The 12 Best Solar heat controllers (2023 reviews)

If you often find yourself confused about good controller, solarepic solar heat controller should be your first option for buying. The solar system controller would regulate its input to the same batteries based on what is sees the voltage. The instructions say batt power first so that the controller recognizes the voltage. If your battery is nearly full, the controller will detect this and send less juice. This is a mppt controller which is a lot better by far since it extracts for energy from the solar panel than a pwm. The cables for cable connects are heavy duty and the case is cast aluminum rather than plastic. It also helps to only discharge to around 20% or 50% of its capacity except in emergencies.

The MPPT part is Maximum Power Point Tracking. This is a nice, well made unit that works great.

Why We Like This:

Easy to install and program using the mt50 monitor
Especially important for lithium iron phosphate batteries
You can use up 100 volt solar input to charge 12 volt batteries

Best For boat: Renogy Solar heat Controller

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If you often find yourself confused about appropriate and satisfactory controller, renogy solar heat controller is your end point. This all-in-one display provides you access to accurate energy system data anywhere, anytime via the dc home app. It can charge multiple batteries in parallel or series, 12 or 24 volts. It does look pretty well built. This controller allows for different wiring configurations of your panels 12, 24, 36, and 48 volt. As long as there is charge power from solar coming in, it can supply a load and keep it in "float" charge or such. It will "turn on" for battery charging when solar power (sunlight) is available.

It is used for lead acid batteries, no need for lifepo4 batteries.

Why We Like This:

Grid solar applications without wasted energy
Controller is easy to use, provides all needed data for system
Bluetooth app monitoring, cons battery cables aren’t included and additional cost
Bluetooth works good when close to the antenna

Best For Solar System: Rich Solar heat Controller

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The rich solar solar heat controller is capable of outshining several other controller featured in this list in overall features for the price point. The solar charge controller gets its power to charge your batteries from the solar panels. It makes sure the batteries don’t overheat by throttling back the power. The charger will identify the battery bank and it will select the charging voltage no matter which solar panel you have. It has a really nice heat sink in the bank. The Wire terminals are nice and large and easily accommodate an 8AWG cable.

This is a mppt controller which is more efficient in charging your battery than a cheaper pwm controller. The top light will blink at a couple different rates based on the charge of the battery and load going to it.

Why We Like This:

Lcd display is very nicely displayed
Comes with a battery temp sensor
Easy to wire and get operational
Great easy set up plenty of power

Best With various deep cycle Battery options: Bougerv Solar heat Controller

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Best part: bougerv solar heat controller costs comparatively low and it is available to ship in 24 hours. The bougerv Mppt solar charge controller is a multistage charger to support maintain deep cycle batteries. It comes with 6 protections, over-temperature, open-circuit, short-circuit, overload, polarity reverse prevention circuit, flow backwards of current protections. Pairing the solar controller with your phone via chargepro 2.0, which makes seeing output and history data a breeze, also allows the charge voltage, current, etc. The display is simple, perfect for a camper.

The unit has preset parameters for battery types and also has a user defined parameter settings. The user interface is very easy to read and it has just the right amount of information. The charge controller will supply energy to charge up the battery and will also supply an inverter or any other loads connected to the battery. This unit will also work with 12, 24, 36, and 48v batteries, so you can get more watt-hour capacity without huge power cables, and max out your pv input to 2400w with 48v battery.

Why We Like This:

Keeps batteries and system charging at the rate needed to match demand
Nice display and achieves full charge quickly
Very nice charge controller, easy to install, works great
Works great, easy to set up and no problems

Best With alternator: HQST High Quality Solar Technology Solar heat Controller

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Hqst High Quality Solar Technology is known for creating pragmatic and minimalist controller for people on the go, and its line of hqst high quality solar technology solar heat controller definitely falls in line with that reputation. The Mppt solar charge controller is compatible with flooded, agm, gel, and lithium batteries. It provides great metrics on voltages, current draws, and charge states. It also has a fairly basic historic data section and allows some settings / load port active status to be changed from the app.

Built in volt and amp meters are accurate and the selected battery profile is rigidly adhered to the selected battery profile. The controller has a DC output you can use to direct-connect light loads to the device. The load terminals are easy to turn on and off via ChargePro or the controller itself. This charge controller works very well and regulates power very efficiently.

Why We Like This:

Very flexibel on custom settings, bluetooth working great and overall impression of high quality
24 v batteries can be connected to 12 panels
The most important parameters are battery type, system voltage and boost(max) voltage

Best MPPT Solar Charger: Ampinvt Solar heat Controller

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The ampinvt solar heat controller should be able to handle its purpose and duties with ease. This controller has a 60 amp limit. It does bulk at user selected voltage, float (dwell) at user selected voltage, and shut off. It will clip the current at the 900 watts. The temperature adjusted Voc must not exceed the controller limit. It can remotely control mppt and view relevant data through the mobile phone of your android system. It allows more charging current than the solar panels can deliver. The battery has to have a bms. The adjust of the voltage is very easy and once set will keep the voltage even if disconnected.

Why We Like This:

Easy out of box installation, well worth buying a real charge controller
New and hot release

Best For nearby communication: EPEVER Solar heat Controller

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This Epever Mppt controller has a lithium battery low. The input voltage of the solar panel must be at least 2V greater than the battery to charge the battery. It is used to charge lifepo4 battery banks. The controller detects the battery temperature through the external temperature sensor and a minimum clearance of 150 mm from the upper and lower edges of the controller to ensure natural thermal convection. The screw on the bracket that secures the wires stripped, and needs to be more durable.

