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Axpert VM II Premium Plus
The Axpert VM II Premium Plus offers a wide PV input range starting at 30VDC, built-in WiFi and communication ports for remote monitoring and BMS integration, dual AC outputs for select models, high charging currents up to 120A, battery-independent operation, battery equalization for enhanced performance, and an anti-dust kit for durability.


Main Features
- Wide PV input range, starting from 30VDC for 1.5K/3K/4.2K models
- Built-in communication port for BMS
- Built-in WiFi with APP for remote monitoring
- Built-in feed-in grid function
- Dual AC outputsfor 4.2K/6.2K/8K models
- Maximum charging current 100A/120A based on models
- Battery independent design
- Battery equalization function to optimize battery performance and extend lifecycle
- Built-in anti-dust kit
MODEL | Axpert VM II Premium Plus 1.5K | Axpert VM II Premium Plus 3K | Axpert VM II Premium Plus 4.2K | Axpert VM II Premium Plus 6.2K | Axpert VM II Premium Plus 8K | |
Rated Power | 1500VA/1500W | 3000VA/3000W | 4200VA/4200W | 6200VA/6200W | 8000VA/8000W | |
INPUT | ||||||
Voltage | 230 VAC | 230 VAC | 230 VAC | 230 VAC | 230 VAC | |
Selectable Voltage Range | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) | |
Frequency Range | 50/60 Hz (Auto sensing) | 50/60 Hz (Auto sensing) | 50/60 Hz (Auto sensing) | 50/60 Hz (Auto sensing) | 50/60 Hz (Auto sensing) | |
OUTPUT | ||||||
AC Voltage Regulation (Batt. Mode) | 230 VAC ± 5% | 230 VAC ± 5% | 230 VAC ± 5% | 230 VAC ± 5% | 230 VAC ± 5% | |
Surge Power | 3000VA | 6000VA | 8400VA | 12400VA | 16000VA | |
Efficiency (Peak) | 0.93 | 0.93 | 0.93 | 0.93 | 0.93 | |
Transfer Time | 10 ms (For Personal Computers); 20 ms (For Home Appliances) | 10 ms (For Personal Computers); 20 ms (For Home Appliances) | 10 ms (For Personal Computers); 20 ms (For Home Appliances) | 10 ms (For Personal Computers); 20 ms (For Home Appliances) | 10 ms (For Personal Computers); 20 ms (For Home Appliances) | |
Waveform | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave | |
BATTERY | ||||||
Battery Voltage | 12 VDC | 24 VDC | 24 VDC | 48 VDC | 48 VDC | |
Floating Charge Voltage | 13.5 VDC | 27 VDC | 27 VDC | 54 VDC | 54 VDC | |
Overcharge Protection | 16 VDC | 32 VDC | 32 VDC | 63 VDC | 66 VDC | |
SOLAR CHARGER & AC CHARGER | ||||||
Solar Charger Type | MPPT | MPPT | MPPT | MPPT | MPPT | |
Maximum PV Array Open Circuit Voltage | 350 VDC | 450 VDC | 450 VDC | 500 VDC | 500 VDC | |
Maximum PV Array Power | 2000W | 3000W | 5000W | 6500W | 10000W (5000W x 2) | |
Maximum Solar Charge Current | 100 A | 100A | 120 A | 100 A | 120 A | |
Maximum AC Charge Current | 80 A | 80A | 100 A | 100 A | 120 A | |
Maximum Charge Current | 100 A | 100A | 120 A | 100 A | 120 A | |
Maximum PV Input Current | 13 A | 13 A | 18A | 18 A | 22 A x 2 | |
MPP Range @ Operating Voltage | 30 ~ 300 VDC (Min. 60VDC without battery connected) | 30 ~ 400 VDC (Min. 60VDC without battery connected) | 30 ~ 450 VDC (Min. 60VDC without battery connected) | 90~450 VDC (Min. 100VDC without battery connected) | 90~450 VDC | |
PHYSICAL | ||||||
Dimension, D X W X H (mm) | 90 x 288 x 357 | 90 x 288 x 357 | 115 x 300 x 435 | 115 x 300 x 435 | 141 x 322 x 497 | |
