Top 17 Best 20 amp solar charge controllers in 2022

Finding the right 20 amp solar charge controllers hasn’t been simple with whatever these every other choices available. It’s hard to know what to buy, which is why we’ve put together this list of favorites consequently you can locate the perfect one based upon your needs and wants.

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Followings are the best-selling 20 amp solar charge controllers on Amazon:

If you’re looking for the perfect 20 amp solar charge controllers, check out our broad line-up of swing models.

Best 20 amp solar charge controllers

In this section, we have compiled some of the most popular 20 amp solar charge controllers around. Making your decision easier, we have listed some key features for each of these 20 amp solar charge controllers.

Renogy Voyager 20A 12V/24V PWM Waterproof Solar Charge Controller w/ LCD Display for AGM, Gel, Flooded and Lithium Battery, Used in RVs, Trailers, Boats, Yachts, Voyager 20A
  • 4-STAGE PWM Technology: The Voyager controller is equipped with advanced smart PWM technology with high charging efficiency. It provides 4-stage charging (Bulk, Absorption, Float and Equalization) in order to protect the battery.
  • IP67 Rated Waterproof: With an IP67 rated waterproof design, the Voyager controller is suitable for outdoor use and will remain fully operational when exposed to water spray, rain, or condensation.
  • Multiple Protections: The Voyager controller has multiple intelligent protections against reverse polarity, over charge, short-circuit, reverse current, overload, and over discharge, keeping your battery fully protected.
  • Support Multiple Battery Types: The Voyager controller can automatically sense 12V or 24V system voltage when paired with a Gel, AGM, or Flooded batteries. It also comes with a Lithium activation feature.
  • Backlit LCD displaying system: The Voyager comes with an LCD display showing accurate and timely information including charging current, generated energy, temperature, battery voltage, and error codes that allows users to monitor and control charging.
EEEKit 20A Solar Charge Controller, 12V/24V Solar Panel Battery Intelligent Regulator with Dual USB Port PWM Auto Parameter Timer Setting Adjustable LCD Display, Blue
  • 20A SOLAR CHARGE CONTROLLER: 20A Solar panel battery intelligent regulator are UL 1741 certified, the solar charger controller compatibility with 12V 24V system. Discharge current: 10A, build-in industrial microcontroller, automatically manage the working of solar panel and battery in solar system. Dual USB output 5V/2.5A (max), to support mobile phone charging.
  • SIX PROTECTION FUNCTIONS: 20A solar controller has Short-circuit protection, Overload protection, Over Current Protection, Overcharge protection, Under-voltage protection, Over-voltage protection. Fully 3-stage PWM charge management, improve system efficiency and prolong the life span of the battery.
  • BATTERY TYPE: The charge regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL, it is not suited for nickel hydride, lithium, Liions, or other batteries. In order to protect the lifespan of the battery, once the voltage of the battery drop below 8V, the solar controller will turn off automatically.
  • FUNCTIONAL LCD DISPLAY: Intuitive LCD display that can clearly indicate the status and data is able to switch modes and parameter configuration, suitable for home, industrial, commercial, etc.
  • EASY TO USE: The charge controller should connect the battery first, then the solar panel, finally the load. The disassembly sequence is contrary to the wiring order. Dual Mosfet Reverse current protection, low heat production. Note: The charge controller will heat up when it is running. Please be careful to install the charger controller in a flat, well-ventilated place.
GHB 20A 12V 24V Solar Charge Controller Auto Switch LCD Solar Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation
  • LCD Screen Display: This solar panel charger controller with LCD digital screen which is with energy-saving backlight to display all parameters, display better, more clea and more power-efficient
  • Fully Automatic: This solar panel regulator with output switch, easy to operate. The battery indicator light on the controller will be on if successfully connected
  • Power-efficient: Microcontroller digital accuracy, when solar panel regulator is charging, the arrow between the panel icon and the battery icon will flash fastly, when the battery was a full charge, it will be slow flashed, will stop charging. The function of the solar charge controller is to protect the voltage overshoot and discharge. Available for DC lamp and phone charging (Please correctly connect the positive and negative terminals, makes sure all terminals are connected tightly.)
  • Rated Discharge Current : 20A; USB Output Voltage: 5V; USB Output Current: 1.5A; DC Output Voltage: 12V-24V, DC Output Current: 20A. To connect your load and the cables with the right polarity and then connect with the load output port of the controller. Pay special attention to + - polarity to avoid reversed connection
  • Protection Functions: Overload and Short circuit protection, Lightning protection, Under-voltage protection, Over-charging protection, Reverse Polarity protection. Use PWM and WPC mode, improve system efficiency and prolong the life span of the battery
