dc dc battery charger | DC-DC Converter

FY4202000D model is 42V 2A DC-DC battery charger for 10 cells lithium battery, widely used in current popular electric mobility solutions, such as E-bike, E-scooter, hover board. As more and more people carry these mobile tools to the outdoors, the demand for outdoor charging equipment is also rising sharply. FY4202000D model is mainly used to charge lithium batteries with a car or solar panel when you are outdoors.

This DC-DC lithium battery charger can convert the 12V/24V DC output from a car or solar panel into the voltage required to charge the battery. It not only has the function of fast charging, but also can detect the battery status in real time and adjust the charging mode intelligently: Constant Current - Constant Voltage - Trickle Charging.

42V 2A DC-DC battery charger has perfect protection function: Over Current, Over Voltage, Short circuit protection and anti-reverse protection. Furthermore, the LED indicator shows the charging state, RED means charging, and GREEN means full charged.

Product functions

1. Automatic 3 stage charging mode: CC - CV - Floating/ Cut off.

2. Red and green bi-color LED light show charging status.

3. Complete protection function: shortcircuit protection / overvoltage protection / overcurrent protection.

Do you accept customization?

Case customization

DC connector customization

Parameter customization

42V 2A DC-DC battery charger is very popular in Europe, North America, Korea and Japan, it is already passed UL (UL1012) CE & GS (IEC 60335) KC (K60950) PSE (J60335) RoHS Reach certification test. Which means that this charger can be sold directly in these regions without waiting for a lengthy certification process.

It is well known that charging the battery need to be very careful. We use a fan-less closed plastic housing design, so the charger's safety performance is very good. And the fuse is installed in the primary and secondary of the charger to ensure the safety of the user in the accident.

As a professional switching power supply manufacturer (ISO 9001:2015 , ISO140001:2015 and QC:080000:2012 TUV certified factory) with 30 years of experience, we can certainly provide you with excellent customized services, OEM/ODM is available.

At present, we have provided excellent DC-DC charging solutions for many well-known electric skateboards and electric bicycle companies around the world. Such as One-wheel (American electric skateboard industry advocate), Raldey Boards, Birds, Piaggio Group etc.Contact now and we are happy to provide you with the suitable solution and quality test samples.

Product specification

42V 2A DC DC lithium battery charger
DC Input: 10V-48V DC
DC Output: 42V 2A
Efficiency: 88%
Certification:CE,EMC,ROSH,REACH
Dimension: 154*60*36mm 0.45kg

Item	Parameter
Part name	EMC Car Power Technology 12V24V36V Constant Current DC DC Converter
Model No	FY4202000D
DC Input	12V-48VDC
Output Voltage	42V
Output Current	2A
Protection	Short Circuit, Over Current and Over Voltage Protection.
Working Mode	CC - CV - TC
Efficiency	88%
Power Factor	0.9
HIPOT Testing	3000-3700V
Drop Testing	Meet UL standard.
Temperature	Case 65ºC Max.
Operating Temperature	-29ºC~ +45.5ºC
Storage Temperature	-40ºC~ +75ºC
AQL	MIL-STD-105E II CRI 0; MAJ 0.25; NIN 1.0
MTBF	30000 hours full rated load at 25ºC

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