Net Weight (kgs) | 6.5 | 7 | 9 | 10.4 | 15 | |
Communication Port | RS232/RS485(BMS)/WiFi | RS232/RS485(BMS)/WiFi | RS232/RS485(BMS)/WiFi | RS232/RS485(BMS)/WiFi | RS232/RS485(BMS)/WiFi | |
OPERATING ENVIRONMENT | ||||||
Operating Humidity | 5% to 95% Relative Humidity (Non-condensing) | 5% to 95% Relative Humidity (Non-condensing) | 5% to 95% Relative Humidity (Non-condensing) | 5% to 95% Relative Humidity (Non-condensing) | 5% to 95% Relative Humidity (Non-condensing) | |
Operating Temperature | -10℃ to 50℃ | -10℃ to 50℃ | -10℃ to 50℃ | -10℃ to 50℃ | -10℃ to 50℃ | |
Storage Temperature | -15℃ to 60℃ | -15℃ to 60℃ | -15℃ to 60℃ | -15℃ to 60℃ | -15℃ to 60℃ |
General
Rated Power
Axpert VM II Premium Plus 1.5K | 1500VA/1500W |
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Axpert VM II Premium Plus 3K | 3000VA/3000W |
Axpert VM II Premium Plus 4.2K | 4200VA/4200W |
Axpert VM II Premium Plus 6.2K | 6200VA/6200W |
Axpert VM II Premium Plus 8K | 8000VA/8000W |
INPUT
Voltage
Axpert VM II Premium Plus 1.5K | 230 VAC |
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Axpert VM II Premium Plus 3K | 230 VAC |
Axpert VM II Premium Plus 4.2K | 230 VAC |
Axpert VM II Premium Plus 6.2K | 230 VAC |
Axpert VM II Premium Plus 8K | 230 VAC |
Selectable Voltage Range
Axpert VM II Premium Plus 1.5K | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) |
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Axpert VM II Premium Plus 3K | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) |
Axpert VM II Premium Plus 4.2K | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) |
Axpert VM II Premium Plus 6.2K | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) |
Axpert VM II Premium Plus 8K | 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances) |
Frequency Range
Axpert VM II Premium Plus 1.5K | 50/60 Hz (Auto sensing) |
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Axpert VM II Premium Plus 3K | 50/60 Hz (Auto sensing) |
Axpert VM II Premium Plus 4.2K | 50/60 Hz (Auto sensing) |
Axpert VM II Premium Plus 6.2K | 50/60 Hz (Auto sensing) |
Axpert VM II Premium Plus 8K | 50/60 Hz (Auto sensing) |
OUTPUT
AC Voltage Regulation (Batt. Mode)
Axpert VM II Premium Plus 1.5K | 230 VAC ± 5% |
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Axpert VM II Premium Plus 3K | 230 VAC ± 5% |
Axpert VM II Premium Plus 4.2K | 230 VAC ± 5% |
Axpert VM II Premium Plus 6.2K | 230 VAC ± 5% |
Axpert VM II Premium Plus 8K | 230 VAC ± 5% |
Surge Power
Axpert VM II Premium Plus 1.5K | 3000VA |
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Axpert VM II Premium Plus 3K | 6000VA |
Axpert VM II Premium Plus 4.2K | 8400VA |
Axpert VM II Premium Plus 6.2K | 12400VA |
Axpert VM II Premium Plus 8K | 16000VA |
Efficiency (Peak)
Axpert VM II Premium Plus 1.5K | 0.93 |
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Axpert VM II Premium Plus 3K | 0.93 |
Axpert VM II Premium Plus 4.2K | 0.93 |
Axpert VM II Premium Plus 6.2K | 0.93 |
Axpert VM II Premium Plus 8K | 0.93 |
Transfer Time
Axpert VM II Premium Plus 1.5K | 10 ms (For Personal Computers); 20 ms (For Home Appliances) |
