Powerful Battery Chargers Combined with Flexible Inverters | Fully integrated with the Battery Management System for Charge and Discharge Enable Control | Power Assist and Power Control to Accomodate Limited Shore Power Capacity
Powerful Battery Chargers Combined with Flexible Inverters. Power Assist and Power Control

    Combined Battery Charger and Inverter in a Compact Unit

    An Inverter Charger serves two main purposes. To charge the battery when AC power is available and to convert 12V DC current into 110V AC current when AC power is required but shore power is not available.

    Boundless recommends and installs Victron Energy Inverter Chargers.

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    In Charger Mode

    In charge mode the charger has two modes for a lithium battery, bulk and float. Bulk mode is used when the battery needs to be charged. Float mode is used when the battery is fully charged to maintain a low (float) level of current into the battery to approximately balance the current used to maintain the battery close to 100% charged.

    In Inverter Mode

    The MultiPlus is a true sine wave inverter suitable for sensitive electronic such as laptops and robust enough for larger loads. When the MultiPlus is operating in Inverter mode, the battery will generate AC power up to its power rating to support AC loads.

    PowerControl - Dealing with Limited Generator or Shore Power

    The MultiPlus is a very powerful battery charger. It will therefore draw a lot of current from the generator or shore power connection (nearly 20A for a 3kVA MultiPlus on 120VAC). With the MultiPlus control panel, Color Control GX or VE.Bus Smart Dongle, a maximum generator or shore power current can be set. The MultiPlus will then take account of other AC loads and use whatever is extra for charging, thus preventing the generator or shore power from being overloaded.

    Similarily, even if not charging, PowerControl will limit AC power draw from a generator or shore power and supplement with PowerAssist as needed to meet demands unto the rating of the Mu

    PowerAssist - Boosting the Capacity of Shore or Generator power

    This feature takes the principle of PowerControl one step further. It allows the MultiPlus to supplement the capacity of the alternate source. When peak power is so often required for a limited period, the MultiPlus will make sure that insufficient shore or generator power is immediately compensated for by power from the battery. When the load reduces, the spare power is used to charge the battery. This enables a relatively small generator to run a single air conditioners using battery power assistance.

    Setting Configuration and Remote Monitoring

    Settings in the MultiPlus will be configured by Boundless to suit the battery as part of the installation. Configuration will include the programming of Assistants to enable proper charge and discharge control of the MultiPlus via the BMS. Victron and non-Victron BMS's are supported.
    The MultiPlus can be controlled and monitored via (VRM) if connected to a Color Control GX or Venus GX.
    To make full use of the VRM an internet connection is required. Read more about remote Monitoring here.

    MultiPlus 12 | 2000 | 80 Inverter Charger
    Battery Voltage

    12V DC





    BMS Control




    Size L/W/H

    20.5/10.0/5.0 in

    MultiPlus 12 | 3000 | 120 Inverter Charger
    Battery Voltage

    12V DC





    BMS Control




    Size L/W/H

    14.3/10.2/8.6 in

    Off Grid Operation of all the Equipment in Your RV or Travel Trailer

    • UPS
      Uninterrupted AC power (UPS function)

      In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.

    • AC Powered Devices
      Unique PowerAssist feature

      The MultiPlus will prevent overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery.

    • AC Powered Devices
      Run AC Powered Loads from your Battery

      The 12 | 2000 | 80 Inverter Charger will run smaller AC powered devices such as microwaves and coffee makers directly from the battery. The 12 | 3000 | 120 will run larger loads including the air conditioner. The full comforts of home even without hookups.


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