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.
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, Touch 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.
Similarly, 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.
The MultiPlus can be controlled and monitored via (VRM) if connected to a Cerbo.
To make full use of the VRM an internet connection is required. Read more about remote Monitoring here.
Split Phase and Parallel Operation
Boundless has experience with split phase and parallel system design, installation and programing including applications with higher power Quattro inverter chargers. These options are typically applicable for larger systems with high power needs, specialized professional systems and residential backup.
MultiPlus 12 | 2000 | 80 Inverter Charger
Battery Voltage
12V DC
Power
2000VA
Charger
80A
BMS Control
Yes
Weight
25lb
Size L/W/H
19.9/9.3/5.8 in
MultiPlus 12 | 3000 | 120 Inverter Charger
Battery Voltage
12V DC
Power
3000VA
Charger
120A
BMS Control
Yes
Weight
40lb
Size L/W/H
23.0/11.0/6.0 in
Off Grid Operation of all the Equipment in Your RV or Travel Trailer
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.
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.
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.