The MultiPlus-II is a multifunctional inverter/charger with two AC outputs, suitable for professional marine, yachting, vehicle, and land-based off-grid systems, and provides the isolation and redundancy needed for Energy Storage System (ESS) setups.
PowerControl allows the MultiPlus-II to prevent grid or generator overload, while PowerAssist boosts AC power during peak demand by drawing from the battery.
Uninterrupted AC power: in the event of an outage, the inverter switches over in milliseconds, keeping computers and sensitive electronics running without interruption.
The battery charger combines speed with efficiency through a smart adaptive algorithm that extends battery life. Ready for expansion, the MultiPlus-II supports parallel and three-phase configurations when a system needs to scale.
Specification

Battery voltage: 48V nominal
Continuous power (25°C): 4,000 W
Continuous power (40°C): 3,700 W, (65°C): 3,000 W
Peak power: 7,000 W
Maximum efficiency: 95%
Maximum battery charge current: 55A, adaptive 4-stage charge algorithm
Charge voltages: absorption 57.6V, float 55.2V, storage 52.8V
AC transfer switch rating: 32A, max AC input current 32A
DC input voltage range: 36-60V
AC output: 230V, 50Hz
AC input voltage range: 187-265V, frequency range 45-65Hz
Zero load power: 20W (13W AES, 8W in Search Mode)
Communication port: VE.Bus
Number of AC outputs: 2, plus auxiliary output
External AC current sensor option: 50A or 100A
Protections: output short-circuit, overload, high/low battery voltage, over temperature, AC voltage on inverter output, excessive DC ripple
Operating temperature: -40°C to 65°C, fan-assisted cooling
Protection category: IP21
Dimensions: 590 x 275 x 149 mm
Weight: 22 kg
Material: steel, blue (RAL 5012)
Compliance: EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2
Warranty: 5 years standard (extendable to 10 years); lead-acid batteries 2 years, lithium batteries 3 years