QL0425000 4.2V 5A Charger for 1S Li-ion Battery
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Compatible with 1S 3.7V Li-ion batteries including LIPO and other lithium chemistries
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Regulated 4.2V output, with up to 5A high-speed charging current
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Smart charging process: pre-charge, constant current (CC), constant voltage (CV), and automatic cut-off
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Integrated safety protections: over-voltage, over-current, short circuit, and reverse polarity
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Multi-color LED indicators show power and charging status clearly
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Fully certified: CE, UL, FCC, TUV, PSE, CCC, SAA, RCM
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Ideal for lithium-powered security devices, LED systems, handheld tools, and hobby electronics
Description
QILIPOWER® QL0425000 4.2V 5A 1S Li-ion Battery Charger
for 3.7V LIPO Lithium Cells – CE UL FCC SAA RCM Certified
Specification Overview
Product Model: QL0425000
Brand: QILIPOWER®
Certifications: CE, UL, FCC, TUV, PSE, CCC, SAA, RCM
Application: 1S 3.7V Li-ion / LIPO battery
Warranty: 3 Years
Charging Mode: Pre-charge, Constant Current, Constant Voltage, Auto Cut-off
LED Indicator: Multi-color LEDs for power and status
Protections: OVP, OCP, Short Circuit, Reverse Polarity
Cooling: Natural air cooling
Use Case: Lighting, Security, Portable Equipment, Hobby Projects
📊 Technical Specifications
The Smart 4.2V 5A Li-ion Battery Charger Specifications (Model: QL0425000)
QILIPOWER® – Trusted Charging Solutions for Lithium Battery Systems Worldwide
| Item | Specification | Remark |
|---|---|---|
| Brand | QILIPOWER® | — |
| Model | QL0425000 | — |
| Warranty | 3 Years | Standard warranty |
| Input | ||
| AC Input Voltage | 100~240V AC, 50/60Hz | Global voltage support |
| Input Voltage Range | 90~264V AC | — |
| Rated Input Current | 1.0A | At 100V, full load |
| Max Input Power | 25W | — |
| Output | ||
| No Load Voltage | DC 4.4V | — |
| Output Voltage Range | 3.7V~4.2V | Constant voltage mode |
| Charging Voltage | 4.2V ± 0.2V | Optimized for 1S Li-ion |
| Charging Current | 5A ± 10% | Fast charge |
| Pre-charge Current | 0.5A ± 0.1A | Activated <2.8V battery voltage |
| Charge Termination Current | ≤1A ± 10% | Auto cut-off |
| Max Output Power | 21W | — |
| Ripple Voltage | ≤42mV | Full load |
| Charging Indicators | ||
| Power LED | Red | Power ON |
| Charging Status | Flashing | Charging |
| All On | Fully charged | |
| All Off | No battery | |
| All Flashing | Error | |
| Protection Features | ||
| Over Voltage | Yes | — |
| Over Current | Yes | — |
| Short Circuit | Yes | — |
| Reverse Polarity | Yes | — |
| Environment | ||
| Operating Temperature | -10 ~ +40°C | — |
| Operating Humidity | <90% RH | — |
| Storage Temperature | -40 ~ +70°C | — |
| Storage Humidity | 0 ~ 95% RH | — |
| Cooling | Natural air cooling | — |
| Vibration Resistance | 5mm / 50Hz / 600s | Non-operating |
| Drop Resistance | 1 meter x 3 times | Non-operating |
| Mechanical Details | ||
| Dimensions | 127 × 67 × 38 mm | Casing only |
| Weight | 270g | Net |
| Connector Type | Custom per order | — |
| Safety & Reliability | ||
| Max Case Temperature Rise | <40°C | At full load |
| Safety Certifications | CE, UL, FCC, TUV, PSE, CCC, SAA, RCM | Global approvals |
| MTBF | ≥30,000 hours | High reliability |
| ESD Protection | 8.0KV | IEC standard |
| Hi-Pot Insulation Test | 3000V AC (1 min) | Input to output |
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Adaptor for: 1S 3.7V Li-ion / LIPO battery packs
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Customized Charger: Plug type, shell, and output connector options available upon request