What is the warranty period?

We provide a 1-year warranty for our solar charge controllers.

What certifications do the products have?

Our products are certified with ISO and CE standards.

High-Efficiency 20A Solar Charge Controller for Optimal Energy Management

Name: High-Efficiency 20A Solar Charge Controller for Optimal Energy Management
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 1988023541

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$6.00-13.00

800 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

LED

Condition

New

Certification

ISO, CE

Application

Solar System Controller

Rated Voltage

12V/24V

Transport Package

Box

Specification

18.5*11.7*5cm

Trademark

Junengjiu

Origin

Zhongshan, China

Production Capacity

50000

Key features

High Efficiency MPPT: Maximizes solar panel output power by dynamically adjusting operating points for high efficiency.

Dual Voltage Support: Compatible with 12V and 24V systems for versatile solar energy management applications.

Multi-Battery Compatibility: Supports Lead-acid, Lithium (LiFePO4, Ternary), and Gel batteries for flexible usage.

Comprehensive Protection: Features overload protection, overcharging prevention, and over-discharging safeguards.

Customization Available: Offers ODM service with customization options from designs and samples.

Certified Quality: Products are certified with ISO and CE standards ensuring safety and reliability.

1 Year Warranty: Provides a 1-year warranty coverage for new condition products.

Night Discharge Management: Automatically manages battery discharge to loads at night to prevent over-discharge.

Company profile

Product CertificationQuality AssuranceExhibition ExperienceFast Delivery

Zhongshan Juneng Jiu Technology Co.,Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Zhongshan PortAverage Response Time: ≤2.19h

About Our Factory & Business Background

Address3rd Floor, 1st Elevator, Building E, No.66 Hesui Industrial Avenue, Dongfeng Town, Zhongshan, Guangdong, China

Plant Area1483 square meters

Number of Employees34

Registered Capital1,000,000 RMB

Terms of PaymentLC, T/T, Western Union, Small-amount payment, PayPal, D/P

International Commercial Terms(Incoterms)EXW, CFR, CIF, FOB

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity2000

Supply Chain Partners50

Our Production Capability & Technical Expertise

Main ProductsPower Inverter, Solar Charge Controller, Inverter, Solar Controller, Solar Inverter, Solar Power Inverter, Car Inverter, Car Power Inverter, Solar Panel Inverter, Charger Controller

Production Lines3

Production MachinesWave Soldering Machine, Ultrasonic Machine, Aging Line, Packing Machine, Marking Machine

QA/QC inspectors2 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instruction but no written records

R&D Engineers2 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2019-10-16

Main MarketsDomestic

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Product CertificationCE, RoHS

Cooperated with Fortune 500No

Product Q&A

Q:What is a solar controller?

A solar controller manages electrical energy transmission between solar panels and batteries, preventing overcharging or over-discharging to extend battery life and optimize system efficiency.

Q:What is the difference between PWM and MPPT controllers?

PWM controllers reduce panel voltage to battery voltage with lower efficiency, suitable for small systems. MPPT controllers maximize output power by dynamically adjusting the operating point, offering higher efficiency for high-power or low-temperature systems.

Q:What types of batteries are supported?

Most solar controllers support multiple battery types including Lead-acid (sealed/open), Lithium (LiFePO4, ternary), and Gel batteries.

Q:Does the controller have overload protection?

Yes, most solar controllers have overload protection. If load current exceeds the rated value, the controller automatically cuts off output to protect the system.

Q:How does the controller work at night?

At night, the controller stops charging and manages battery discharge to loads according to settings, preventing the battery from being over-discharged.