüssigkeitsbefüllt: 13.8V

Niederspannungswieder-
verbindungsspannung

Gel: 12.6V
Gasdicht: 12.6V
Flüssigkeitsbefüllt: 12.6V

Niederspannungstrenn-
spannung

Gel: 11.1V
Gasdicht: 11.1V
Flüssigkeitsbefüllt: 11.1V

USB-Ausgang 5VDC/1.2A

Spannungsabfall der Lade-
schaltung

≤0.13V

Spannungsabfall der Entlade-
schaltung

≤0.17V

Eigenverbrauch ≤5mA(12V); ≤7mA (24V)

Temp. Vergütung -5mV/C/2V

Schutzklasse IP20

Erdung Gemeinsam positiv

Abmessungen 120.3 x 67 x 21.8mm

Montagemaß 111.5mm

Montagelochgröße ø4.5mm

Terminals 12AWG / 4mm2

Nettogewicht 100 gr

Arbeitstemperaturen -35C – +55C

Feuchtigkeit ≤95% N.C.

47 110

Solar Charge Controller | LS1024EU

1. Safety Information

• Read all of the instructions in the manual before installation.

• DO NOT disassemble or attempt to repair the controller.

• Install external fuse or breaker as required.

• Do disconnect the solar module and fuse/ breakers near to battery before installing
or moving the controller.

• Power connections must remain tight to avoid excessive heating from a loose connection.

• Only charge batteries that comply with the parameters of controller.

• Battery connection may be wired to one battery or a bank of batteries.

• Risk of electric shock, the PV and load can produce high voltages when the controller
is working.

2. Overview

The Polaroid Solar Charge Controller is a PWM charge controller that adopts the most
advanced digital technique. It’s an easy operation and cost ef cient controller featured as:

• 3-Stage intelligent PWM charging: Bulk, Boost/Equalize, Float

• Support 3 charging options: Sealed, Gel, and Flooded

• Battery status LED indicator can indicates battery situation

• Battery temperature compensation function

• With humanized settings, operation will be more comfortable and convenient

• The USB will provide power supply that can charge for electronic equipment

• Battery type and load output can be set via button

• Extensive Electronic protection

3. Product Features















 PV Terminals  Load Switch Button

 Battery Terminals  Battery status LED indicator

 Load Terminals  Load status LED indicator

 USB output interface  Charging status LED indicator

 Mounting Hole ø4.5mm

4. Wiring

Connect the system in the order of  battery  load PV array and disconnect the
system in the reverse order (see  gure 2).

NOTE: While wiring the controller do not close the circuit breaker or fuse and
make sure that the leads of „+“ and „-“ poles are connected correctly.

NOTE: A fuse which current is 1.25 to 2 times the rated current of the controller
must be installed on the battery side with a distance from the battery not greater
than 150 mm.

NOTE: If an inverter is to be connected to the system, connect the inverter directly
to the battery, not to the load side of the controller.



USB Output

Mini Anderson Input

Figure 2

Krokodil Klemmen inklusive
Alligator clips included



DC5V 1.2A



5. LED Indicators

• Charging and load status indicator

Indicator Color Status Introduction

Charging status

LED indicator

Load status LED

indicator

• Battery status indicator

LED1 LED2 LED3 LED4 Battery Status

Slowly  ashing × × × Under voltage

Fast  ashing × × × Over discharge

o o × × 12.8V < U

o o o × 13.4V < U

o o o o 14.1V < U

o o o × 12.8V < U

o o × × 12.4V < U

o × × × U

NOTE:

1) Voltage value for 12V system at 25ºC, please use 2x in 24V system

2) “o“LED indicator on | „דLED indicator off.

6. Setting operation

1) Load ON/OFF Setting
When the controller is powered on, press the button to control the load output.

2) Battery Type Setting

Operation:

Step 1: Enter setting mode by pressing button for 5s until the battery status LEDs are
 ashing.
Step 2: Select the desired mode by pressing button.
Step 3: The mode will be saved automatically without any operation for 5 seconds and
LED will stop  ashing.

Battery type indicator

LED1 LED2 LED3 Battery type

o × × Sealed (Default)

o o × Gel

o o o Flooded

Note: “o“LED indicator on | „דLED indicator off

Smart technology for a better world

Energy Systems

Green ON Charging

Green OFF Not charging

Green Fast  ashing Battery over voltage

Green ON Load ON

Green OFF Load OFF

Green Slowly  ashing Load overload

Green Fast  ashing Load short circuit

LED1 LED2 LED3 LED4

Battery LED indicator status during voltage is up

Battery LED indicator status during voltage is down

Button

bat < 13.4V

bat < 14.1V

bat < 13.4V

bat < 12.8V

bat < 12.4V

bat

Manual | Page 2 of 2

Solar Charge Controller | LS1024EU

6. Setting operation

Battery Voltage Control Parameters

Below parameters are for 12V systems at 25ºC. Please double the values for 24V systems.

