EG4 6000XP After About 15 Months: What EG4 Documents and What Happened to Us

About 15 months with our EG4 6000XP: the owner describes one early battery problem, plus Wi-Fi and portal trouble. What EG4 documents and what we saw.

Last reviewed 2026-10-15.

What the manufacturer documents

• EG4's 6000XP specification sheet, version 1.4.4, lists a nominal output of 6000 W, a maximum continuous output current of 25 A at 240 V, and surge capacity of 12,000 W for about 3.5 seconds or 11,000 W for about 5 seconds. It lists 140 A maximum battery discharge current. (eg4electronics.com)
• The sheet lists two MPPTs with one input each, a maximum utilized solar power of 8000 W (4000 W per MPPT) and a recommended maximum solar input of 10,000 W. (eg4electronics.com)
• The sheet lists a recommended battery capacity of more than 200 Ah per inverter, a 48 VDC nominal battery voltage and a lithium battery voltage range of 46.4 to 60 VDC. We have not compared our battery bank with this figure. (eg4electronics.com)
• The sheet lists an idle consumption (standby) of about 50 W with battery, under 30 W with PV and under 50 W with AC, and notes that the idle value was tested with a constant 300 VDC PV source. It lists an IP20 ingress rating, an operating temperature range of 0 to 45 C (32 to 113 F) and 5-year standard warranty. (eg4electronics.com)
• The sheet lists default low DC warning and cut-off state-of-charge values of 20 percent and 15 percent, both marked configurable. We do not reproduce the settings procedure; the user manual has one. (eg4electronics.com)
• The user manual, version 1.7.3 (model EG4-6000XP-IN-03), has a section on lithium battery communications. It says closed-loop communication with compatible batteries uses a CAN or RS485 cable and a battery-type setting on the inverter, and that LifePower4 V1 batteries need a firmware update for closed-loop communication. We do not reproduce those steps. (eg4electronics.com)
• The manual says that for lithium batteries the inverter's LCD cycles through voltage, state of charge, power and capacity, and that the LCD shows daily and accumulated (total to-date) energy figures for PV and grid. It describes a Wi-Fi dongle for viewing monitoring data remotely, and points to a separate dongle troubleshooting guide. (eg4electronics.com)
• The user manual, as we read it, does not describe state-of-charge drift in a battery bank, nor how the online monitoring portal totals energy after a device is recreated or runs without internet. We found nothing in it on either subject. We make no statement here about the specification sheet on these subjects. (eg4electronics.com)

What happened to us

• Our 6000XP was ordered around October 2023 (the owner says 'I think, ish', per the order status) and has been in service for a little over a year and a few months at the time of the long-term video. The owner says it has been on continuously except for occasional maintenance around the system. (video)
• The owner describes the system as connected to two indoor EG4 WallMount batteries, a tower of server rack LifePower4 and LL batteries and a tower of Aolithium batteries, all in parallel. Battery communication was working only on the indoor WallMount batteries and one LifePower V2 battery; the others had no battery communication set up. (video)
• It was connected to a ground-mount solar array using one MPPT only, and to a load center that the owner says is not a subpanel. The owner says the inverter has not been connected to the grid, except perhaps once during testing, so the video says nothing about grid charging. (video)
• The owner says the loads were basement lights, two dehumidifiers and a window air conditioner, plus a 24,000 BTU Pioneer mini split and a 12,000 BTU Mr. Cool mini split from the load center. Load sizes in watts were not stated. (video)
• The one early issue the owner describes: the system was not consuming enough energy to drain and cycle the batteries, so the state of charge reading drifted. The owner says this eventually led to a large shutdown because the system did not know the real state of charge. The owner attributes it to the battery capacity and loads of our own system, and says it was not a fault of the inverter. That attribution is the owner's own view; the video does not show the shutdown, its date, the settings or a diagnosis. (video)
• Over about a year through four seasons the owner says there was not a single issue with any part of the system except that one. That is a statement about our one unit and setup, not a test result. (video)
• The owner says the monitoring portal shows about 1.5 MW of energy generated and used, and states that this is not entirely accurate: for a few weeks the unit ran without internet, and after some problems it was moved and recreated, which the owner thinks reset the data. The owner says the figure covers only the time since logging started. The owner says 'MW' in the video; the intended unit (probably megawatt-hours) was not confirmed. (video)
• The owner says a Tesla wall charger was installed only recently and the Tesla was charged at close to 6,000 W continuous, 'about three times', to drain the batteries down. These are spoken approximations; the video does not show readings or how long each session ran. (video)
• The owner says the unit's air filter had not been cleaned in an unfinished basement where dust was reduced with air barriers, paint and tape, and that it was working well. No inspection of the filter or inverter is shown. (video)
• In the earlier video, at a little over 6 months, the owner said the inverter worked right away with the batteries and one solar array and ran a 24,000 BTU Pioneer heat pump mini split in heating and cooling. The owner also said there were many problems getting the Wi-Fi working, over several days, and that the inverter ran without Wi-Fi connected. (video)
• In the earlier video the owner says the unit was among the first shipped, with screw-type battery terminals instead of the lugs that the owner says newer units have. The owner also says the unit is about 3,000 W per leg. Our unit's model number and firmware were not recorded. (video)

