16.8V 7A Li-ion Battery Charger for 4S 14.8V Battery
The Phonix® FX1687000 is an industrial-grade, high-capacity 16.8V 7A Li-ion battery charger specifically designed for heavy-duty charging cycles on 4S 14.8V Lithium-ion and Li-Po battery packs. Delivering a continuous 117.6W DC output, this fanless charger is housed in an expanded high-surface-area shell engineered to achieve optimal natural convection cooling for high-drain power tools, industrial equipment, and large-scale LED lighting displays. Driven by an advanced MCU core, it automatically regulates the complete standard charging profile (Pre-charge, Constant Current, Constant Voltage, and Auto Cut-off) with built-in hardware protection against over-voltage, over-current, short-circuits, and reverse polarity. Built for long-term fleet reliability with a 100,000-hour MTBF and a 3-year factory warranty, this flagship model carries full safety certifications (UL, CE, TUV, FCC, PSE, CCC) required for global distribution and enterprise procurement.
Description
117.6W High-Current Delivery & Advanced Fanless Dissipation
The Phonix® FX1687000 is engineered for high-demand enterprise environments requiring rapid charging turnarounds for large multi-cell battery packs. To safely sustain a continuous 117.6W power envelope without relying on loud, mechanical cooling fans, the internal electronics are integrated into a reinforced flame-retardant housing (178x 80 x 46 mm, weighing 800g). This robust construction provides a substantial surface area for natural air cooling, keeping the outer casing temperature rise well below < 40°C during maximum Constant Current delivery. It provides a pure, low-ripple DC current that eliminates cell stress during fast energy transfers, maximizing the life cycle of professional equipment battery packs.
Technical Parameters
| Category | Technical Parameter | Engineering Specification | Remarks / Test Conditions |
|---|---|---|---|
| 1. Input Specs | Rating Input Voltage | 100 ~ 240 Vac | 50/60 Hz Universal Input |
| Input Voltage Range | 90 ~ 264 Vac | Grid variance tolerance window | |
| Rating Input Current | 3.5 A / RMS | @ 100V Input, Full Load (With safety margin) | |
| Max Input Power | 128W | @ 100V Input, Full Load | |
| 2. Output Specs | No Load Output Voltage | DC 16.8 V | Precision voltage reference |
| Output Voltage Range | DC 14.8V ~ 16.8V | Dynamic curve regulation | |
| Charging Current | 7A ±10% | High-rate Constant Current (CC) stage | |
| Charging Voltage | DC 16.8 V ±0.2 V | Constant Voltage (CV) saturation window | |
| Pre-charge Current | 0.7A ± 0.1A | Triggers when battery voltage ≤ 12V | |
| Charge-end Current | ≤ 0.7A ±10% | Optimized cut-off current threshold for full cell saturation | |
| Suitable Battery Type | 4S Li-ion / Li-Po Battery Packs | Optimized for 14.8V nominal voltage configurations | |
| Timer Protection | — | Continuous state tracking | |
| Max Output Power | 117.6W | Continuous maximum power output | |
| Ripple Voltage | ≤ 168mV | Full load, Peak-to-Peak (Vp-p value) | |
| Efficiency | ≥ 93% | Full load @ 220V AC input | |
| 3. Protection & Indicators | Short-Circuit / Reversed Protection | Yes / Yes | Instant hardware cutoff with automatic recovery |
| Power LED State | Red | AC input source active | |
| Charging LED (No Battery) | All Off | Standby open-circuit state | |
| Charging LED (Active Charge) | Flashing One by One | Multi-stage charging in progress (Capacity feedback) | |
| Charging LED (Finished) | All On / Green On | Pack fully saturated; automatic cutoff active | |
| Charging LED (Error State) | All Flashing | Fault latch active (Short circuit, Reverse, Over-temp) | |
| 4. Environmental | Operating Temperature | -10°C ~ +40°C | Continuous operation at stable full load |
| Storage Temperature | -40°C ~ +70°C | Suitable for multi-zone shipping transit stress | |
| Operating / Storage Humidity | < 90% RH / 0 ~ 95% RH | Non-condensing moisture thresholds | |
| Cooling Mechanics | Natural Convection | Silent fanless heat dissipation | |
| Vibration Resistance | 5MM / 50HZ / 600S | Non-operating multi-axis vibration verification | |
| Impact Resistance | 1-meter drop test, 3 times | Casing structural integrity certified | |
| 5. Mechanical | Weight | 800g | Net weight of heavy-duty casing version |
| Dimensions | 178 * 80 * 46 mm | High-impact flame-retardant shell layout | |
| Output Connector | Refer to Order Guide | Highly customizable termination geometries | |
| 6. Safety & Reliability | Max Temperature Rise | < 40°C on casing | Measured at maximum stable power envelope |
| Safety Approvals | CE, TUV, FCC, PSE, CCC | Certified for direct global market shipping | |
| MTBF | 100,000 Hours | Calculated via continuous stress profiles | |
| ESD Immunity | 8.0 KV | Electrostatic isolation safety threshold | |
| Hi-Pot Insulation | i/p to o/p: 3000V (1 min) | Primary to secondary electrical testing |
Sequential LED Metering & OEM Interface Customization
The integrated multi-LED tracking interface provides real-time status during rapid charging sequences, keeping operations clear for workshop technicians. If your battery grid layout consists of medium-capacity cells requiring a slightly lower charging rate, you can analyze our high-efficiency 16.8V 5A Li-ion battery charger specification. Phonix® supports comprehensive factory OEM/ODM engineering changes, allowing enterprise buyers to select regional AC line cords (US, EU, UK, AU, JP) and specify heavy-duty DC outputs including XLR, GX16 Aviation terminals, Anderson powerpole links, or high-amp XT60 and XT90 couplings complying with international FCC regulations.
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