Sterling Power
Sterling Power PCU2420 – Pro Charge Ultra 24V 20A Battery Charger
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The Sterling Power PCU2420 is a 24V 20A mains battery charger from the Pro Charge Ultra range — a compact, switch-mode charger built to keep 24V banks properly topped up from shore power or a generator. It delivers a full multi-stage charge rather than a crude constant voltage, so your batteries are charged correctly and held at the right float.
Charging Specifications
| Type | AC-input multi-stage battery charger (Pro Charge Ultra) |
|---|---|
| Nominal output voltage | 24V |
| Max output current | 20A |
| AC input | Wide-range AC mains, 50/60 Hz (90–270V AC, 40–70Hz) |
| Charge profile | Multi-stage (bulk, absorption, float) |
| Battery types | Lead-acid, AGM, and gel |
| Dimensions, weight & outputs | 260 × 215 × 90mm; 2.0kg; 3 isolated DC outputs |
| Efficiency & power factor | 90.4% efficiency; power factor 0.976 @ 230V (0.99 PFC) |
| Full-load AC current draw | 9.8A @ 110V / 4.6A @ 230V |
| Ripple noise & ground leakage | 14mV RMS ripple noise; 0.5mA ground leakage |
| Ingress protection | IP22 |
| Recommended generator size | ~1200W for reliable cold start (unit draws ~600W at full load) |
| Warranty | Backed by Sterling's factory warranty (5-year warranty) |
Key Features
- 24V 20A multi-stage mains charging
- Correct, complete charging for lead-acid, AGM, and gel banks
- Compact, robust switch-mode design
- 11 pre-programmed charging profiles (AGM, Gel, Lead-Acid, LiFePO4) plus 4 user-customizable profiles
- Thermostatically controlled forced-draft cooling with variable fan speed
- BMS shutdown compatibility via auxiliary cable, with positive-signal activation for Power Supply Relay engagement
- Redundant high-voltage protection (digital plus analog backup)
- Configurable power reduction at 100%/75%/50%/25%
- Automatic desulfation/equalization cycle every 7–10 days
Need exact dimensions, output count, or AC input range? Contact us and we'll confirm from the datasheet.
Presented by Overland Kitted
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