secondly.... since this site is off-grid with no AC-in available... the wifi will be powered off if the inverter is in standby mode. Will I be able to do this update for my remote client without going on-site myself to initiate the update and re-start inverter ? I am unclear on how I can do a remote update if their wifi modem is turned off when inverter is in standby and ACout to Loads is turned off.

Does the download of the update occur first, while inverter is running loads ? Does the inverter sequence thru upload and restart without local power for the modem? .... will it work if I do it during the day when PV power is available, or do I need to go out to the site with a dedicated power source for the modem during the update and restart ?

Can anybody help me with an issue I am having with my EG4 6000XP? It has been running smoothly since Feb 2015 coupled with a 51.2V 100Ah rack battery V4. Then I bought another battery of the same type. During the day, after the old batt was completely charged, I mounted the new one and started charging it. I didn't turn off the inverter to do that operation as it was the same everything. Then, after sun started going down I started getting inverter shutdowns and after a couple of seconds it starts again. Then I compared two batteries and realized that the can protocol was not the same. I adjusted the new battery and the same happened: checking the inverter log I see the error code is 18(internal communication fault). Then I went back to the old battery and after a while: boom! Again error 18. Can anybody tell what happened and then how to fix it? Thanks in advance.

If and when I decide to parallel a second 6000XP with the first, I will either want to update the older inverter's firmware OR 'downdate' the new inverter's firmware to ccaa-190D0E. I have the EG4 mobile app on my smart phone and the 6000XP wi-fi dongle, and I understand the 6000XP firmware can changed with the mobile app and wi-fi dongle.

If I want to update the firmware, is is possible to:
1. download the newest firmware to my phone, when I am home and have a normal internet connection,
2. turn off the phone,
3. travel my remote site, and
4. update the 6000XP using the phone app and the firmware files stored on the phone?

If I want to downdate the firmware on the newer inverter , is it possible to:
1. copy the ccaa-190D0E files (which I have) to an appropriate folder on my phone,
2. turn off the phone,
3. travel my remote site, and
4. update the 6000XP using the phone app and the firmware files stored on the phone?

I am asking on behalf of myself and several members at DIYSolarForum.com. Thanks.

2025-11-16

• Based on ceaa-191011 or ceaa-1A1111.
• 1. Add Quick charge function.
• 2. Add Max AC input setting to reduce the charge power when the AC input over this value.
• 3. Add time setting for generator charge.
• 4. Add generator quick start and generator exercise function, remotely start generator for 20 mins.
• 5. Add generator warm up and cool down logic, waiting for 2 minutes when starting and shutting down the generator.
• 6. Add mode of lithium battery without communication （brand 30 31）
• 7. Add smart load power display.
• 8. Add buzzing prompt when triggering battery warning voltage.
• 9. Optimize the fan noise.
• 10. Optimize the fan logic by allowing fan3 to rotate together with fan1 and 2 to optimize the air duct.
• 11. Optimize the possible BUS voltage high alarm that may occur during battery overcharging.
• 12. Optimize relay switching stability.
• 13. Fix the issue of abnormal load power consumption calculation after enabling the AC COUPLE function;
• 14. Fix the issue of not clearing the W04 warning when setting from lithium battery to lead-acid battery type;
• 15. Modify the lower limit of Absorb voltage and Float voltage for lead-acid mode from 50V to 48V

I am confused.

What is the latest version for the 6000XP and do I have it?

It still gives me the option to upgrade again but I don't know if I should.

• Based on standard firmware ccaa-190D0E and ccaa-190F10.
• 1.Add ‘Export AC couple’ function. Once enable, the AC couple will be allowed to operate and export AC couple power to the grid when the inverter enters bypass or AC charge.
• 2.Optimize the BUS voltage high and EPS overload alarm issue during off grid operation.
• 3.Fix the issue of battery type and brand being modified after updating in the parallel system.

• 1. Added generator dry contact status ON/OFF on monitoring
• 2. Improved battery and BUS over voltage issues
• 3. Improved where the smart load power was not accounted for when connected to the grid
• 4. Improved where the smart load output had a long disconnection time when switching from on-grid to off-grid
• 5. Improved where the power flow display being abnormal in each phase under bypass status
• 6. Improved where could not switch to bypass when the PV off-grid status was abnormal in the parallel system
• 7. Improved where certain parameters would be reset to factory defaults when changing safety regulations or battery types
• 8. Improved where power generation not being saved or cleared
• 9. Improved where the dry contact did not work after GenBoost was enabled