Sterling Power
Sterling Power PCU1220plus – Pro Charge Ultra Plus 12V 20A Battery Charger
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The Sterling Power PCU1220plus is a 12V 20A mains battery charger from the Pro Charge Ultra Plus range — a compact, switch-mode charger built to keep 12V banks properly topped up from shore power or a generator. It delivers a full multi-stage charge rather than a crude constant voltage, so lead, AGM, gel, and lithium banks are charged correctly and held at the right float.
Pro Charge Ultra Plus models add selectable battery profiles (including lithium), advanced diagnostics, and remote-control capability via the PCUR remote.
Charging Specifications
| Type | AC-input multi-stage battery charger (Pro Charge Ultra Plus) |
|---|---|
| Nominal output voltage | 12V |
| Max output current | 20A |
| AC input | Wide-range AC mains, 50/60 Hz (80–270V AC, 40–70Hz) |
| Charge profile | Multi-stage (bulk, absorption, float) |
| Battery types | Lead-acid, AGM, gel, and lithium |
| Remote | Compatible with the PCUR remote control |
| 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) |
| Ripple noise & ground leakage | 14mV RMS ripple noise; 0.5mA ground leakage |
| Ingress protection | IP22 |
| Recommended generator size | ~700W (unit draws ~350W nominal; size up for cold start) |
| Certifications | UL certificate available; ABYC drip-test compliant |
| Warranty | Backed by Sterling's factory warranty (5-year warranty) |
Key Features
- 12V 20A multi-stage mains charging
- Selectable profiles for lead-acid, AGM, gel, and lithium
- Remote monitoring and control via the PCUR
- 11 pre-programmed profiles (Gel, AGM, sealed lead-acid, open lead-acid, calcium, LiFePO4) plus 1 user-customizable profile
- Synchronized MOSFET rectification for improved efficiency over standard diode designs
- Automatic desulphation cycle every 7–10 days; programmable power reduction 100%/75%/50%/25%
- Temperature compensation via battery and internal sensors; redundant high-voltage protection; variable-speed thermostatic cooling fan
- 32-LED information panel, 2 digital meters (voltage/current), and 1 digital power meter
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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