Renogy Wanderer Li 30A 12V PWM Negative Ground Solar Charge Controller Solar Panel Regulator w/ Temp Sensor Function Fit for Lithium, Sealed, Gel, and Flooded Batteries, Wanderer Li 30A
  • 【Optimized for 12V Batteries】Compatible with 12V battery banks on the market, including lithium batteries. The LED indicators allow you to set battery types and check the charging staus with ease.
  • 【Smart 4-Stage PWM Charging】Smart 4-Stage PWM charging (Bulk, Boost, Float, and Equalization) increases battery life and improves system performance. Intelligent protection against reverse polarity, overcharging, short-circuit, and reverse current.
  • 【Compact in size】Which makes it easy to install virtually anywhere.
  • 【Multiple battery adaptation】 Deep Cycle Sealed (AGM), Gel, Flooded and Lithium battery option ready.
  • 【Wanderer10A|30A Installation Notes】 The default starting position of the Wanderer controller terminal hatches are closed (in the UP position) that could mistakenly look like an open wire hatch. Make sure to FIRST lower each terminal hatch by screwing the terminals counterclockwise (CCW) to expose the wire terminal hatch to the open position. THEN secure each cable by rotating the screws clockwise (CW) to the closed position.
ALLPOWERS 20A Solar Charger Controller Solar Panel Battery Intelligent Regulator with USB Port Display 12V/24V
  • ►Rated Discharge Current: 20A; USB Output Voltage: 5V/3A; Battery Voltage: 12V/24V auto. Adjustable power rate with dual USB ports; 3-Stage(Bulk, ABS, Float) charge management and 4-Stage PWM charge. Please notice the controller might be power off if the battery voltage is too low.
  • ►Functionality: Equipped with industrial-grade STM 8 microprocessor to control the charger and discharge process and it has reliable battery to charge and discharge period management
  • ►Mutiple Electric Protection: Over-current and short-circuit protection, inverse connection protection, low voltage and overcharge protection
  • ►Good Heat Dissipation: Dual mosfet reverse current protection, low heat production(ALL electronic components generate heat when they are running,it is better to shelter them for better heat dissipation, avoid direct sunlight exposure or damp place)
  • ►Easy to Use: Comes with a display that can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration, suitable for home, industrial, commercial etc.
HUINE 20A 12V 24V Auto IP68 Waterproof PWM Solar Charge Controller Solar Panel Battery Intelligent Regulator for Solar System Caravan Boat(24 Hours Working Mode)
  • IP68 Rated Waterproof, this Intelligent 4-stage PWM solar charging controller is suitable for outdoor use,you can use it for solar fencing system, solar monitoring system, solar lighting system or other solar system.
  • It has short circuit protection, over charge protection, over discharge protection, reverse protection. Can extends battery life time.
  • Can automatically senses 12V or 24 Volt for your batteries, working mode of the solar charge regulator is 24 hours.
  • With short cables for connecting with solar panel, battery and load, and three LED lights can help you to know solar charging status, battery level, and load status.
  • Easy to mount directly on the frame of the solar panel, with heat sink design at bottom and 2pcs mounting holes. its small size also can saves you some space.
HQST 20Amp 12V/24V PWM Solar Charge Controller Regulator with LCD Display, USB-A Port, Compatible with Sealed, Flooded Lead-Acid Batteries
  • 20A Solar Charge Controller - It can automatically detect 12V or 24V PV systems. Works with Sealed, and Flooded lead-acid batteries. The optimized 3-stage battery charging system helps to regulate the flow of electricity, thereby prolonging your battery's lifespan.
  • Accurate LCD Display - The large digital LCD display clearly indicates the working condition and accurate operating data. It helps you monitor your PV system in real-time.
  • Safe to Use - Your valuable PV system needs a little charge controller to provide full protection throughout the day. It provides reverse polarity protection and block reverse current at night for your solar panel and battery. It also offers short circuit, overcharge, over discharge, and overload protection.
  • Easy to Install - This PWM solar charge controller is designed with corresponding icons on each connector, which will help you get quick installs. You should first connect the battery, then the solar panel, and finally your light bulb, or mobile device via the USB-A port.
  • Multiple Applications - Connect it with your solar panel system and battery to work on an RV, cabin, chicken coop, workshop, garage, or harbor freight to provide lighting. It can also be used to power your home's outdoor security camera system via its USB-A port.
HQST MPPT Solar Charge Controller 20 Amp Negative Grounded Controller with Bluetooth LCD Display, 12V/24V DC Input Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery
