ALLTO SOLAR AS-10A-MPPT-D User manual

Please read all of the installation instructions carefully before installing the product. Improper installation will void
manufacturer’s warranty. The installation instructions are written as guidelines to assist in installing the system. Please contact
us with the email if you are not comfortable installing the product. Prior to using and installing the solar battery charger,
please read the safety information provided in this user manual. Be sure to use the product as outlined in this user manual.
Altercation or modifications carried out without appropriate authorization may invalidate the user's right to operate the
equipment.
10A 12V MPPT Solar Charge Controller
User Manual

1.0 Introduction
This manual provides safety and installation instructions for charge controller. Allto Solar assumes no responsibility for
loss, damage or expense resulting from improper installation, handling, or use.
2.0 Safety Precautions
Before installing this product, read all safety instructions in this document.
• All installations must be performed in compliance with any applicable local codes.
• The batteries must be same of type, make and age if you connect several batteries in parallel or series.
• Avoid exposing solar panel to partial sunlight or shadows, partial sunlight can cause hot spot on the solar panel.
• Ensure input voltage does not exceed 30 VDC to prevent permanent damage.
• The charge controller is powered by sunshine, mini voltage for the solar panel is 15V.
• Designed for 12V battery, do not use it for 6V or 24V battery. (two 6V batteries may also be used if connected in series;
multiple 12V batteries also may be used if connected in parallel).
• Do not attempt to recharge non-rechargeable battery, converse with your battery dealer for more info before usage.
• Ensure the polarity is correct when connecting the charge controller to battery and solar panel.
3.0 Feature
①Mode button: Push to cycle battery types
②Battery Voltage: Indicates battery voltage
③Battery Type: Illuminates solid Green when battery is selected
④Battery SOC: Indicates the connected battery(s) state-of-charge.
⑤Charge Current: Indicates solar charge current.
Input & Output: Male SAE plug is positive(+) and female SAE plug is negative (-)
4.0 How to Use
The charge controller has 3 modes: 12V, 12V AGM, 12V Lithium, It is important to understand the differences and
purpose of each charge mode. Always check with battery manufacturer to confirm the right charge mode for your specific
battery. Do not operate the charger until you confirm the appropriate charge mode for your battery. Below is a brief
description:
Mode
Explanation
12V
For charging 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and
Calcium batteries. When selected, the 12V LED will illuminate
12V AGM
For charging 12-volt AGM batteries. When selected, the 12V AGM LED will illuminate.
12V Lithium
For charging 12-volt lithium-ion batteries, including lithium iron phosphate. When
selected, the 12V Lithium LED will illuminate.
Caution*****Use 12V Lithium mode with extreme care, this mode should only be used with 12 volt lithium batteries that
have a built-in battery management system(BMS). Lithium-ion batteries are made and constructed in different ways and

some may or may not contain a battery management system(BMS). Consult the lithium battery manufacturer before
charging. Some lithium-ion battery may be unstable and unsuitable for charging.
4.1 Connecting to Solar Panel and Battery.
Do not connect the charge controller until all other connections are made. Identify the correct polarity of the solar panel and
battery terminals. The male SAE connector is positive and female SAE connector is negative, the positive battery terminal is typically
marked by these letters or symbol (POS,P,+). The negative battery terminal is typically marked by these letters or symbol (NEG,N,-).
Do not make any connections to the carburetor, fuel lines, or thin, sheet metal parts.
1) Expose the solar panel to full sun without shade.
2) Connect solar panel to charge controller, the LED screen will illuminate and display selected battery mode voltage.
2-1) If the LED screen and indicators don’t illuminate, the polarity of your solar panel probably doesn’t match charge controller.
(Please note: This MPPT charge controller has standard polarity, you need a polarity apdater/reverser if your solar panel polarity
doesn’t match the charge controller.)
3) Press mode button to toggle to the appropriate battery types, the mode LED will illuminate the selected charge mode.
4) Connect the charge controller to battery terminals, Wait 5-10s, the charge controller will enter charging mode once it recognizes
the battery. The SOC,battery voltage, charge current will illuminate indicating the charging process has started.
4.2 Understanding Charge LEDs.
5.0 Technical Parameters
Electrical Parameter
Battery Parameters
Rated Current
10A
Battery system Voltage
12V
PV Input Voltage
15V-30V
Starting Voltage
15V
Max PV Input
120W
Electronics Protections
Reversed battery polarity, Reverse PV polarity, PV over voltage, battery over-voltage, PV

over-current, Battery over-current.
Battery Type
Wet Cell, Gel Cell, Flooded, Maintenance-free, AGM, Lithium-ion, Lithium Iron
Controller Terminals
1.5mm2/16AWG
SOC
25%-50%-75%-100%
Standby Current
0mA( No discharge from battery)
Operation Temperature
-40 ℃-80℃
Temp Compensation
-3mV/℃/2V
Storage Humidity
10%-90%, No condensation
Dimension
87*54*26mm
Protection Level
IP54
Weight
0.35kg
Electrical Parameters
Battery Parameters
Battery types
Wet,Gel Cell/Flooded/
Maintenance-free
AGM
Lithium
Boost Charge Voltage
14.4V
14.6V
14.6V
Float Charge Voltage
13.8V
13.8V
/
Boost Charge Recovery
13.0V
13.0V
13.0V
Boost Duration
2 Hours
2 Hours
2 Hours
6.0 Status Troubleshooting
Description
Explanation
Troubleshooting
LED screen doesn’t
illuminate
sunshine is not
effective
The charge controller is powered by sunshine, if the sunlight is
weak, the charge controller would not light up. Simply expose
the solar panel to FULL SUN, see if the LED screen comes on
No solar Input
Check if solar panel deliver any output, the voltage of solar
panel in full should be 20V+.
Check if the polarity is correct, a polarity adapter is required if
the polarity of solar panel doesn’t match charge controller.
Input and output
wrongly
connected
Connect solar panel to charge controller thru INPUT instead of
output, led screen will not illuminate when wrongly connected.
LED screen illuminates, no
charge current and battery
percentage
No battery is
recognized
Check if the polarity is correct when connecting charge
controller to battery terminals
Check if the fuse is blown or not
Check if the battery connection is loose
LED screen turn on/off
frequently
sunshine is not
stable
check if the solar panel is receiving enough sunlight
7.0 Warranty
Thank you for purchasing the solar panel, should you experience any defect due to the manufacturer of this product, you
are entitled to get a replacement or refund. If You have any questions, feel free to sent us email
[e-mail] , we will get back to you within 24h.
www.alltosolar.com
ALLTO SOLAR TEAM