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Axpert VM II Premium Plus 3K | 10 ms (For Personal Computers); 20 ms (For Home Appliances) |
Axpert VM II Premium Plus 4.2K | 10 ms (For Personal Computers); 20 ms (For Home Appliances) |
Axpert VM II Premium Plus 6.2K | 10 ms (For Personal Computers); 20 ms (For Home Appliances) |
Axpert VM II Premium Plus 8K | 10 ms (For Personal Computers); 20 ms (For Home Appliances) |
Waveform
Axpert VM II Premium Plus 1.5K | Pure Sine Wave |
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Axpert VM II Premium Plus 3K | Pure Sine Wave |
Axpert VM II Premium Plus 4.2K | Pure Sine Wave |
Axpert VM II Premium Plus 6.2K | Pure Sine Wave |
Axpert VM II Premium Plus 8K | Pure Sine Wave |
BATTERY
Battery Voltage
Axpert VM II Premium Plus 1.5K | 12 VDC |
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Axpert VM II Premium Plus 3K | 24 VDC |
Axpert VM II Premium Plus 4.2K | 24 VDC |
Axpert VM II Premium Plus 6.2K | 48 VDC |
Axpert VM II Premium Plus 8K | 48 VDC |
Floating Charge Voltage
Axpert VM II Premium Plus 1.5K | 13.5 VDC |
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Axpert VM II Premium Plus 3K | 27 VDC |
Axpert VM II Premium Plus 4.2K | 27 VDC |
Axpert VM II Premium Plus 6.2K | 54 VDC |
Axpert VM II Premium Plus 8K | 54 VDC |
Overcharge Protection
Axpert VM II Premium Plus 1.5K | 16 VDC |
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Axpert VM II Premium Plus 3K | 32 VDC |
Axpert VM II Premium Plus 4.2K | 32 VDC |
Axpert VM II Premium Plus 6.2K | 63 VDC |
Axpert VM II Premium Plus 8K | 66 VDC |
SOLAR CHARGER & AC CHARGER
Solar Charger Type
Axpert VM II Premium Plus 1.5K | MPPT |
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Axpert VM II Premium Plus 3K | MPPT |
Axpert VM II Premium Plus 4.2K | MPPT |
Axpert VM II Premium Plus 6.2K | MPPT |
Axpert VM II Premium Plus 8K | MPPT |
Maximum PV Array Open Circuit Voltage
Axpert VM II Premium Plus 1.5K | 350 VDC |
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Axpert VM II Premium Plus 3K | 450 VDC |
Axpert VM II Premium Plus 4.2K | 450 VDC |
Axpert VM II Premium Plus 6.2K | 500 VDC |
Axpert VM II Premium Plus 8K | 500 VDC |
Maximum PV Array Power
Axpert VM II Premium Plus 1.5K | 2000W |
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Axpert VM II Premium Plus 3K | 3000W |
Axpert VM II Premium Plus 4.2K | 5000W |
Axpert VM II Premium Plus 6.2K | 6500W |
Axpert VM II Premium Plus 8K | 10000W (5000W x 2) |
Maximum Solar Charge Current
Axpert VM II Premium Plus 1.5K | 100 A |
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Axpert VM II Premium Plus 3K | 100A |
Axpert VM II Premium Plus 4.2K | 120 A |
Axpert VM II Premium Plus 6.2K | 100 A |
Axpert VM II Premium Plus 8K | 120 A |
Maximum AC Charge Current
Axpert VM II Premium Plus 1.5K | 80 A |
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Axpert VM II Premium Plus 3K | 80A |
Axpert VM II Premium Plus 4.2K | 100 A |
Axpert VM II Premium Plus 6.2K | 100 A |
Axpert VM II Premium Plus 8K | 120 A |
Maximum Charge Current
Axpert VM II Premium Plus 1.5K | 100 A |
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Axpert VM II Premium Plus 3K | 100A |
Axpert VM II Premium Plus 4.2K | 120 A |
