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Best Energy Controllers - Buying Guide

Last Updated: 07/16/2019

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  #1

Battery Tender 021-1163 5W Solar Maintainer with Built-in Super Smart Charging Controller

Model: 021-1163   |    Mpn: 0211163   |    Ean: 0801940095428   |    PartNumber: 0211163   |   Asin: B004Q83TGO

Harness the power of the sun with this Battery Tender 5-Watt Solar Panel with built-in smart charging controller. It's 100% portable and ideal for battery charging and maintenance, and for storage space without power access. Battery Tender solar panels are the only panels available with a built-in charge controller to prevent overcharging.

Features

  • 5W solar panel with built-in Battery Tender 3-step microcontroller for super-smart charging that ensures that your battery is not damaged by overcharging
  • Output: 12 VDC, 270 mAmp DC, 5W max for battery charging and maintenance
  • Worry free: Reverse polarity protection, waterproof, sparkproof, built in temperature compensation sensor, and CE approved
  • Great for: Outdoor use, trickle charging, off road motorcycle, all-terrain vehicles
  • Approximate dimensions: 14W X 16L X 1H; Weight: 3 pounds
  • Built-in 3-step microcontroller for precise charging
  • Waterproof and sparkproof for outdoor installations
  • Easy, do-it-yourself installation
  • Built-in temperature compensation sensor
  • 12V nominal voltage 270 mAmps
  • See more on Amazon...

Brand: Battery Tender   |   Manufacturer: Battery Tender

Item Dimensions: 3 x 17.8 x 17.8 inches (7.6 x 45.2 x 45.2 cm)   |   Package Dimensions: 2.6 x 17.3 x 17.5 inches (6.6 x 43.9 x 44.5 cm)

Amazon Price: $61.23 | as of 07/16/2019(8:53am pst)
Availibility: Usually ships in 24 hours
List Price: $64.93

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  #2

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

Asin: B078W6K3NC

What Makes GHB Solar Charge Controller Different!

Adopts the advanced digital techniques and operates fully automatically.

With output switch, intelligent control, easy to operate.

LCD screen display makes all much more clear.

Power-efficient, Microcontroller digital accuracy.

Double USB Port, available for DC lamp and phone charging.

Use PWM&WPC mode, improve system efficiency and prolong the life span of the battery.

It has various unique functions and quite easy to use.

Speicifications:

Overload/Short Circuit Protection: 1.5 Times by Rated Current

Voltage of Battery: 12V / 24V Automatic

Rated Charge/Discharge Current: 20A

USB Output Voltage: 5V

Total USB Output Current: 3A

DC Output Voltage: 12V

Total DC Output Current: 2A

Short Circuit Recovery Time: 10s

Open Circuit Voltage of Solar Panel: 40V

No Load Loss: 0.05W

Over Voltage Protection: 15V; x2/24V

Float Charge Voltage: 14V; x2/24V

Discharge Recovery Voltage: 12V; x2/24V

Over Discharge Voltage: 10.5V; x2/24V

Control Mode: Software Intelligent Control

Working Temperature: -35~55 C

Item Size: 135 * 100 * 25mm / 5.31 * 3.94 * 0.98in (L * W * H)

Protection:

1. Over-load protection

2. Short circuit protection

3. Lightning protection

4. Under-voltage protection

5. Over-charging protection

6. Reverse Polarity protection

Package List:

1 * Solar Charge Controller

2 * DC Cable

1 * English User Manual

Notice:

Please connect to the battery first and then the panel.

Any question during use, please kindly contact our store to get the best after-service.

