This 21.9V 4A LiFePO4 battery charger from Guangdong QINX is engineered for high-demand 6-cell battery configurations requiring faster charging cycles and stronger current support. With an output power of 87.6 watts, it significantly improves charging efficiency compared to lower-current models, making it suitable for devices with larger energy consumption or time-sensitive charging requirements.
The charger operates on a universal AC input range of 100–240VAC, enabling stable performance in global power environments. It supports a variety of regional AC plug types, including US, EU, UK, AU, JP, KR, and CN standards, making it ideal for international OEM distribution.
To accommodate different end-product designs, the unit offers flexible DC output connector compatibility and customizable cable solutions. Manufacturers can select or tailor specifications such as branding, enclosure design, output parameters, and packaging to match specific application requirements.
Compared with mid-power charging models, this 4A version provides stronger current output while maintaining controlled LiFePO4 charging characteristics, helping ensure both efficiency and long-term battery reliability.
Compatible output connector choices include:
Designed with comprehensive electrical protection for stable operation:
Complies with global regulatory standards:
UL / cUL / CE / FCC / RoHS / UKCA / PSE / SAA / CB / DOE Level VI
Suitable for international compliance and OEM mass production requirements.
| Series | Models | Output Voltage/Current/Power | Energy Efficiency |
| 21.9V 1W-438W DESKTOP LiFePO4 Chargers for 6 Cells 19.2V LiFePO4 Battery Packs |
QXP-BCD-21901000 | 21.9V 1A 21.9W | VI |
| QXP-BCD-21902000 | 21.9V 2A 43.8W | VI | |
| QXP-BCD-21903000 | 21.9V 3A 65.7W | VI | |
| QXP-BCD-21904000 | 21.9V 4A 87.6W | VI | |
| QXP-BCD-21905000 | 21.9V 5A 109.5W | VI | |
| QXP-BCD-21906000 | 21.9V 6A 131.4W | VI | |
| QXP-BCD-21907000 | 21.9V 7A 153.3W | VI | |
| QXP-BCD-21908000 | 21.9V 8A 175.2W | VI | |
| QXP-BCD-21909000 | 21.9V 9A 197.1W | VI | |
| QXP-BCD-21910000 | 21.9V 10A 219W | VI | |
| QXP-BCD-21911000 | 21.9V 11A 240.9W | VI | |
| QXP-BCD-21912000 | 21.9V 12A 262.8W | VI | |
| QXP-BCD-21913000 | 21.9V 13A 284.7W | VI | |
| QXP-BCD-21914000 | 21.9V 14A 306.6W | VI | |
| QXP-BCD-21915000 | 21.9V 15A 328.5W | VI | |
| QXP-BCD-21916000 | 21.9V 16A 350.4W | VI | |
| QXP-BCD-21917000 | 21.9V 17A 372.3W | VI | |
| QXP-BCD-21918000 | 21.9V 18A 394.2W | VI | |
| QXP-BCD-21919000 | 21.9V 19A 416.1W | VI | |
| QXP-BCD-21920000 | 21.9V 20A 438W | VI | |
| Optional DC Connectors | 5.5*2.5, 5.5*2.1, 5.0*3.0, 4.8*1.7, 4.0*1.7, 3.5*1.35, 2.5*0.7, 6.0*3.0, 6.5*4.0, 6.5*4.4, 6.5*4.5 (6.5x1.4), 6.3*3.0, 6.0*4.4, 5.0*1.0, 5.1*7.4, 5.0*7.4, 5.5*1.7, 6.4*4.0, 6.0*3.7, Center pin, Cigarette lighter, 2pin, 3pin, Micro USB, Mini USB, RJ11, Straight Barrel, Right Angle Barrel, KPPX-3P/4P, Molex 2 pin, Molex 6 pin, XT30/XT60/XT90, M16, Alligator dip, Anderson Torberry, Audio, RCA, XLR, D-tap, IP type, GX12/16/20, Circular type, Ez-go, LP20-3pin, Stripped and Tinned Leads, Typc C, Minifit-Molex, C14, C13, 9pin "D" Type, 4 pin/prong-Din, 6-Pin Molex Connector, 4 Pin Mini Din, Aviation Plugs, 8-PIN DIN, Coaxial, Crocodile clip, M19, 2/3-Pin Terminal Blocks, Switchcraft S760K, 3 pin 4 pin XLR Female/Male, CJT C2020HF-2P, CJT C2020F-TP, GT193110-02021-XX, GT193110-02021-01, GT193119-02021-01, SAE, WJ15EDGKM-3.81-2P, open wire, GX16 2 pin aviation, CNLINKO LP20 connector LP-20-C02PE-02-004B, LP-20-C02PE-01-022 connector, LP-20-C02PE-01-024, LP-20-C03PE-01-001A, LP-20-C03PE-01-022DC, CNLINKO YA20 connector YA-20-J04PE-01-001 YA-20-C04SX-03-201...... | ||
| Email us at info@qinxpsu.com if you need customized service. | |||