Axpert VM II Premium Plus 6.2K | 100 A |
Axpert VM II Premium Plus 8K | 120 A |
Maximum PV Input Current
Axpert VM II Premium Plus 1.5K | 13 A |
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Axpert VM II Premium Plus 3K | 13 A |
Axpert VM II Premium Plus 4.2K | 18A |
Axpert VM II Premium Plus 6.2K | 18 A |
Axpert VM II Premium Plus 8K | 22 A x 2 |
MPP Range @ Operating Voltage
Axpert VM II Premium Plus 1.5K | 30 ~ 300 VDC (Min. 60VDC without battery connected) |
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Axpert VM II Premium Plus 3K | 30 ~ 400 VDC (Min. 60VDC without battery connected) |
Axpert VM II Premium Plus 4.2K | 30 ~ 450 VDC (Min. 60VDC without battery connected) |
Axpert VM II Premium Plus 6.2K | 90~450 VDC (Min. 100VDC without battery connected) |
Axpert VM II Premium Plus 8K | 90~450 VDC |
PHYSICAL
Dimension, D X W X H (mm)
Axpert VM II Premium Plus 1.5K | 90 x 288 x 357 |
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Axpert VM II Premium Plus 3K | 90 x 288 x 357 |
Axpert VM II Premium Plus 4.2K | 115 x 300 x 435 |
Axpert VM II Premium Plus 6.2K | 115 x 300 x 435 |
Axpert VM II Premium Plus 8K | 141 x 322 x 497 |
Net Weight (kgs)
Axpert VM II Premium Plus 1.5K | 6.5 |
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Axpert VM II Premium Plus 3K | 7 |
Axpert VM II Premium Plus 4.2K | 9 |
Axpert VM II Premium Plus 6.2K | 10.4 |
Axpert VM II Premium Plus 8K | 15 |
Communication Port
Axpert VM II Premium Plus 1.5K | RS232/RS485(BMS)/WiFi |
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Axpert VM II Premium Plus 3K | RS232/RS485(BMS)/WiFi |
Axpert VM II Premium Plus 4.2K | RS232/RS485(BMS)/WiFi |
Axpert VM II Premium Plus 6.2K | RS232/RS485(BMS)/WiFi |
Axpert VM II Premium Plus 8K | RS232/RS485(BMS)/WiFi |
OPERATING ENVIRONMENT
Operating Humidity
Axpert VM II Premium Plus 1.5K | 5% to 95% Relative Humidity (Non-condensing) |
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Axpert VM II Premium Plus 3K | 5% to 95% Relative Humidity (Non-condensing) |
Axpert VM II Premium Plus 4.2K | 5% to 95% Relative Humidity (Non-condensing) |
Axpert VM II Premium Plus 6.2K | 5% to 95% Relative Humidity (Non-condensing) |
Axpert VM II Premium Plus 8K | 5% to 95% Relative Humidity (Non-condensing) |
Operating Temperature
Axpert VM II Premium Plus 1.5K | -10℃ to 50℃ |
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Axpert VM II Premium Plus 3K | -10℃ to 50℃ |
Axpert VM II Premium Plus 4.2K | -10℃ to 50℃ |
Axpert VM II Premium Plus 6.2K | -10℃ to 50℃ |
Axpert VM II Premium Plus 8K | -10℃ to 50℃ |
Storage Temperature
Axpert VM II Premium Plus 1.5K | -15℃ to 60℃ |
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Axpert VM II Premium Plus 3K | -15℃ to 60℃ |
Axpert VM II Premium Plus 4.2K | -15℃ to 60℃ |
Axpert VM II Premium Plus 6.2K | -15℃ to 60℃ |
Axpert VM II Premium Plus 8K | -15℃ to 60℃ |
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Brochure | Axpert_VM_II_Premium_Plus_1.5K to 8K |
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Manual | Axpert_VM_II_Premium_Plus-1.5K-6.2K |
Off-Grid Inverter Axpert VM II Premium Plus
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