Sealed Gel Flooded

Over Voltage Disconnect Voltage 16.0V 16.0V 16.0V

Charging Limit Voltage 15.0V 15.0V 15.0V

Over Voltage Reconnect Voltage 15.0V 15.0V 15.0V

Equalize Charging Voltage 14.6V —— 14.8V

Boost Charging Voltage 14.4V 14.2V 14.6V

Float Charging Voltage 13.8V 13.8V 13.8V

Boost Reconnect Charging Voltage 13.2V 13.2V 13.2V

Low Voltage Reconnect Voltage 12.6V 12.6V 12.6V

Under Voltage Warning

Reconnect Voltage

Under Voltage Warning Voltage 12.0V 12.0V 12.0V

Low Voltage Disconnect Voltage 11.1V 11.1V 11.1V

Discharging Limit Voltage 10.6V 10.6V 10.6V

Equalize Duration 120 min. —— 120 min.

Boost Duration 120 min. 120 min. 120 min.

7. Protection

Battery Over Voltage Protection

When the battery voltage reaches to the set point of Over Voltage Disconnect Voltage
(OVD), the controller will stop charging the battery to protect the battery from being
over charged to break down.

Battery Over Discharge Protection

When the battery voltage reaches to the set point of Low Voltage Disconnect Voltage
(LVD), the controller will stop discharging the battery to protect the battery from being
over discharged.

Load Overload Protection

Load will be switched off when 1.25 times rated current overload happens. User has to
reduce load appliance, then press the button or repower the controller.

Load Short Circuit Protection

Load will be switched off when load short circuit (≥3 times rated current) happens. User
has to clear short circuit, then press the button or repower the controller.

High Voltage Transients Protection
The controller is protected against small high voltage transients. In lightning prone areas,
additional external suppression is recommended.

8. Troubleshooting

Faults Possible reasons Troubleshooting

LED Charging indicator
turn off during daytime

when sunshine falls on PV

modules properly

No LED indicator

Charging status LED indica-

tor Fast ashing

LED1 Fast ashing

Load status LED

indicator slowly ashing

Load status LED

indicator fast ashing

*When load current reaches 1.25 times, 1.5 times and 2 times more than nominal value,
the controller will automatically turn off loads in 60s, 5s and 1s respectively.

PV array

disconnection

Battery voltage

maybe less than 8V

Battery Over Voltage

Battery over

discharged

Load over load*

Load short circuit

12.2V 12.2V 12.2V

Conrm that PV and battery
wire connections are correct

and tight

Measure battery voltage with

the multi-meter. Min. 8V can

start upthe controller

Check if battery voltage is

higher than OVD, and

disconnect the PV

When the battery voltage is
restored to or above LVR point
(low voltage reconnect voltage),

the load will recover

1) Please reduce the number
o f e l e c t r i c e q u i p m e n t s

2) Press the button or repower
the controller

1) Check carefully loads

connection, clear the fault

2) Press the button or repower
the controller

9. Technical Parameters

Nominal system voltage 12/24V auto

Rated charge current 10A

Rated discharge current 10A

Battery input voltage range 8~32V

Max. PV open circuit voltage 50V

Equalize charging voltage Gel: –

Boost charging voltage Gel: 14.2V

Float charging voltage Gel: 13.8V

Low voltage reconnect voltage

Low voltage disconnect voltage

USB output port

Charge circuit voltage drop

Discharge circuit voltage drop ≤0.17V

Self-consumption ≤5mA(12V); ≤7mA (24V)

Temp. compensation -5mV/oC/2V

Enclosure IP20

Grounding Common Positive

Overall dimension 120.3 x 67 x 21.8mm

Mounting dimension 111.5mm

Mounting hole size ø4.5mm

Terminals 12AWG / 4mm2

Net weight 100 gr

Working temperature -35oC – +55oC

Humidity ≤95% N.C.

10. Disclaimer

This warranty does not apply under the following conditions:

• Damage from improper use or use in an unsuitable environment.

• PV or load current, voltage or power exceeding the rated value of controller.

• User disassembly or attempted repair the controller without permission.

• The controller is damaged due to natural elements such as lighting.

• The controller is damaged during transportation and shipment.

• Any changes to this manual can be done without prior notice!

11. Warranty and customer service

Germany / EU

GBT GmbH

An Gut Nazareth 18A Telephone: [phone] / 20 85 60
52353 Dueren E-Mail: [e-mail]

Finland

Pro Technic

Sierakiventie 8 Telephone: [phone]
02780 Espoo E-Mail: myynti@protechnic.

Australia

Portable Power Supplies

430 Newman Rd.
Geebung QLD 4034 E-Mail: [e-mail]

For further manuals in different languages please visit our website:

www.polaroidenergystorage.com or www.gbt-international.com/manuals

Energy Systems

Sealed: 14.6V
Flooded: 14.8V

Sealed: 14.4V
Flooded: 14.6V

Sealed: 13.8V
Flooded: 13.8V

Gel: 12.6V
Sealed: 12.6V
Flooded: 12.6V

Gel: 11.1V
Sealed: 11.1V
Flooded: 11.1V

5VDC/1.2A

≤0.13V

Smart technology for a better world