Sterling Power PCU1250 Pro Charge Ultra 12V 50A Marine Battery Charger

Sterling Power PCU1250 — Pro Charge Ultra 12V / 50A Marine Battery Charger

The Sterling Power PCU1250 is a high-output, marine-grade AC battery charger built for 12V systems with large house banks requiring fast, complete shore power charging across up to three battery banks simultaneously. At 50A output it delivers serious charge current — enough to make a meaningful dent in even a large LiFePO4 or AGM bank during a typical marina stopover.

The Pro Charge Ultra platform has been refined over years of real-world marine use and won the innovation award at IBEX 2010. It runs on any global AC power source between 80–270V and uses Power Factor Correction (PFC) technology to reduce input current draw, generate less heat, and minimize electrical noise. A full 4-stage charge profile — bulk, absorption, float, and equalization — is applied automatically, with multiple battery type profiles including support for AGM, gel, flooded lead acid, and lithium. A battery temperature sensor is included for voltage compensation and thermal protection.

The PCU1250 is conformal coated for salt air and humidity, conforms to the ABYC drip test when mounted correctly, and uses non-ferrous metals throughout. Optional remote control (PCUR) available separately.

Key Specs:

• Output voltage: 12V
• Output current: 50A
• AC input range: 80–270V (global)
• Battery banks: up to 3 simultaneous outputs
• Power Factor Corrected (PFC)
• Includes: battery temperature sensor
• Warranty: 5 years
• Standards: UL1236, ABYC-31
• Optional remote: PCUR (sold separately)