21V 2A Li-ion Battery Charger for 5 Batttery Packs
🔹 Features
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Output: 21V 2A
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Input: 100–240V AC, 50/60Hz
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For: 5S 18.5V Li-ion battery packs
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Intelligent charging: Pre-charge, CC, CV, auto cut-off
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Dual-color LED indicators for status monitoring
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Protection: Over-voltage, over-current, short-circuit, reverse polarity
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Compact and lightweight design
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Certified by CE, UL, FCC, PSE, CCC
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OEM/ODM customization available
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3-year warranty
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Widely used in cordless power tools, LED lighting systems, RC vehicles, drones, portable electronics, and battery-powered devices.
Description
21V 2A Li-ion Battery Charger Specification
Brand: Fangxin®
Model: FX2102000
AC Input: 100 ~240V
DC Output: 21V 2A
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: 113*44*30MM
Net Weight: 190g
Adaptor for: 5S 18.50V Li-ion Battery, Lipo battery, Lithium ion battery
Customized Charger: Acceptable
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FX2102000 21V 2A Li-ion Battery Charger for 5 Battery Packs |
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| 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 | 49W | Input:100V, Output: Full load |
| 2.Output | ||
| No load output voltage | DC 16.8 V | |
| Output voltage range | DC18.50V ~ 21V | |
| Charging current | 2A ±10% | |
| Charging voltage | DC 21V ±0.2 V | |
| Pre-charge | 0.2A ± 0.1A | Voltage≤15V |
| Charge-end current | ≤0.4A±10% | |
| Suit with battery type | 5S Li-ion Battery | |
| Timer | – | |
| Max output power | 42W | |
| 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 | ≥89% | 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 | ||
| Weight | 190g | |
| Size | 113*44*30MM | 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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