21V 3A Li-ion Battery Charger for 5S 18.5V Battery
To secure uninterrupted operational cadence within localized automated workflows and heavy-duty portable test arrays, the Phonix® FX2103000 maintains a highly stabilized 63W continuous energy envelope as a commercial-grade 21V 3A Li-ion battery charger. Specifically tuned to maximize cell capacity retention and eliminate structural voltage drift across 5S 18.5V Lithium-ion and Li-Po battery architectures, this convection-cooled desktop platform optimizes inner magnetic pathways to mitigate parasitic thermal generation. The completely sealed, ruggedized housing isolates sensitive internal control circuits from abrasive factory dust, warehouse humidity, and industrial oils within a streamlined 133X58X31 mm mechanical layout. Delivering a verified full-load energy efficiency of ≥ 88.5% to minimize component thermal stress, the system utilizes a centralized safety microprocessor that executes microsecond hardware-level latching cuts during line anomalies, protecting assets against over-voltage, output short-circuits, and accidental reverse-polarity line connections. Engineered for zero-maintenance integration backed by a certified 100,000-hour MTBF and an authoritative 5-year factory warranty, this 3A power solution seamlessly satisfies enterprise compliance rules and international technical bid benchmarks (UL, CE, TUV, FCC, PSE, CCC).
Description
Grid-Compliant Low-Harmonic Power Delivery Matrix
Deploying multi-bay distributed charging setups on crowded industrial workbenches requires close management of grid current draw and electrical noise feedback to prevent interfering with sensitive laboratory instrumentation or localized plant automation lines. The Phonix® FX2103000 features an optimized, flame-retardant solid enclosure measuring 133X58X31 mm (weighing 350g) built entirely for passive natural air convection. By removing the open-frame cooling fans that typically pull in metallic soot and ambient moisture, this durable topology eliminates primary component degradation and tracking short-circuits. The balanced component geometry limits the total housing thermal rise to < 40°C during maximum constant-current delivery, ensuring stable power conversion and reliable continuous performance across multi-shift enterprise operations.
Technical Parameters
| Category | Technical Parameter | Engineering Specification | Remarks / Test Conditions |
|---|---|---|---|
| 1. Input Specs | Rating Input Voltage | 100 ~ 240 Vac | 50/60 Hz Universal Utility Grid Compliance |
| Input Voltage Range | 90 ~ 264 Vac | Maintains continuous output through severe line sags | |
| Rating Input Current | 1.10 A / RMS | @ 100V AC Input, Full Load (Calibrated safe industrial fuse line) | |
| Max Input Power | 71.2W | Calculated electrical baseline: Pout (63W) ÷ Efficiency (88.5%) | |
| 2. Output Specs | No Load Output Voltage | DC 21.0 V | Precision reference tolerance window |
| Output Voltage Range | DC 18.50V ~ 21.0V | Closed-loop dynamic saturation regulation curve | |
| Charging Current | 3A ±10% | Constant Current (CC) fast-charge bulk delivery phase | |
| Charging Voltage | DC 21.0 V ±0.2 V | Constant Voltage (CV) saturation curve management | |
| Pre-charge Current | 0.3A ± 0.1A | Automated safe recovery phase when internal cells drop ≤ 15V | |
| Charge-end Current | ≤ 0.3A ±10% | Strict 10% cutoff threshold to combat electrochemical polarization | |
| Suitable Battery Type | 5S Li-ion / Li-Po Battery Packs | Calibrated parameter alignment for 18.5V nominal cell arrays | |
| Timer Protection | — | Autonomous internal hardware phase runtime monitoring | |
| Max Output Power | 63W | Continuous continuous output power limit (21V X 3A) | |
| Ripple Voltage | ≤ 168mV | Full load, Peak-to-Peak (Vp-p high-frequency filter margin) | |
| Efficiency | ≥ 88.5% | Full load @ 220V AC (Low-power range engineering baseline) | |
| 3. Protection & Indicators | Short-Circuit / Reversed Protection | Yes / Yes | Instant microsecond solid-state isolation cutoff and latching lockout |
| Power LED State | Red | Primary AC utility input verified active | |
| Charging LED (No Battery) | All Off | Open-circuit standby verification status | |
| Charging LED (Active Charge) | Flashing One by One | Active sequential capacity charging cycle indication | |
| Charging LED (Finished) | All On / Green On | 100% cell saturation reached; automated safety termination active | |
| Charging LED (Error State) | All Flashing | Fault loop latch active (Over-temperature, line short, reverse lines) | |
| 4. Environmental | Operating Temperature | -10°C ~ +40°C | Sustained operation under full thermal stability saturation points |
| Storage Temperature | -40°C ~ +70°C | Protects component structural integration across long-range shipping transit | |
| Operating / Storage Humidity | < 90% RH / 0 ~ 95% RH | Non-condensing atmospheric evaluation limits | |
| Cooling Mechanics | Natural Convection | Zero mechanical noise; zero moving part wear vectors | |
| Vibration Resistance | 5MM / 50HZ / 600S | Meets non-operating equipment transit shock thresholds | |
| Impact Resistance | 1-meter drop test, 3 times | Chassis structural impact retention verified | |
| 5. Mechanical | Net Weight | 350g | Total mass of reinforced infrastructure assembly |
| Dimensions | 133 * 58 * 31 mm | Compact multi-layer mechanical space-saving layout | |
| Output Connector | Refer to Order Guide | Custom terminal options tailored to specific enterprise hardware systems | |
| 6. Safety & Reliability | Max Temperature Rise | < 40°C on casing | Tested under maximum continuous load saturation metrics |
| Safety Approvals | CE, TUV, FCC, PSE, CCC | Direct global shipping compliance authentication | |
| MTBF | 100,000 Hours | Calculated component lifecycle stress profiles | |
| ESD Immunity | 8.0 KV | Electrostatic arc safety separation line | |
| Hi-Pot Insulation | i/p to o/p: 3000V (1 min) | Galvanic primary to secondary safety barrier isolation |
Industrial Infrastructure Integration & Flexible Hardware Adaptability
The integrated dual-color LED signaling arrays allow facility technicians to track battery capacities instantly across shared staging benches without relying on external telemetry tools. For deployment locations that require a lower continuous current draw to prevent tripping minor circuit components, technical supervisors can check our low-current 21V 2A Li-ion battery charger specifications to balance line limits. Phonix® maintains wide-ranging OEM/ODM adjustment capabilities, allowing procurement managers to select specialized output terminations including standard DC barrels, insulated alligator clamps, custom 3-pin XLR connections, or polarized Anderson couplers configured according to strict international FCC equipment directives.
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