JS-B0 PWM Solar Charge Controller 10A–30A

Description

Core Advantages of JS-B0 PWM Solar Charge Controller 10A–30A

Optimized 10A–30A Current Options for Small and Medium Systems

The JS-B0 PWM solar charge controller is available in 10A, 20A, and 30A models, making it ideal for small residential and light commercial off-grid solar systems. This flexible current range allows distributors and system integrators to match different project requirements while maintaining standardized procurement.

Stable PWM Charging Technology for Reliable Battery Protection

Equipped with advanced PWM charging technology, the JS-B0 controller ensures stable battery charging performance. It provides comprehensive protection against overcharge, over-discharge, short circuit, overload, and reverse polarity, helping extend battery lifespan and reduce maintenance risks.

12V/24V Auto Recognition with Wide Battery Compatibility

The controller supports automatic 12V/24V voltage detection and is compatible with mainstream lead-acid battery types. This simplifies system installation and improves integration efficiency for solar installers and EPC contractors.

Integrated LCD Display and Dual USB Output

Featuring a clear LCD display for real-time system monitoring, the JS-B0 PWM solar charge controller enhances user visibility of charging status and system performance. Dual 5V/2A USB outputs provide convenient power supply for auxiliary devices in off-grid applications.

Cost-Effective OEM Solution for B2B Distribution

Designed for bulk supply and OEM cooperation, the JS-B0 10A–30A PWM solar charge controller offers competitive pricing and stable production capacity. It is well-suited for wholesalers, distributors, and solar project developers seeking reliable long-term supply partnerships.

Technical Specifications of 10A–60A PWM Solar Charge Controller

Model	DX2110	DX2120	DX2130	DX2140	DX2150	DX2160
System Voltage	12V/24V/Automatic adaptation				12/V24V/48V/Automatically adaptation
Rated Charge Current	10A	20A	30A	40A	50A	60A
Rated Discharge Current	10A	20A	30A	40A	50A	60A
Maximum Pv Input Voltage	12V systems >28V protection < 25V recovery, 24V systems >53V protection < 50V recovery,				12V system > 28V protection < 25V recovery, 24V system > 53V protection < 50V recovery, 48V system > 100V protection < 97V recover
Charging Method	Default PWM charging, b04/b05 can be set to on-off charging
Usb Output	3A
Standby Cumrent	<10mA
Battery Type	b01 sealed lead-acid batteries	b02 gel-type lead-acid batteries	b03 open lead-acid batteries	b03 open lead-acid batteries	b05 lithium iron phosphate batter
High Voltage Protection Hvd	16V
Boost Charging Voltage	14.4V	14.2V	14.6V	12.6V	14.6V
Equalize Charging Voltage	14.6V	/	14.8V	/
Boost Charge Retum Voltage	13.2V			/
Discharge Recovery Voltage	12.6V		10.5V	12.6V
Discharge Cutoff Voltage	11.1V		9.5V	11.1V
Enhanced Charging Time	2H			/
Equalize Charging Time	2H	/	2H	/

Technical Advantages of JS-B0 PWM Solar Charge Controller 10A–30A

Optimized PWM Charging Algorithm for Stable Energy Regulation

The JS-B0 PWM solar charge controller adopts an advanced Pulse Width Modulation charging algorithm to ensure smooth current regulation across different charging stages. This multi-stage charging process improves battery charging stability and enhances overall system performance in 12V/24V off-grid solar power systems.

Comprehensive Multi-Level Protection System

Integrated safety features include overcharge protection, over-discharge protection, short circuit protection, reverse polarity protection, and overload protection. These built-in mechanisms minimize operational risks and help extend battery lifespan, reducing maintenance frequency and system downtime.

12V/24V Auto Voltage Recognition with 50V PV Input Support

The controller supports automatic voltage detection for 12V and 24V battery systems and allows a maximum PV input voltage of 50V. With up to 3000W solar input capacity (model dependent), it ensures stable regulation for small and medium off-grid installations.

