21V 8A Li-ion Battery Charger for 5S 18.5V Battery Packs

Features:

Intelligent multi-stage charging: Pre-charge, CC (constant current), CV (constant voltage), and automatic cut-off
Dual-color LED indicator: real-time status display (charging/full)
Comprehensive protections: OVP (over-voltage), OCP (over-current), short-circuit, reverse polarity protection
100-240V AC input, global voltage compatibility
Lightweight and compact design, efficient heat dissipation
OEM/ODM customization available
Certified by CE, RoHS, FCC, UL (varies by model)
Ideal for: electric tools, e-bikes, LED systems, RC drones, robotics, and 5S 18.5V lithium-ion battery applications

Description

Brand: Phonix^®

Model: FX2108000

AC Input: 100 ~240V

DC Output: 21V 8A

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

FX2108000 21V 8A Li-ion Battery Charger for 5S 18.5V Battery 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	195W	Input:100V, Output: Full load
2.Output
No load output voltage	DC 21 V
Output voltage range	DC 18.50V ~ 21V
Charging current	8A ±10%
Charging voltage	DC 21V ±0.2 V
Pre-charge	0.8A ± 0.1A	Voltage≤15V
Charge-end current	≤1.6A±10%
Suit with battery type	5S Li-ion Battery
Timer	–
Max output power	168W
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	1788046MM	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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