Sterling Power
Sterling Power PCU4815plus – Pro Charge Ultra Plus 48V 15A Battery Charger
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The Sterling Power PCU4815plus is a 48V 15A mains battery charger from the Pro Charge Ultra Plus range — a compact, switch-mode charger built to keep 48V 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 | 48V |
| Max output current | 15A |
| AC input | Wide-range AC mains, 50/60 Hz |
| AC input voltage / frequency range | 80–270V AC, 40–70Hz |
| Charge profile | Multi-stage (bulk, absorption, float) |
| Charge profiles | 11 pre-programmed (AGM, Gel, Lead Acid, LiFePO4) plus 4 user-customizable profiles |
| Battery types | Lead-acid, AGM, gel, and lithium |
| Remote | Compatible with the PCUR remote control (up to 30 ft range, multi-lingual display) |
| Efficiency & Power Factor | 90.4% efficiency; Power Factor 0.976 @ 230V (Power Factor Correction rated 0.99) |
| Full-load AC current draw | 4.6A @ 230V |
| Ripple noise & ground leakage | 14mV RMS ripple noise; 0.5mA ground leakage |
| Ingress protection | IP22 splash rated; conformal-coated PCBs for salt-air and humidity resistance |
| Recommended generator size | ~900W operating (1800W for cold start) |
| Certifications | UL certificate; ABYC drip-test compliant |
| Dimensions, weight & outputs | 315 × 215 × 90mm; 3.0kg; 3 isolated charging outputs |
| Warranty | Backed by Sterling's factory warranty |
Key Features
- 48V 15A multi-stage mains charging
- Selectable profiles for lead-acid, AGM, gel, and lithium
- Remote monitoring and control via the PCUR, compatible up to 30 ft with multi-lingual display
- 3 isolated charging outputs
- Synchronized MOSFET rectification and Power Factor Correction rated 0.99 for high efficiency
- Automatic desulphation cycle every 7–10 days, with a progressive absorption charging algorithm
- Programmable power reduction at 100%/75%/50%/25%
- 32-LED information panel with dual digital meters
- Redundant high-voltage protection: digital primary plus analog backup
- Battery temperature sensor with automatic compensation
Presented by Overland Kitted
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