What are the main functions of a solar controller?

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

What are the minimum order quantity and lead time?

The Minimum Order Quantity (MOQ) is 2000 units. Lead time is within 15 workdays off-season and one month during peak season.

What payment terms are accepted?

Accepted payment terms include LC, T/T, Western Union, Small-amount payment, PayPal, and D/P.

Durable Solar Charge Controller by Junengjiu for Renewable Energy

Name: Durable Solar Charge Controller by Junengjiu for Renewable Energy
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 2265625425

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$4.00-12.00

800 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Condition

New

Model NO.

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-power systems.

Multi-Battery Support: Compatible with Lead-acid, Lithium (LiFePO4, Ternary), and Gel batteries for versatile applications.

Comprehensive Protection: Features overload protection, overcharge prevention, and over-discharge protection to extend battery life.

Dual Voltage Options: Supports 12V and 24V rated voltages to suit different solar system configurations.

System Monitoring: Displays and monitors key data such as voltage, current, and battery capacity for better management.

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

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

1 Year Warranty: Provides 1-year after-sales service warranty for peace of mind and support.

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: ≤1.63h

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 (or solar charge controller) manages electrical energy transmission between solar panels and batteries. It prevents overcharging/over-discharging, extends battery life, and optimizes system efficiency.

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

PWM controllers directly reduce 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 are supported?

Most controllers support multiple battery types including Lead-acid (sealed/open), Lithium (LiFePO4, ternary), and Gel batteries. Confirm compatibility with your specific battery type.

Q:Does the controller have overload protection?

Yes, most solar controllers include 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 over-discharging.