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Smart dual-output shore-power charging
A premium 12V 50A Victron charger with a dedicated starter-battery output, Bluetooth, VE.Direct, and universal 120/240V shore-power capability.
The Victron Phoenix Smart IP43 charger solves a common marine and RV challenge: charging a large 12V house battery bank while keeping a separate starter battery ready. This PSC125051095 12/50(1+1) battery charger supplies up to 50A to the house bank plus a limited 4A starter-battery output, with programmable lithium profiles, Bluetooth VictronConnect control, and VE.Direct system integration.
Charge the house bank and maintain the starter battery from one AC source.
The primary output delivers up to 50A of multi-stage charging power to a substantial 12V house bank. The secondary “+1” output is limited to 4A maximum and operates at a slightly lower output voltage, making it ideal for maintaining or topping up a separate starter battery.
This design reduces charger count and wiring complexity in boats, motorhomes, commercial vehicles, and off-grid systems that use separate house and starting batteries.
The main output rapidly replenishes a 12V house bank after extended anchoring, boondocking, or off-grid use. Low-current mode reduces the output to 25A when a lower charge rate is preferred.
The limited starter output keeps an engine-starting or generator battery topped up while the primary channel handles the house bank. It is a maintenance output, not a second full-current 50A charger.
Configure the charger for Epoch LiFePO4, AGM, GEL, flooded lead-acid, or other approved 12V batteries.
Victron’s adaptive charging system provides selectable normal, high, and lithium modes. Lead-acid profiles use an adaptive six-stage algorithm, while the built-in lithium profile uses a dedicated three-stage process. The charge algorithm is also fully programmable through Bluetooth or VE.Direct, allowing the installation to match the exact voltage and current limits published by the battery manufacturer.
The lithium preset uses 14.2V absorption, no conventional float stage, and 13.5V storage. For an Epoch battery bank, confirm and enter the charging values for the exact battery model before commissioning.
Wireless setup, wired integration, protection, and quiet fanless operation.
Marine, RV, leisure, off-grid, industrial, and battery-maintenance systems.
Universal 120/240V-class input for marinas, campgrounds, generators, and international installations.
The charger operates from 85–250VAC at 45–65Hz, reaches full rated output from 100VAC, and can start at approximately 90VAC. A configurable 3–10A AC input-current limit helps match charging demand to a smaller generator or limited shore-power circuit.
The charger uses an IEC C14 AC inlet with an included retainer clip. A country-specific AC mains cord is ordered separately.
Complete the charger installation with the correct AC cord, data cable, monitoring, and DC protection.
Exact electrical, charging, communication, environmental, and mechanical details.
Use the correct mains cord, DC cabling, overcurrent protection, battery profile, and mounting location.
The country-specific AC cord is sold separately. Size the DC conductors and battery-side fuse for the 50A charging circuit, observe polarity, mount the charger vertically with adequate ventilation, and program the charging profile to the exact battery manufacturer’s specifications. Installation should be completed by a qualified person where marine, RV, or electrical codes require it.
Common questions about dual outputs, lithium settings, shore power, accessories, monitoring, and installation.
The 1+1 designation means the charger has one primary 50A output for a 12V house battery bank plus one secondary starter-battery output rated at 4A maximum. The secondary output is intended to maintain or top up a starter battery; it is not a second independently controlled 50A charging channel.
No. The charger uses an IEC C14 AC inlet with a retainer clip, and the country-specific mains cord is ordered separately. North American installations typically use Victron part ADA010100400, the 2-meter NEMA 5-15P mains cord, after confirming the outlet and installation requirements.
Yes, provided the charger is configured to match the exact battery model. The built-in lithium mode uses 14.2V absorption, no conventional float stage, and 13.5V storage. VictronConnect and VE.Direct also allow a fully programmable profile, so use the charging values published for your specific Epoch battery.
Yes. The charger supports a configurable maximum AC input-current setting from 3A to 10A, and the front-panel low-current mode limits the 12/50 model to 25A DC output. Configure the limit for the available AC source and verify that the generator or shore circuit can support the total connected load.
Yes. This 120/240V model operates from 85–250VAC at 45–65Hz, delivers full output from 100VAC, and can start from approximately 90VAC. Use the correct country-specific mains cord, branch-circuit protection, and shore-power connection for the installation.
No. The electronics enclosure is rated IP43 and the connection area is IP22. Install the charger vertically in a dry, protected, well-ventilated location where the AC inlet, DC terminals, VE.Direct port, and controls are not exposed to direct spray, standing water, or condensation.
The secondary output is limited to 4A maximum and is intended primarily for starter-battery maintenance and top-up charging. Recovery time for a deeply discharged starter battery can be long, and the battery must be compatible with the selected charging profile.
Bluetooth provides local monitoring and configuration through VictronConnect. For wider system integration, connect the VE.Direct port to a compatible GX device such as a Cerbo GX, then use the Victron Remote Management portal when the GX device has internet access.
No. It is an AC-to-DC battery charger and configurable DC power supply. It does not convert battery DC power back into 120V AC. A Victron MultiPlus or MultiPlus-II is the appropriate product category when both charging and inverter functionality are required.
Yes. The charger provides selectable normal, high, and lithium modes and can be fully programmed through Bluetooth or VE.Direct. Lead-acid batteries use the adaptive six-stage algorithm, while the lithium profile uses a three-stage algorithm. Always select settings approved by the battery manufacturer.
