High Quality 24V 4A Li-Ion Battery Charger | 29.4V 4A Lithium Ion Charger | UL cUL FCC CE PSE SAA UKCA Certificates

Henryuan high quality AC charger 24V 4A lithium ion battery chargers, designed to meet global standards and provides excellent performance for 7S 24V li-ion battery packs. They have been approved by KC, KCC, UL, cUL, FCC, EMC, PSE, SAA, CE, UKCA, and other global safety standards, making sure reliability and safety for various uses, low-noise charging and anti-interference.
Applications

• High-Draw Electric Skateboards (Esk8): Highly compatible as a robust 7S lithium Esk8 electric skateboard charger 4A accessory, utilizing an automatic trickle current maintenance phase to perfectly protect Lipo chemistry life.
• Premium Acoustics & Handheld Audio Amplifiers: Operates as an interference-free clean DC 29.4V 4A adapter for audio amplifiers, ensuring an absolute black background noise floor that rules out high-frequency speaker buzzing.
• Precision Medical Diagnostics & Sensors: Works flawlessly as an ultra-clean 29.4V 4A charger for portable medical equipment, providing heavy internal filtering with good EMI/EMC shielding to safeguard diagnostic readings.

Key Features:

Global Certificates:

• CB, KC, KCC, UL, ETL, cUL, FCC, PSE, CE EMC, LVD, UKCA, SAA, CCC certified for comprehensive safety and quality assurance.

Input Features:

• Input Voltage: 90Vac-264Vac
• Rated Input Voltage: 100Vac-240Vac
• Input Frequency: 50/60Hz
• Input Current: 3A
• Inrush Current: 60A

Output Features:

• 3 stage 24V 4A li-ion battery charger
• Output voltage: 29.4V
  
• Output current: 4A, Power: 120W
  
• LED Indicator: Dual-color (Red for charging, Green for full charge)

Charging Stages:

• Constant Current: Fast charging 4A , LED red.
• Constant Voltage: 29.4V max, ensure charging safety and avoid overcharging
• Trickle Charging: Current from 0.4A to 0,  LED green when fully charge the battery pack.

Charging Curve:

• Efficient and safe charging 29.4V 4A output for 24V li-ion batteries

Protection Features:

• Advanced over-current, over-voltage, short-circuit, and reverse polarity protections to ensure safe charging.

Quality Assurance:

• A team of experienced sales engineers with over a decade of expertise.
• Rigorous supplier selection and material inspection processes.
• Advanced production and testing equipment.
• 100% aging test process, with up to 4 hours of full-load aging.
• Comprehensive after-sales support with a 48-hour resolution system.

About Henryuan Group:

With over 13 years of experience in lithium battery charger production and R&D, Henryuan is a leading charger supplier. Our 24V 4A li-ion battery charger is renowned for its superior performance and safety, making it a top choice globally. Exported to regions including the Americas, Europe, the UK, Australia, New Zealand, and beyond, our chargers are designed for various applications such as electric bikes, scooters, outboard motors, and more.

Explore our range of 24V li-ion battery charger models, including 0.5A to 15A options, to find the ideal charger for your needs.
Contact Henryuan’s sales engineers for the reliable, efficient, and safe 24V 4A li-ion battery chargers

Hashtags:

• Good EMI 29.4V 4A lithium battery charger
• Low noise 29.4V 4A li-ion battery charger
• 7S 24V lithium charger with EMC shielding
• UL cUL listed 29.4V 4A charger
• TUV GS CE certified 24V 4A lithium charger
• UKCA PSE SAA approved 29.4V 4A smart charger
• 29.4V 4A charger for portable medical equipment
• Clean DC 29.4V 4A adapter for audio amplifiers
• 7S lithium Esk8 electric skateboard charger 4A
• OEM 7S 24V lithium battery charger manufacturer
• Custom 29.4V 4A charger factory

Technical Q&A of Henryuan 29.4V 4A Lithium Charger:

Q: Why is 29.4V the standard voltage for 7S Lithium-ion packs?

A: A 7S lithium battery consists of seven 3.7V max cells in series. The exact saturation point is 7 * 4.2V = 29.4V. This precise calibration ensures a 100% State of Charge (SoC) while protecting the cell chemistry from over-voltage stress.

Q: What are the benefits of "Good EMI" performance in charging?
A: High-quality EMI/EMC shielding minimizes electrical noise. This is critical for medical devices, electric skateboards, robots, audio equipments, and sensors, where interference from a standard charger could compromise signal integrity or measurement accuracy.

Q: How does the Henryuan fanless design improve reliability?

A: At a 4A output, our fanless thermal architecture uses an aluminum heat-sink to dissipate heat. Being fully-sealed plastic enclosure, it prevents dust and moisture intake, leading to a much higher MTBF (Mean Time Between Failures) compared to fan-cooled units.

Q: Is this 29.4V 4A charger certified for global markets?

A: Yes. To support international market, this series carries UL, cUL, FCC, CE, GS, UKCA, FCC, PSE, CCC and SAA certifications. It includes integrated Over Current protection(OCP), Short Circuit (SCP) and Over Voltage (OVP) protection for worldwide compliance.

Q: How does the 3-stage algorithm extend battery life?

A: The 29.4V 4A charger uses a professional CC-CV-Trickle logic. By precisely tapering the current as the pack constant voltage charging stage, it allows the BMS (Battery Management System) to balance cells properly, extending the battery’s total cycle life by up to 20%.

Common Li-ion 29.4V AC Charger Models for Projects