What we saw and what the documents say

What we did not verify

• This page is our experience with one 6000XP in one setup. It is not a recommendation to buy, install, change or repair anything, and it is not advice on sizing a battery bank, loads or settings.
• The state-of-charge issue is the owner's own explanation. We did not record the battery state of charge, the settings, the firmware or the date of the shutdown, and the video does not show the shutdown.
• The spoken Tesla charging figure of close to 6,000 W is approximate. It was not read from a meter on screen in this video and we did not establish sustained charging. EG4's documents are cited for the inverter only; Tesla's documents are not cited here.
• The portal energy total is, by the owner's own statement, not entirely accurate, and its unit was spoken as 'MW'. Do not use it as a measurement of our system.
• Our inverter was one of the first shipped, ordered around October 2023, and its model number and firmware were not recorded. The specification sheet (version 1.4.4) and manual (version 1.7.3) cited here are current at the time of drafting and may differ from our unit.
• Only some of our batteries communicated with the inverter. This note says nothing about how a fully communicating battery bank behaves.
• The inverter was not used with the grid for charging, and the video says nothing about generator use or long-term efficiency.
• Both videos are our statements; we did not test anything for this page. Sizing and installation are work for a licensed professional using the manufacturer's current documents.
• Not recorded: the inverter model number and firmware version, the date and conditions of the shutdown, any changes made specifically in response to the shutdown, the unit and basis of the portal energy total, the Tesla charger model, and any measured or corroborating charging readings and durations, the wattages of the loads, and the total number and capacity of batteries connected. The owner's recommendation statements in the long-term video are left out on purpose.

Questions and answers

Did the 6000XP have any problems in about 15 months?

The owner says one early issue: the batteries were not drained and cycled enough, the state of charge drifted and a large shutdown eventually followed. The owner attributes it to our own system and not to the inverter, and says the inverter itself had no other issue in about a year of continuous use. That statement is about inverter operation only: the owner also describes several days of trouble getting Wi-Fi working and a portal history that is incomplete. That is one unit and one setup.

Is the portal energy total accurate?

The owner says it is not entirely accurate. The unit ran for weeks without internet and was later recreated, which the owner thinks reset the data. The portal shows about 1.5 MW, which is the owner's spoken figure and unit.

Did you charge a Tesla from the 6000XP at 6,000 W?

The owner says the Tesla charged at close to 6,000 W continuous about three times. EG4's sheet lists a nominal output of 6000 W. The video shows no readings and no duration, so we cannot say it was sustained.

Is this a recommendation for the 6000XP?

No. This page records what EG4 documents and what happened to us, and it does not advise buying, installing or changing anything.

Sources

• EG4 6000XP specification sheet, version 1.4.4 (EG4)
• EG4 6000XP user manual, version 1.7.3 (EG4)

Videos this comes from

• EG4 6000XP Off-Grid Inverter Long term review | Mega Watts | 1 yr + – Our long-term review of the 6000XP after about 15 months
• EG4 6000XP off grid Inverter long term Review | 8000W PV | 480V VOC | 48V 120/240V Split Phase – Our earlier review of the 6000XP after about 6 months

Related topics

• EG4 6000XP and 12000XP Inverters

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