The Victron MultiPlus-II 12/4000/160-32 combines a 4000VA inverter with a 160A battery charger in one unit for 12V DC battery banks running 230V AC loads. It suits off-grid buildings, marine and vehicle systems, and backup power setups where a single integrated device is preferable to separate charger and inverter components.

Key features of the battery charger with inverter

• Inverter output, 4000VA continuous at 230V AC from a 12V DC bank.
• Battery charger, 160A with an adaptive four-stage algorithm suited to lead-acid, AGM, gel and lithium batteries.
• AC transfer switch, 32A rating with a transfer time of under 20 milliseconds.
• PowerControl, reduces charger current automatically when AC loads on shore or generator power are high.
• PowerAssist, draws on battery power to cover peak demand, letting a smaller AC supply handle larger loads.
• Dual AC outputs, one with UPS (no-break) function, one that can be disconnected to shed non-essential loads on battery power.
• Communication, VE.Bus interface for integration with GX devices and VictronConnect, plus a programmable relay for generator start/stop or alarms.

Applications

The 12/4000/160-32 fits off-grid cabins and remote buildings with 12V battery banks needing 230V AC output. It is also used on marine vessels and in vehicles with 12V systems that need shore power integration, and in backup power installations where fast recharging from a generator matters.

Charging in practice

At 12V, the 160A charger delivers a substantial charging power to a large battery bank during generator run time. The four-stage bulk, absorption, float and storage cycle helps protect battery life whether the bank is AGM, gel or lithium iron phosphate, provided the unit is configured correctly for the chemistry in use.

Specification highlights

This unit weighs 23.4 kg and carries GTIN 8719076072058. It ships under SKU PMP122405010.