Comparison of Conversol 5KW Off Grid Inverters-48V Battery

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June 5, 2018
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November 7, 2018

Comparison of Conversol 5KW Off Grid Inverters-48V Battery

Direct Comparison of the best selling Conversol 5KW Off Grid Inverters

In this brief article we put together the key characteristics of two very popular solar inverters / chargers. The Conversol MKS II (2nd generation) is compared with the VMII 5kW off-grid inverter. Both devices output a pure sinewave voltage of 230VAC with selectable charging current from 10Amp to 80Amp. Voltacon integrated the latest MPPT algorithm on each unit with 99% efficiency. Technically that means a more accurate tracking of the PV power at any time with minium loss of power less than 1%.

Comparison of 5kW Off-Grid  Inverters – 48V

MODEL Conversol MKS II 5000-48 Conversol VM II 5000-48
Rated Power 5000VA/5000W 5000VA/5000W
Part No 0610877900831 0610877900916
Parallel Capability YES, 9 units No
Parallel Part Number 31-010245-00G N/A
Antitrust-Kit No YES
Voltage 230 VAC 230 VAC
Selectable Voltage Range 170-280 VAC (For Personal Computers)  170-280 VAC (For Personal Computers)
 90-280 VAC (For Home Appliances)  90-280 VAC (For Home Appliances)
Frequency Range 50 Hz/60 Hz (Auto sensing) 50 Hz/60 Hz (Auto sensing)
AC Voltage Regulation (Batt. Mode) 230VAC ± 5% 230VAC ± 5%
Overload capacity 5s@≥150% load; 10s@110%~150% load;
100ms @ ≥200% load
5s@≥150% load; 10s@110%~150% load;
100ms @ ≥200% load
Efficiency (Peak) 90% 90%
Transfer Time 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
Battery Voltage 48 VDC 48 VDC
Floating Charge Voltage 54 VDC 54 VDC
Overcharge Protection 63 VDC 63 VDC
Solar Charger type MPPT MPPT
Maximum PV Array Power 4500W 4000W
MPPT Range @ Operating Voltage 120 ~ 430 VDC 120~450VDC
Maximum PV Array Open Circuit Voltage 450 VDC 500 VDC
Maxmum Solar Charge Current 80A 80A
Maximum AC Charge Current 80A 60A
Maximum Charge Current 80A 80A
Dimension, D X W X H (mm) 120 x 295 x468 100 x 300 x 440
Net Weight (kgs) 11.0 10
Communication Interface USB and RS232+Dry contact USB/RS232
Humidity 5% to 95% Relative Humidity(Non-condensing) 5% to 95% Relative Humidity(Non-condensing)
Operating Temperature -10℃ to 50℃ -10℃  to 50℃
Storage Temperature -15℃ to 60℃ -15℃ to 60℃


Full Spec 5kW Conversol MKS II 5000-48 Inverter charger with 450VDC and parallel function with communication cards. Up to 9 units will work together















Ultimate solution for high power solar phovoltaic arrays with maximum open circuit voltage 500Vdc. Conversol VM II 5000-48















Solar Panel Configuration – Example

Here, we recommend the wiring connection of solar panels with power rating from 250W to 315W

The minimum requirement of solar panels is 4 in series for the 5kW inverters with MPPT window 120-450V.

Minimum Power: 1 String of 4 panels in series (4 panels).

Full Power 2 string of 7 panels in series (14 Panels)

The above number is only a suggestion, other arrangements are also possible

The inverters are available from our official online solar shops please visit

We also offer free of any obligation design services for off-grid solar photovoltaic systems.

Designer and developer of solar photovoltaic systems from 1kW to Megawatt range. Steve worked for Alstom and General Electric for 11 years. He develops solar inverter and complete systems with energy storage that are affordable, easy to install, and have a quick return on investment.

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