How does a solar controller work at night?

At night, the controller stops charging and manages battery discharge to the load according to settings, preventing over-discharge.

Premium Solar Charge Controller by Junengjiu for Smart Energy Solutions

Name: Premium Solar Charge Controller by Junengjiu for Smart Energy Solutions
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 2134070062

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$4.00-12.00

800 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

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

Comprehensive Warranty: 1-year warranty and after-sales service coverage for all units.

Dual Certification: Certified by ISO and CE standards for quality and safety assurance.

Customization Available: ODM service supports customization from both designs and samples.

High Inspection Rate: 100% visual and functional inspection performed on finished products.

Flexible Payment Terms: Accepts LC, T/T, Western Union, PayPal, D/P, and small-amount payments.

Fast Off-Season Delivery: Lead time within 15 workdays during off-peak seasons.

Multi-Battery Support: Compatible with Lead-acid, Lithium, and Gel battery types.

Overload Protection: Automatically cuts off output when load current exceeds rated value.

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: ≤1.41h

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 role of a solar controller?

It performs charging management, discharge protection, load control, and system monitoring to ensure safe and efficient operation of the solar energy system.

Q:What is the difference between a PWM controller and an MPPT controller?

PWM reduces voltage directly with lower efficiency, suitable for small systems. MPPT dynamically adjusts the operating point for higher efficiency, ideal for high-power or low-temperature environments.

Q:What types of batteries can a solar controller be used with?

Most controllers support Lead-acid (sealed/open), Lithium (LFP, ternary), and Gel batteries. Users must confirm compatibility with their specific battery type.

Q:Does a solar controller have overload protection?

Yes, most solar controllers feature overload protection that automatically cuts off output if the load current exceeds the rated value to protect the system.