21V 3A Li-ion Battery Charger for 5S 18.5V / 5-Cell Battery Packs

Features

  • Designed for 5S 18.5V lithium-ion battery packs

  • Intelligent charging with multi-stage process: Pre-charge, Constant Current (CC), Constant Voltage (CV), and Auto Cut-off

  • Dual-color LED indicators showing charging status

  • Comprehensive protections: Over-voltage (OVP), Over-current (OCP), Short-circuit (SCP), Reverse polarity

  • Compact, durable housing with efficient heat dissipation

  • Certified by CE, FCC, RoHS, UL for global market use

  • OEM/ODM customization services available

  • 3-year warranty ensuring reliable long-term performance

  • Adapt for cordless power tools, LED lighting systems, RC vehicles and drones, portable electronics, and other battery-powered devices.

Description

21V 3A Li-ion Battery Charger Specification

Brand: Phonix®

Model: FX2103000

AC Input: 100 ~240V

DC Output: 21V 3A

Charge Process: Pre-charge, CC, CV and Automatically Cut-off

Charger Indicator: With Double color LED for power capacity show

Output Protections: OVP, OCP, Shorted, Reversed

Safety Approval: CE, UL, TUV, FCC, PSE, CCC

Size:  133*58*31MM

Net Weight: 350g

Adaptor for: 5S 18.50V Li-ion Battery, Lipo battery, Lithium ion battery

Customized Charger: Acceptable

 

          FX2103000 21V 3A Li-ion Battery Charger for 5S 18.5V / 5-Cell Battery Packs

ItemSpecificationRemark
1.Input
Rating input voltage100~240 Vac, 50/60 Hz
Input voltage range90~264 Vac
Rating input current1.0 A/RMSInput:100V, Output: Full load
Max input power75WInput:100V, Output: Full load
2.Output
No load output voltageDC 21 V
Output voltage rangeDC 18.50V ~ 21V
Charging current3A ±10%
Charging voltageDC 21V ±0.2 V
Pre-charge0.3A ± 0.1AVoltage≤15V
Charge-end current≤0.6A±10%
Suit with battery type5S Li-ion Battery
Timer
Max output power63W
Ripple voltage≤168mVFull load
Power LEDRedPower on
Charging LEDAll offNo battery
All on (or Green on)Finished
All flashingError
Flashing one by oneCharging
ShortedYes
ReversedYes
Efficiency≥85%Full load @220V
3.Environment
Operate temperature-10 ~ +40℃
Operate humidity< +90%Relative humidity
Storage temperature-40 ~ +70℃
Storage humidity0 ~ +95%Relative humidity
CoolingNatural
Vibration resistance5MM / 50HZ/600SNon-operating condition
Impact resistance1 meter drop test 3 timesNon-operating condition
4.Mechanical
Weight350g
Size133*58*31MMCasing only
ConnectorRefer to order
5.Safety
Max. temperature rise< 40℃ on casing
Safety approvalCE/TUV/FCC/PSE/CCC
MTBF30000 H
ESD8.0 KV
Hi-Pot Insulationi/p to o/p: 3000V (1 min)

 

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