Wide Operating Temperature and Reliable Circuit Design

Engineered for durability, the JS-B0 operates within a wide temperature range of -35°C to +60°C. The optimized internal circuit structure ensures consistent charging control even under varying environmental conditions.

Practical Integration Features for Field Applications

Equipped with an LCD display for real-time monitoring and dual 5V/2A USB output ports, the controller enhances user convenience and system visibility. With an IP32 protection rating, it is suitable for standard indoor solar installation environments.

PWM vs MPPT Solar Charge Controller: Which Is Right for Your Project?

Working Principle Difference

A PWM Solar Charge Controller regulates battery charging by gradually reducing current as the battery approaches full capacity. It is simple, stable, and cost-effective for standard off-grid solar systems.

An MPPT Solar Charge Controller (Maximum Power Point Tracking) continuously tracks the optimal voltage and current from the solar panel to maximize power output, especially in larger or high-voltage PV systems.

Efficiency Comparison

MPPT controllers generally achieve 15–30% higher charging efficiency compared to PWM models, particularly in cold climates or when panel voltage significantly exceeds battery voltage.

However, for small and medium off-grid solar systems with matched panel and battery voltage, a 10A–60A PWM solar charge controller provides stable performance at a significantly lower cost.

Cost and Investment Consideration

PWM solar charge controllers are more affordable and easier to deploy, making them ideal for:

• Small residential off-grid systems

• Rural electrification projects

• Cost-sensitive commercial installations

• Bulk procurement by distributors

MPPT controllers are recommended for high-power systems where maximum energy harvesting justifies higher investment.

Application-Based Recommendation

Choose a PWM Solar Charge Controller if:

• The PV system is 12V/24V

• Panel voltage closely matches battery voltage

• Budget optimization is important

• Large-volume procurement is required

Choose an MPPT Solar Charge Controller if:

• The system capacity is large

• Panel voltage is much higher than battery voltage

• Maximum efficiency is a top priority

Why PWM Remains a Strong Choice for B2B Projects

For many distributors, solar integrators, and project contractors, PWM solar charge controllers offer the best balance between reliability, affordability, and supply stability. In standardized off-grid applications, PWM technology remains a practical and scalable solution.

Frequently Asked Questions – JS-B0 PWM Solar Charge Controller (10A–30A)

1. What battery types are compatible with the JS-B0 PWM solar charge controller?

The JS-B0 supports 12V and 24V battery systems and is compatible with lead-acid batteries, including AGM and gel types. For lithium battery applications, compatibility can be evaluated based on specific project requirements.

2. What is the difference between the JS-B0 PWM controller and an MPPT controller?

The JS-B0 PWM solar charge controller is a cost-effective solution for small and medium off-grid solar systems where panel voltage matches battery voltage. MPPT controllers are more suitable for high-voltage or large-capacity systems requiring maximum energy harvesting efficiency.

3. How do I choose between 10A, 20A, and 30A models?

The correct current rating depends on the total PV array current and system design. The 10A, 20A, and 30A options allow flexible selection for different off-grid system sizes. Our technical team can assist distributors and integrators in selecting the appropriate model.

4. What protection features are integrated into the JS-B0 controller?

The controller includes overcharge protection, over-discharge protection, short circuit protection, overload protection, and reverse polarity protection. These safety mechanisms help reduce operational risks and extend battery lifespan.

5. What is the maximum PV input specification?

The JS-B0 supports a maximum PV input voltage of 50V and a maximum solar input capacity of up to 3000W (model dependent). This makes it suitable for standard 12V/24V off-grid applications.

6. Is this controller suitable for bulk procurement and OEM supply?

Yes. The JS-B0 10A–30A PWM solar charge controller is designed for OEM cooperation and bulk distribution. Stable production capacity ensures reliable supply for wholesalers and solar project contractors.

7. What environments is the JS-B0 suitable for?

With an operating temperature range of -35°C to +60°C and an IP32 protection rating, the controller is suitable for indoor and protected solar installation environments.

8. What warranty and after-sales support are provided?

The JS-B0 PWM solar charge controller comes with a one-year warranty. Technical support and after-sales service are available to ensure smooth project implementation and long-term cooperation.