The controller shall be installed in a place with sufficient air flow through the radiators of the controller and a minimum clearance of 150 mm from the upper and lower edges of the controller to ensure natural thermal convection. The unit does have a BIG heat sink on the back. This charge controller can work for lead.

Why We Like This:

Performs great, and works with lithium batteries
Very flexible and sophisticated charge controller
Charge rate or 100 to 130 amps to keep up
Screws will hold 6 gauge wire

Best For permanent Installation: Litime Solar heat Controller

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Compared with other controller in this category, the litime solar heat controller has a convenient design. It is an MPPT controller which can be up to 40 more efficient than cheaper PWM batteries. It is made of die-cast aluminum, which ensures excellent heat dissipation to reduce the power loss. It has LED indicators and an lcd panel to provide fast information. It has a huge heat sink for efficient heat dissipation.

This charge controller can work for lithium or lead acid batteries. It has a variety of programmed modes to maximize the charging of LiPO4 batters, Gel batteries, and closed and open lead-acid batteries. It is not less than 99% and peak conversion efficiency is up to. It is very easy to use and very convenient. The Bluetooth capabilities make it easy to monitor, too.

Why We Like This:

Easy set up and readable instructions
Excellent heat dissipation and multiple protections
Good brand reputation

Best With Lithium phosphate iron: Powland Solar heat Controller

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate controller. The powland solar heat controller is exactly that - it's a simple controller that hits all the right notes. A mppt solar charge controller with advanced maximum power point tracking technology can continuously track the array’s maximum power point so as to get the maximum amount of power to charge the battery. It improves system efficiency by 2530% and three-stage charging optimizes and prolongs the life span of the battery. It has nice big terminals that easily accept 4awg welding wire. It comes with an LCD screen and 4 buttons, so it’s convenient for a dynamic display of system data and operating status.

This charger features a multifunctional lcd with communication ports for remote battery temperature and voltage measurement. It is not less than 99.5% and peak conversion efficiency is up to. It is easy to set up, very basic manual, but it works. The 80 amp controller, as well as the 100 amp controller will handle the voltage and will convert the voltage into higher current when charging.

Why We Like This:

General mode, light control mode，dual time mode, pure charger mode
Easy to use and works great
Good brand reputation

Best With Xantrex MPPT: Conext Solar heat Controller

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If you often find yourself confused about appropriate and satisfactory controller, conext solar heat controller is your end point. This is a great unit and super easy to program. It limits you to 150vdc only for panel connection input either series or parallel and 60A max limit. It is suitable for warm climates and also the xantrex mppt solar charge controller is a photovoltaic ( pv) charge controller that tracks the electrical maximum power point of a pv array to deliver the maximum available current for charging batteries. This controller will only charge up to a maximum of 1000 watts, leaving the battery bank always under charged.

With the box it comes in, the packing material makes it a bit big for a regular back pack or suit case. The unit itself is full of holes, so care must be taken to keep it dry.

Why We Like This:

Works great with a few caveats
Series-parallel works too for 60 cell panel
Delivers what they promise

Best For hour: OOYCYOO Solar heat Controller

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate controller. The ooycyoo solar heat controller is exactly that - it's a simple controller that hits all the right notes. This is a good, inexpensive charge controller that is best suited for small systems of 1 or 2 solar panels being used to charge deep cycle batteries. It will take up to 150VDC from panels. It is more a characteristic of your battery pack, rather than a characteristic of any particular charging circuit. The controller needs a bit of charge so you must hook it up to the battery first and then the solar panels.

This unit only charges to the specified maximum voltage set and varies depending on the battery and solar panel voltage i.e. The charger is very efficient and does a good job of regulating the charge and comparing the load requirements at any given moment. It is easy to set up and it automatically determines the battery voltage and adjusts accordingly requiring no manual configuration or setup to begin working. There is no need to set the battery type separately.

Why We Like This:

A regular lead sealed or non sealed deep cycle is perfect
Equipped with lightning protection device, it can work normally without grounding
Two usb ports are a nice extra feature

Best For differential Controller: Samfox Solar heat Controller

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate controller. The samfox solar heat controller is exactly that - it's a simple controller that hits all the right notes. The solar water heater controller has two output controls, and the temperature difference controls two temperature zones. It will control the heating system and automatically makes water temperature stay in temperature deference range. It has a solid structure, low noise and stable working performance. The unit will turn on and read the thermometers with only 110v input, but it will not fire the relays.

It does require a 220v input to power the unit. It has reliability and miniaturization, good maintainability and interchangeability. The power transistors will still switch 110v ac.

Why We Like This:

Has quite a number of parameters and depending on your application could be
Good brand reputation

The 12 Best Solar heat controllers (2023 reviews)

Our Top Picks:

Best Overall: Solarepic Solar heat Controller

Best For boat: Renogy Solar heat Controller

Best For Solar System: Rich Solar heat Controller

Best With various deep cycle Battery options: Bougerv Solar heat Controller

Best With alternator: HQST High Quality Solar Technology Solar heat Controller

Best MPPT Solar Charger: Ampinvt Solar heat Controller

Best For nearby communication: EPEVER Solar heat Controller

Best For permanent Installation: Litime Solar heat Controller

Best With Lithium phosphate iron: Powland Solar heat Controller

Best With Xantrex MPPT: Conext Solar heat Controller

Best For hour: OOYCYOO Solar heat Controller

Best For differential Controller: Samfox Solar heat Controller

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