What are the main functions of a solar controller?

Main functions include charging management (preventing overcharging), discharge protection (preventing over-discharging), load control (managing power to loads), and system monitoring (displaying voltage, current, and capacity data).

What certifications does the product have?

The product holds ISO and CE certifications, ensuring compliance with international quality and safety standards.

Compact Solar Charge Controller by Junengjiu - Ideal for Small Spaces

Name: Compact Solar Charge Controller by Junengjiu - Ideal for Small Spaces
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 1978672601

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$10.00-11.00

800 Pieces

Product profile

Customization

Available

Condition

New

Certification

ISO, CE

Model NO.

SY48100

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

Dual Voltage Support: Compatible with 12V and 24V solar systems for versatile application.

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

Multi-Battery Compatibility: Supports Lead-acid, Lithium, and Gel batteries for flexible system design.

Comprehensive Protection: Features overload protection, overcharge prevention, and over-discharge safeguards.

System Monitoring: Displays and monitors real-time data including voltage, current, and capacity.

Nighttime Discharge Control: Manages battery discharge to loads at night while preventing over-discharge.

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

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

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: ≤2.43h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a trade company located in Zhongshan, with associated companies in manufacturing. It reports CE and RoHS certifications, customization from designs and samples, ODM services, and new product development during the past year. Production resources include three production lines and several listed machines, but the supplier does not continuously reconcile production quantities for each batch. Service procedures exist for supplier assessment, corrective actions, and complaint handling, yet no written records were provided. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, or branches, and no overseas service countries were reported. Financial records are referenced for 2022–2024, but no financial performance details are provided. No available SDK, no factory environmental impact assessment report, and no OEM service for popular brands were reported.

CertificationsThe supplier reports CE and RoHS certifications. These are explicit product or compliance certifications and provide positive evidence for this field.

After-Sales capabilityThe supplier has procedures for complaint handling, corrective and preventive actions, and service-capability assessment, but no written records are available. It has no overseas warehouse, showroom, agents, or branches, and reports service availability in zero overseas countries, limiting demonstrated after-sales coverage.

R&D capabilityThe supplier reports new products during the past year and provides ODM services, demonstrating some product-development capability. However, it explicitly reports no available SDK, so the evidence does not support a fully strong innovation capability across the requested scope.

Production capacityThe supplier lists multiple production-related facilities or equipment and reports three production lines. However, it does not continuously reconcile quantities for each batch or bulk production, which is an explicit production-control deficiency.

Customization capabilityThe supplier explicitly supports customization from designs and samples and provides ODM services. These capabilities directly demonstrate design-based and sample-based customization.

Product Q&A

Q:What is a solar controller?

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

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

PWM controllers directly reduce panel voltage to battery voltage with lower efficiency, suitable for small-scale 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 can be used with this controller?

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

Q:Does the solar controller have overload protection?

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

Q:How does the solar controller work at night?

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