21V 20A Li-ion Battery Charger for 5S 11.1V Battery
To secure uninterrupted high-rate production cycles within multi-shift automated assembly grids, the Phonix® FX21020000 coordinates a continuous 420W power envelope as an industrial-grade 21V 20A Li-ion battery charger. Purpose-built to sustain demanding duty cycles for high-capacity 5S 18.5V Lithium-ion and Li-Po battery architectures, this heavy-duty convection-cooled platform bypasses thermal degradation via advanced internal magnetic path containment. The fanless, ruggedized enclosure locks out airborne ferrous dust, corrosive particulate matter, and ambient oil vapors, maintaining complete structural isolation within a robust 233X108X64 mm footprint. Delivering an elevated full-load energy efficiency of ≥ 92.5% to attenuate operational thermal dissipation, the charging system features a centralized microcontroller tracking matrix that initiates hardware-level latching protections against over-voltage, output short-circuits, and phase cross-connections. Validated for continuous deployment with a 100,000-hour MTBF and an authoritative 5-year factory warranty, this 20A fast-charging solution effortlessly fulfills enterprise procurement compliance criteria and rigid international technical bid benchmarks (UL, CE, TUV, FCC, PSE, CCC).
Description
High-Current Fleet Optimization via Totem-Pole Passive Thermal Management
Sustaining a high-amp 420W continuous electrical delivery matrix without mechanical airflow dependencies mandates specialized layout geometry to eliminate severe localized localized hot spots. The Phonix® FX21020000 implements a dense, solid-state aluminum alloy enclosure measuring 233X108X64 mm (weighing 1900g) configured for natural air convection. For intensive automated guided vehicle (AGV) mobile logistics, heavy-duty mobile warehouse robotics, and high-capacity drone ground hubs, the complete exclusion of open-air mechanical fans eliminates structural vulnerabilities to conductive carbon soot, abrasive dust, and moisture tracking that routinely short-circuit generic chargers. This ultra-reliable topology restricts case temperature elevation to < 40°C during maximum constant-current bulk charge phases, shielding sensitive internal multi-layer PCB pathways and mitigating long-term component drift.
Technical Parameters
| Category | Technical Parameter | Engineering Specification | Remarks / Test Conditions |
|---|---|---|---|
| 1. Input Specs | Rating Input Voltage | 100 ~ 240 Vac | 50/60 Hz Universal Grid Compliance |
| Input Voltage Range | 90 ~ 264 Vac | Maintains full-load output through line sags | |
| Rating Input Current | 4.63 A / RMS | @ 100V Input, Full Load (Industrial grid fuse safety line) | |
| Max Input Power | 454W | @ 100V Input, Full Load execution | |
| 2. Output Specs | No Load Output Voltage | DC 21.0 V | Precision reference tolerance window |
| Output Voltage Range | DC 18.50V ~ 21.0V | Dynamic closed-loop curve regulation | |
| Charging Current | 20A ±10% | High-rate Constant Current (CC) injection phase | |
| Charging Voltage | DC 21.0 V ±0.2 V | Constant Voltage (CV) saturation curve management | |
| Pre-charge Current | 2.0A ± 0.1A | Triggers when internal cell voltage ≤ 15V | |
| Charge-end Current | ≤ 2.0A ±10% | Strict 10% cutoff to combat electrochemical polarization | |
| Suitable Battery Type | 5S Li-ion / Li-Po Battery Networks | Calibrated for 18.5V nominal enterprise battery arrays | |
| Timer Protection | — | Autonomous phase limit monitoring | |
| Max Output Power | 420W | Continuous continuous output power envelope | |
| Ripple Voltage | ≤ 168mV | Full load, Peak-to-Peak (Vp-p value metrics) | |
| Efficiency | ≥ 92.5% | Full load @ 220V AC with full Synchronous Rectification | |
| 3. Protection & Indicators | Short-Circuit / Reversed Protection | Yes / Yes | Instant microsecond solid-state isolation cutoff |
| Power LED State | Red | AC infrastructure input active | |
| Charging LED (No Battery) | All Off | Standby open-circuit check status | |
| Charging LED (Active Charge) | Flashing One by One | Active sequential capacity tracking output | |
| Charging LED (Finished) | All On / Green On | 100% cell saturation reached; automated lockout active | |
| Charging LED (Error State) | All Flashing | Fault status latch active (Thermal, short, reverse lines) | |
| 4. Environmental | Operating Temperature | -10°C ~ +40°C | Sustained full-load operation under industrial floor profiles |
| Storage Temperature | -40°C ~ +70°C | Protects integrity across long-range shipping stress | |
| Operating / Storage Humidity | < 90% RH / 0 ~ 95% RH | Non-condensing atmospheric evaluation limits | |
| Cooling Mechanics | Natural Convection | Zero-noise, zero-moving-parts heat tracking rejection | |
| Vibration Resistance | 5MM / 50HZ / 600S | Meets non-operating factory transit and vibration criteria | |
| Impact Resistance | 1-meter drop test, 3 times | Chassis structural retention verified | |
| 5. Mechanical | Net Weight | 1900g | Total mass of reinforced high-power assembly |
| Dimensions | 233 * 108 * 64 mm | High-clearance mechanical structural profile | |
| Output Connector | Refer to Order Guide | Supports continuous high-current industrial termination styles | |
| 6. Safety & Reliability | Max Temperature Rise | < 40°C on casing | Tested under full thermal stability saturation points |
| 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 |
Enterprise Grid Protection & Heavy Fleet Deployment Logic
The sequential multi-stage LED capacity layout provides immediate operational transparency for remote site technicians managing dense fleet charging racks. For localized automation hubs requiring a lower current draw to prevent tripping sensitive localized substation breakers, engineering managers can review our lower-power 21V 1A Li-ion battery charger parameters to configure balanced distribution lines. Phonix® fully accommodates deep OEM/ODM modifications, empowering corporate buyers to select heavy-duty DC terminations like multi-point XLR couplers, custom GX16 aviation nodes, polarized Anderson blocks, or extreme-current copper-alloy XT90 links matching international TUV safety engineering directives.
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