  • 【HIGH TRACKING EFFICIENCY】- HQST 12V 20 amp Solar charge controller adopts advanced MPPT technology that ensures fast and stable track of the maximum power point, high tracking efficiency of up to 99%, and peak conversion efficiency of 98%. Maximizing the energy from solar panels to charge your system. It auto-detects 12V or 24V DC system voltages. The max load output current is 20A. If it exceeds the 20 amp DC load (240 watts), the overvoltage protection will turn off the output.
  • 【PARALELL CHARGE FUNCTION】- 2 HQST MPPT controllers of the same series(M2420N/M2440N/M4860N) can work together to charge the same battery with the parallel charge cable (not included), to meet high power charging requirements and 2 controllers should set the same battery pack voltage. Our negative grounded controller offers overcharging/over-discharging/overload/overheat/short circuit/reverse protection. The maximum degree avoids the damage due to system fault or installation error.
  • 【LCD SCREEN DISPLAY & REMOTE MONITORING】- 40A solar controller is equipped with an LCD screen and LED fault indicators, which can check device operating data and modify controller parameters. Built-in Bluetooth module, you can download the ‘’ChargePro 2.0'' (new version) or the "PVChargePro'' (old version) app for remote monitoring that keeps 300 days of historical data. PS: the app of android version needs to turn on location and Bluetooth to connect.
  • 【HIGHER HEAT DISSIPATION EFFICIENCY & FULL-LOAD WORKING】- Die-cast aluminum heat sink makes the heat dissipation efficiency higher, which can minimize the power loss from heat. Filling inside the controller with gel is for better PCBA cooling conduction and prevents water and other damages, extending the controller service life. With the premium IC and better PCBA, this controller can work under full load even in high temperature environment.
  • 【COMPATIBLE WITH MULTIPLE BATTERY TYPES】- The mppt solar charge controller is compatible with Flooded, AGM, Gel, and Lithium batteries. User mode allows the buyer to set their charging parameters. 3-Stage Charging: boost, float, and equalization. HQST provides a 3-year warranty and lifetime technical support. Any questions, please feel free to contact us through amazon email.
20A Solar Charge Controller, Solar Panel Charge Controller Intelligent Regulator with Dual USB Port 12V/24V,PWM Auto Paremeter Adjustable LCD Display Blue
  • 【Solar Charge Controller】The solar charger controller compatibility with 12V 24V system. Discharge Current is 20A, build-in industrial micro controller, automatically manage the working of solar panel and battery in solar system. Dual USB , to support mobile phone chargeing.
  • 【Multiple Protection Functions】Solar controller has short-circuit protection, open-circuit protection, reverse protection, over-load protection.Improve system efficiency and prolong the life span of the battery.
  • 【LCD Display】Charge controllers for solar panels comes with a display that can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration, suitable for home, industrial, commercial etc.
  • 【Solar Charge Controller Control】Charge controller for protecting the lifespan of your battery, once the voltage of the battery out of range, the solar controller will turn off automatically.
  • 【Easy to Use】The charge controller should connect the battery first, then the solar panel, and finally the load.LCD display, adjustable parameter, solar panel charge controller suitable for home, industrial, commercial etc.
Renogy Rover 20A 12V/24V Auto DC Input MPPT Solar Charge Controller Parameter Adjustable LCD Display Solar Panel Regulator fit for Gel Sealed Flooded and Lithium Battery, Rover 20A
  • 【Innovative MPPT Design】Die-cast aluminium design ensuring excellent heat dissipation and Renogy Maximum Power Point Tracking technology with a high tracking efficiency of up to 99% and peak conversion efficiency of 98%. It is the best charging solution even in cloudy environments where the max power point of the solar panels will fluctuate all day.
  • 【12V/24V Automatically Detect】Automatically detects 12V or 24V DC system voltages (for Non-Lithium battery types), and the LCD screen and multiple LED indicators display the solar charging and battery operation information, customizable parameters, and error codes.
  • 【Full System Protection】Meant to safeguard your system, the self-diagnostic capability can assess and protect against reverse polarity, battery overcharging, battery over-discharging, overload, short-circuiting, and reverse current.
  • 【4-Stage Safely Charging】Features 4-stage charging (Bulk, Absorption, Float, and Equalization) of Lead Acid Batteries and 2-stage charging (Bulk and Absorption) for Lithiuim batteries as well as Lithium Reactivation
  • 【Diverse Load Control】 Connect DC appliances directly to the optional Load Terminals and monitor consumption or set up timer controls directly from the controller

You can now buy some of the best 20 amp solar charge controllerss upon Amazon. Below is a list of some of the best 20 amp solar charge controllerss that you can currently buy. We highly suggest looking at all of the features and specifications included behind each 20 amp solar charge controllers below before deciding which one to purchase. This will incite ensure you pick the product that will act out best for your needs and we guarantee they won’t disappoint!

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