Features

  • LCD Screen Display >> With LCD to display all parameters, the LCD has rich contents, the users can intuitively know the working condition of the controller. The LCD display is with built-in energy-saving backlight LCD, display better, more clear, more beautiful, more modern and more power-efficient.
  • Fully Automatic >> With output switch, intelligent control, easy to operate,to connect the controller and the battery by cables with right polarity. The battery indicator light on the controller will be on if successfully connected, otherwise, to check and reconnect.
  • Power-efficient >> Microcontroller digital accuracy, when it's charging,the arrow between the panel icon and the battery icon will be flashes fastly,when the battery was full charge,it will be slow flashed,will stop charging,the function of the controller is to protect the voltage overshoot and discharge. Available for DC lamp and phone charging. A key to open and close the load.
  • Rated Discharge Current >> 20A; USB Output Voltage: 5V; Total USB Output Current: 3A; DC Output Voltage: 12V. To connect your load and the cables with right polarity and then connect with the load output port of the controller. Pay special attention to + - polarity to avoid reversed connection, otherwise, your load may be damaged.
  • Protection Functions >> Overload and Short circuit protection, Lightning protection, Under-voltage protection, Over-charging protection, Reverse Polarity protection. Use PWM&WPC mode, improve system efficiency and prolong the life span of the battery.
  • See more on Amazon...

Brand: GHB   |   Manufacturer: Smile&Satisfaction

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  #3

Betop-camp 20A Solar Charger Controller Solar Panel Battery Auto Charge Regulator with Dual USB 12V/24V

 Ean: 0713721173037   |   Asin: B07R6GPCBM

This series solar charge controller is a kind of intelligent, multi-functional solar charge and discharge controller. All the controlling parameters can be reset flexibly to satisfy your different needs.

Change the default setting of solar controller, requires:

1. Disconnect the solar panel
2. ensure the remain voltage of battery no less than 12V
Features:
--Automatically manage the working of solar panel and battery in solar system.
--Overloading and short-circuit protection.
--Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection.
--Protection from lightning strike.
--Prolong the battery life cycle and keep the load work well.
--Easy to set up and operate.
--Suitable for small solar energy system.

Features

  • Application: Solar System Controller, Rated Voltage: 12V 24V Auto
  • Adjustable charging & discharging parameter,Settable working modes of loads,Accumulative function for charging,Overloading & short-circuit protection
  • Easy to use: Visual graphic symbol on LCD Monitor, working status is clear at a glance. Brief operation panel is good for home, industrial, commercial etc
  • Automatic identification of system voltage. Intelligent PWM charge mode.Adjustable charge/discharge control parameters, settable operating modes of loads
  • Good Heat Dissipation: Dual mosfet reverse current protection, low heat production
  • See more on Amazon...

Brand: Betop-camp   |   Manufacturer: Betop-camp

Package Dimensions: 1.9 x 3.7 x 3.9 inches (4.8 x 9.4 x 9.9 cm)

Amazon Price: $9.99 | as of 07/16/2019(8:53am pst)
Availibility:
List Price: $9.99

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  #4

EEEKit 20A Solar Charger Controller Solar Panel Battery Intelligent Regulator with USB Port Display 12V/24V

 PartNumber: H930712-E001347911   |   Asin: B07QZXMWLM

Product Description
Package Includes: 1 x EEEKit 20A Solar Charge Controller
Warranty and Service
24 Months;any questions you have, please don't hesitate to contact us; We will get you back within 24 hours

Product Specifications:
Suitable for farm solar power system, solar street light, solar patio light, solar billboards, outdoor camping solar system, ship solar system
Batt voltage: DC 12V/24V Auto
Charge /Discharge current: 20A
Over discharge Protection: 10.7V/21.4V
Charge recover voltage: 12.6V/25.2V
Overcharge Floating charge: 13.7V/27.4V
Over discharge Protection: 10.7V/21.4V
Equalization: B01: sealed 14.4V / B02: Gel 14.2V / B03: flood 14.6V
Easy to operate and installation :
Wiring STEPS: Screw the adjustment screw counter-clockwise until the plates move down; Insert the wire into the new opening between the plate and the "top" of the Terminal hole, not under it; Screw the adjuster clockwise and the plate will move upwards thereby squishing the wire in the Terminal hole Installation STEPS
Connect the system in the order of 1.Battery > 2. Load > 3.PV Array in accordance with Figure, and disconnect the system in the reverse order 3. 2 .1. Note:
Please keep it in cool and well ventilated place to maintain good heat dissipation
the regulator is only suitable for lead acid batteries:OPEN, AGM, GEL, not for nickel hydride, lithium, ions, or other batteries
Make sure your battery has enough voltage for the controller to recognize the battery before first installation
The working temperature of this controller is -35 C to 60 C, during hot sunny days, the temperature outside might go up to 60-75 C. Please do keep the controller stay in cool and well-ventilated place to maintain good heat dissipation

