How does the solar controller work at night?

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

Junengjiu Solar Power Controller: Advanced Solar Charge Management System

Name: Junengjiu Solar Power Controller: Advanced Solar Charge Management System
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 2257589295

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$4.50-5.50

800 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

Model NO.

Condition

New

Certification

ISO, CE

Application

Solar System Controller

Rated Voltage

12V/24V

Carton Size

48.5*34*27cm

Innerbox Size

16*9*5cm(Per PC)

Brand

Junengjiu

Origin1

Zhongshan/China

Transport Package

Box

Specification

16*9*5cm(per pc)

Trademark

Junengjiu

Origin

Zhongshan, China

HS Code

8504403090

Production Capacity

50000

Key features

10A Current Capacity: Supports 10A current with USB interface for versatile power management.

Dual Voltage Support: Compatible with 12V and 24V systems for flexible solar applications.

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

Battery Life Extension: Prevents overcharging and over-discharging to optimize battery longevity.

CE & ISO Certified: Meets international safety and quality standards with CE and ISO certification.

Compact Packaging: Inner box size 16*9*5cm, carton size 48.5*34*27cm for efficient shipping.

Night Discharge Control: Manages battery discharge to loads at night to prevent over-discharge.

Multi-Battery Compatibility: Supports lead-acid, lithium, and gel batteries for diverse system needs.

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: ≤2.29h

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 between solar panels and batteries. It prevents overcharging or over-discharging, extends battery life, and optimizes system efficiency.

Q: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 devices), and system monitoring (displaying voltage, current, and capacity).

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 are compatible with this controller?

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

Q:Does the 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.