I have a problem with the axpert vm iii inverter. The lithium battery is not charged with more than 10 amps.

U1: 60:13

U2: 25:16

On 2025/10/25 at 5:51 PM, ahmad almawal said:

I have a problem with the axpert vm iii inverter...

U1: 60:13

U2: 25:16

Assuming that this is a firmware issue (I don't know), unfortunately the latest available firmware for this model is 60.10 (almost certainly older than what you already have), and 25.16 (the same as what you have).

There is however a 68.13 firmware, hex file dated September 2025. This may or may not work for your model, see the thread below to decide. @Tarek Yag, you may want to include this one in your wonderful thread.

This is main (U1) factory firmware version 68.13 for the Axpert VM III 1.5kW, 4kW, and 6kW '28062 Twin. Do not use with any other model or version, although if your inverter comes with 60.xx, it may work, see above.

Use at your own risk. The hex file is dated 22/Sep/2025.

Firmware upload instructions for models with a removable display.

This firmware processes the QDOP command, so with suitably recent display firmware, it should support SoC% for settings 12,13, and 29 when connected to a suitable battery's BMS.

VM III_TWIN_6813.7z

Edited December 8, 2025Dec 8 by Coulomb

Hi i need help please for my inverter can here any body help me

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