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20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation

20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation

Q: Ok asking my question again. .... How many working amps? Didn't know children answered these too. Lol

LOL, Dana is not up to date on facts. I have a 8 gauge wire connecting both the panels and the batteries. 20A charge and usage through the "load" terminals. Also if you series 2 panels instead of parallel your amps drop by half and voltage increases to 24v, series 2 batteries and get a step down transformer on the load and you get more working amps at the transformer while using smaller gauged wire on the panels and batteries.

Q: Can I hook up a 750 watt inverter to the Load terminals of the controller?

No you cannot. As previously stated, I’d hook the inverter straight to battery although you can hook a relay in series between the battery and inverter and use the controller load to power the coil of the relay. This will allow the controller to shut down the inverter in case of any problems. Use a relay rated for at least 70Amps for a 750 watt inverter.

Q: Can this controllers output voltage be set to 24 vdc? i need to series two twelve volt batteries and supply a system with 24 vdc.

The information on specs are unclear but it does work. I have two 12 volts in series on my boat in flat storage with no electrical around. I bought one 24V solar panel, connected to this controller and it works great. The serttings are automatic if you follow directions. Here is my summary for my fishing club: There’s math involved to determine solar panel size so hang in there. Each battery is 12 Volts rated at 90 amp hours (AH). Multiply volts times amps to get total watts. 12V X 90ah = 1080 watts each, times 2 batteries = 2160. That’s total watts from zero to full charge. Since you can’t run batteries to zero and expect them to work, only half of the power is usable. Therefore, my needs are half of the 2160 total = 1080 watts. I decided I wanted to get fully charged batteries after 2 days. There is good sunlight on my location an average of 6+ hours per day so I need a panel large enough to reach 1080 watts in 12 hours charging time. Watts divided by hours, 1080/12 gets me my panel size of 90. Solar panels and connections are subject to voltage loss due to dust, connections, shadows, etc. Figure 20%. I need 120 watts output in a 24-volt panel (match my battery voltage). I found the components below. A 24 volt, 150-watt panel, a controller (don’t want to overcharge) and special solar wiring and connectors all on Amazon.

Q: Can you set this to charge the battery once it gets to a certain level?

It will charge the battery and taper off when the battery is fully charged. It won't charge a dead battery or work well if the battery is in a low charge state.

Product ID: 557950803

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Details

Colour
Black
Brand
GHB
Voltage
12 Volts
Display Type
LCD with
UPC
611864444666

⚡Comprehensive multi-layer protection

💡Built-in energy-saving backlight LCD

🔋20A rated discharge current

Frequently Bought Together

GHB 20A 12V 24V Solar Charge Controller Auto Switch LCD Solar Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation

Southco R4-EM-11-161 Electronic Rotary Push-to-Close Latch, Auto Relock, with Latch Status Microswitch, Non-Sealed Connector, 1/4-20 Thread, Steel Housing, Zinc Plate, Bright Chromate

Description

⚡ Power up smarter, live greener, and never miss a charge!

ROBUST 20 A OUTPUT - Power your devices confidently with a high-capacity 12V/24V controller and 3A USB output.
SMART AUTO SWITCHING - Seamlessly manage battery connections with intuitive polarity detection and automatic load control.
ADVANCED SAFETY SUITE - Stay worry-free with overload, short circuit, lightning, and reverse polarity protections.
OPTIMIZED BATTERY HEALTH - PWM & WPC charging modes extend battery lifespan while maximizing solar efficiency.
CRYSTAL CLEAR LCD DISPLAY - Instantly monitor all charging parameters with a sleek, power-efficient backlit screen.

The GHB 20A Solar Charge Controller is a compact, intelligent regulator designed for 12V/24V solar systems. Featuring a vivid energy-saving LCD, automatic polarity detection, and a 20A rated discharge current, it ensures efficient, safe charging with multiple protections including overload, short circuit, and lightning. Ideal for powering DC lamps and USB devices, it optimizes battery life with advanced PWM & WPC modes.

Specifications

Manufacturer	Smile&Satisfaction
Charging Port Type	USB, DC
Country of Origin	USA
Item model number	CMG-2420
Product Dimensions	13 x 10.01 x 3 cm; 281 g
ASIN	B01LZZMDSQ

Have a Question? See What Others Asked

Ok asking my question again. .... How many working amps? Didn't know children answered these too. Lol

Can I hook up a 750 watt inverter to the Load terminals of the controller?

Can this controllers output voltage be set to 24 vdc? i need to series two twelve volt batteries and supply a system with 24 vdc.

Can you set this to charge the battery once it gets to a certain level?

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