21V 7A Li-ion Battery Charger for 5S 18.5V Packs

✅ Features:

  • Intelligent charging: Pre-charge, Constant Current (CC), Constant Voltage (CV), Auto Cut-off

  • Output: 21V 7A, suitable for 5S (18.5V nominal) lithium battery packs

  • Dual-color LED indicators for charging status

  • Safety protections: OVP, OCP, SCP, Reverse Polarity

  • Global certifications: CE, UL, FCC, PSE, RoHS

  • Compact and efficient design

  • OEM & ODM services available

  • 3-year warranty


✅ 应用领域(Application):

  • Cordless power tools

  • LED lighting systems

  • RC hobby (airplane, car, boat)

  • Portable electronics

  • Electric scooter batteries

  • DIY energy storage systems

Description

21V 7A Li-ion Battery Charger Specification

 

Brand: Fangxin®

Model: FX2107000

AC Input: 100 ~240V

DC Output: 21V 7A

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:  178*80*46MM

Net Weight: 850g

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

Customized Charger: Acceptable

 

          FX2107000 21V 7A Li-ion Battery Charger for 5S 18.5V Packs

Item Specification Remark
1.Input
Rating input voltage 100~240 Vac, 50/60 Hz
Input voltage range 90~264 Vac
Rating input current 1.0 A/RMS Input:100V   Output: Full load
Max input power 167W Input:100V   Output: Full load
2.Output
No load output voltage DC 21 V
Output voltage range DC 18.50V ~ 21V
Charging current 7A ±10%
Charging voltage DC 21V ±0.2 V
Pre-charge 0.7A ± 0.1A Voltage≤15V
Charge-end current ≤1.4A±10%
Suit with battery type 5S Li-ion Battery
Timer
Max output power 147W
Ripple voltage ≤168mV Full load
Power LED Red Power on
Charging LED All off No battery
All on (or Green on) Finished
All flashing Error
Flashing one by one Charging
Shorted Yes
Reversed Yes
Efficiency ≥85% Full load @220V
3.Environment
Operate temperature -10 ~ +40℃
Operate humidity < +90% Relative humidity
Storage temperature -40 ~ +70℃
Storage humidity 0 ~ +95% Relative humidity
Cooling Natural
Vibration resistance 5MM / 50HZ/600S Non-operating condition
Impact resistance 1 meter drop test 3 times Non-operating condition
4.Mechanical
Net Weight 850g
Size 178*80*46MM Casing only
Connector Refer to order
5.Safety
Max. temperature rise < 40℃ on casing
Safety approval CE/TUV/FCC/PSE/CCC
MTBF 30000 H
ESD 8.0 KV
Hi-Pot Insulation i/p to o/p: 3000V (1 min)

 

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