How does a 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.

What is the warranty period for this product?

We provide a 1-year warranty for this high-efficiency solar charge controller.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 2000 units.

High Efficiency Solar Charge Controller for Optimal Power Management

Name: High Efficiency Solar Charge Controller for Optimal Power Management
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 2204776175

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

Over Charge Current(V)

13.7V/*2 24V

Over Discharge Current(V)

10.5-11V/*2 24V

Temperature Compensation

-3mv/℃/Cell

Empty Load Wastage

<45mA

Transport Package

Box

Specification

18.5*11.7*5cm

Trademark

Junengjiu

Origin

Zhongshan, China

Production Capacity

50000

Key features

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

Wide Load Current Options: Available in 10A, 20A, 30A, 40A, 50A, and 60A rated load currents to suit various system sizes.

Dual Voltage Auto Recognition: Supports 12V and 24V auto-rated voltage systems for flexible installation.

Comprehensive Battery Protection: Prevents overcharging, over-discharging, and overload to extend battery life and ensure safety.

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

Low Power Consumption: Empty load wastage is less than 45mA, ensuring minimal energy loss during standby.

CE and ISO Certified: Product meets international quality and safety standards with CE and ISO certifications.

Customization Available: ODM service and customization from designs or samples are available for bulk orders.

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

Q:What is the role of a solar controller?

It performs charging management to prevent overcharging, discharge protection to prevent over-discharging, load control for connected devices, and system monitoring for voltage, current, and capacity data.

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 systems. MPPT controllers dynamically adjust operating points to maximize output power, offering higher efficiency for high-power or low-temperature systems.

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

Most solar controllers support multiple battery types, including sealed and open lead-acid batteries, lithium batteries (LiFePO4, ternary lithium), and gel batteries.

Q:Does a solar controller have overload protection?

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