Features

  • Rated Discharge Current 30A; 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 chargeintelligent optimized SOC control,has overcharge protection, overdischarge protection, anti-backflow protection, overheating protection, effectively ensure the system stability
  • Automatic Data Storage and Dual USB output Automatically memorize various parameters set by the user, unexpected power failure can be stored, the data will not be lost after the battery is used up; This solar charge controller can simultaneously charge or supply power to two mobile phones, tablet PCs and other devices that require 5V power
  • Intelligent Safety Electric Protection Intelligent control, automatic disconnection, data loss, special chip and dedicated software, intelligent control system based on expert control, intelligent optimized SOC control,has overcharge protection, overdischarge protection, anti-backflow protection, overheating protection, effectively ensure the system stability
  • LCD Display and Material Made of high-strength plastic;The controller uses intuitive digital display settings, timing settings and digital display, intuitive display corresponding to one-button operation to complete
  • 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
  • See more on Amazon...

Brand: EEEKit   |   Manufacturer: EEEKit

Item Dimensions: 2.5 x 13.5 x 7 inches (6.4 x 34.3 x 17.8 cm)   |   Package Dimensions: 0.3 x 1.6 x 3.1 inches (0.8 x 4.1 x 7.9 cm)

Amazon Price: $9.97 | as of 07/16/2019(8:53am pst)
Availibility: Usually ships in 24 hours
List Price: $9.97

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  #5

FANCY NOVA 30A Solar Charge Controller, Solar Panel Controller 12V/24V PWM Auto Paremeter Adjustable LCD Display Solar Panel Battery Regulator with Dual USB Port

 Ean: 0698253998191   |   Asin: B07RNM3TY2

Features:
1. Automatically manage the working of solar panel and battery in solar system.
2. Easy to set up and operate.
3.Solar Charge Controller Suitable for solar power system, solar street lamp, smart home, solar light box, intelligent irrigation,camping lantern.etc.
4. Protection from lightning strike and high speed charging.
5. Prolong the battery life cycle and keep the load work well.
6. Overloading and short-circuit protection.
7. Suitable for small solar energy system.

Specifications:
- Batt voltage: 12V/24V auto
- Charge current: 30A
- Discharge current: 30A
- Max Solar input: Please keep it in cool and well ventilated place to maintain good heat dissipation.
Make sure your battery has enough voltage for the controller to recognize the battery before first installation.

Features

  • Easy to Use Solar charge controller comes with a big LCD display that can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration.
  • Widely Used Solar panel suitable for solar power system, solar street lamp, smart home, solar light box, intelligent irrigation,camping lantern etc.
  • Precautions The solar regulator is only suitable for lead acid batteries:OPEN, AGM, GEL, not for nickel hydride, lithium, Liions, or other batteries.
  • Mutiple Electric Protection short-circuit protection,open-circuit protection,reverse protection,over-load protection, more safty for using, suitable for home, industrial, commercial etc.
  • Satisfaction Guarantee Fancy Nova Solar charge Controller provide 100% satisfaction guarantee: 30 days hassle free money back, an 12-month warranty.You can get it immediately!
  • See more on Amazon...

Brand: FANCY NOVA   |   Manufacturer: FANCY NOVA

Package Dimensions: 1.5 x 3.11 x 5.39 inches (3.8 x 7.9 x 13.7 cm)

Amazon Price: $10.49 | as of 07/16/2019(8:53am pst)
Availibility: Usually ships in 24 hours
List Price: $10.49

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