44V 4.5A High Voltage Battery Charger with RoHS

Basic Specifications

Model NO.

FY4404500

Application

Laptop, Electric Car, Motorcycle

Nominal Voltage

48V / 44V

Charger Style

Simple Charger

Certification

UL, TUV, GS, CE, FCC, PSE, KC, RoHS

Socket Type

USA/Canada/EU/UK

Efficiency

>88%

Warranty

3 Years

Weight

0.78kgs

Dimensions

178*90*35mm

Product Overview

This high-voltage battery charger is widely used for battery packs including Lithium, LiFePO4, Lead-acid, and Ni-MH. It is suitable for E-bikes, Electric Golf Carts, Power Tools, Medical Instruments, and Security Products.

Key Advantages

Global Safety Certificates (UL, TUV, GS, CE, CB, FCC, PSE, SAA, KC).

ISO9001 certified production process since 2007.

Full 3-year warranty for peace of mind.

100% inspection: HIPOT, OCP, OVP, and short circuit testing.

Self-manufactured key components like transformers and DC cords.

OEM and ODM services available.

Technical Parameters

Item	Parameter Details
Model No.	FY4404500
AC Input	100-240V, 50/60HZ
Max Charging Voltage	44V
Max Charging Current	4.5A
Inrush Current	Limited 15A (Cold Start)
Protections	Short Circuit, Over Current, Over Voltage
Power Factor	0.89
MTBF	30,000 hours at 25ºC
Energy Efficiency	Level VI (DOE or COC)

Product Gallery

Application & Production

Battery Compatibility Range

Li-ion Battery Charger Range:

Cells	1S	3S	7S	10S	13S	14S
Voltage	4.2V	12.6V	29.4V	42V	54.6V	58.8V
Max Current	10A	10A	8.5A	5.5A	4A	3.6A

Frequently Asked Questions

What is MTBF and how does it differ from Life Cycle?

MTBF (Mean Time Between Failures) is a statistical prediction of reliability based on component count. Life Cycle is an estimate of the power supply's actual lifespan based on the temperature rise of electrolytic capacitors during operation.

Why is the input voltage range on the spec sheet wider than the label?

The label (100V-240VAC) follows strict safety regulation standards. However, the internal design allows for a wider range (88-264VAC) to ensure stable operation during minor voltage fluctuations.

How should I choose a power supply for battery charging?

We recommend choosing a unit where the Over Load Protection (OLP) mode is "constant current limiting." This ensures a steady current flow even when the protection circuit is triggered.

What is the recommended power rating for my system?

To increase reliability, we suggest choosing a charger with a rating approximately 30% higher than your actual need. For a 100W requirement, a 130W source is ideal.

What safety protections are included?

The charger includes comprehensive protection features: Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection.

What is the warranty period for this product?

This high-voltage battery charger comes with a standard 3-year warranty covering manufacturing defects and performance stability.