AOLITHIUM Rack Battery With EG4 Inverters: What We Said and What EG4 Documents

The owner could not get an EG4 6500 to communicate with AOLITHIUM rack batteries and ran them on a 6000XP without it. What EG4 documents.

Last reviewed 2026-10-15.

What the manufacturer documents

• The EG4 6000XP user manual, version 1.7.3 (model EG4-6000XP-IN-03), lists support for CAN or RS485 for lithium battery communications. Its section on lithium battery communications has a procedure for closed-loop communication with compatible battery modules, and a table of the inverter's communication pin assignments. We do not reproduce them here; see the manual. (eg4electronics.com)
• The same manual's warning code table lists a communication failure with the battery, and lists checks for it; we do not reproduce them here. The manual lists a separate battery fault code for the case where communication is normal but the battery management system is not allowing charging and discharging. (eg4electronics.com)
• EG4's 6000XP Battery Compatibility List, version 1.0 (model IV-6000-XP-IN-00, 2024), tabulates battery brands with a protocol type and compatible battery models. The brands it names are HINAESS, EG4, Homegrid, Pylon, UZ Energy, Pytes, Renogy, Sunwoda, Fortress, GSL Energy, BigBattery, BSL BATT, Volthium and Meritsun. AOLITHIUM is not among them. The list says information is subject to change without notice. (eg4electronics.com)
• EG4's 6000XP specification sheet, version 1.4.4, says the inverter has closed-loop communications and is able to communicate with EG4 48 V batteries and other battery brands, with a note that a firmware update may be required for closed-loop communications with LifePower4 batteries. Its battery data lists lead-acid or lithium types, a 48 VDC nominal voltage, a lithium voltage range of 46.4 to 60 VDC, a recommended battery capacity of more than 200 Ah per inverter, a maximum discharge current of 140 A and a maximum charge current of 125 A. The sheet's footnote gives the charge figure as 115 A at 48 VDC from AC and 125 A at 48 VDC from PV. These are inverter figures, not our measurements, and the sheet does not name AOLITHIUM. (eg4electronics.com)

What happened to us

• The owner said he bought the AOLITHIUM batteries around Black Friday 2023 because the price looked like a good deal, that he made the video partly because he found few reviews of them, and that he has no relationship with the battery company and was not contacted by it. He described the battery as a 48 volt lithium iron phosphate server rack battery (the video's title says 51.2 V 100 Ah) and called it a 5 kWh pack. The battery model number is not recorded. (video)
• He described the battery's front panel as having a display from its battery management system, four state of charge indicators, an alarm light, a run light, six DIP switches, dry contacts, and CAN and RS485 communication connectors. He said the display shows battery voltage, status, version numbers and the current going into or out of the battery. These are his descriptions of the battery as shown in the video; we do not state AOLITHIUM's specifications. (video)
• He said he was unsuccessful in getting communication working between these batteries and the 'EG4 6500 ex' as heard in the transcript; the exact inverter model is not recorded. He said he had seen people on forums say they got a battery or a set of these batteries communicating with the 6000XP or an 18K inverter by changing a DIP switch on the battery and an inverter battery setting, and that he did not do that himself. The video does not say what he tried, which cable or settings he used, or what the inverter showed. (video)
• He said he previously ran a single 6500 with these batteries, that it worked really well with no issues, and that he swapped it out because he wanted 240 V without two units. He said he was now using the 6000XP and talked mainly about it. He did not say whether the earlier 6500 setup used battery communication, other than the communication attempt described above. (video)
• He said his 6000XP system ran EG4 batteries, which he said have communication set up, and that he did not have communication set up with the AOLITHIUM batteries because, as he put it, the EG4 batteries are closed loop to themselves and these are closed loop to themselves, so he could not connect both that way. This is his reasoning; the video does not test it. (video)
• He said he had four of the AOLITHIUM batteries, with two of them in parallel acting as one unit and connected to a Victron Lynx Power In alongside his stack of EG4 LifePower4 batteries, so that they supplement the battery bank. He said it had worked well like this for the last 6 months with no issue, and later in the video said he had used and cycled them almost every day for two to three months with no issues so far. These two spoken durations differ and which one is right is not recorded. (video)
• He said the batteries read different states of charge, read aloud from a screen: about 77 percent, 78 percent and 59 percent in one view. He said two of them were almost always in sync or close to it, while the third was lower, which he thought might be because it did not have a second battery connected. He said that even with that second battery two units were not always close, giving made-up example numbers of 60 and 80-something to show the idea. He guessed the cause might be that they need more cycling or the way the cables share current, and told viewers to take that with a grain of salt. He did not diagnose it, and the video does not record readings over time. (video)
• He described the battery's supplied connector as the biggest downside he found, said it is not easy to find outside China, and said the supplied cables were about 3 AWG with a rating he thought was around 125 amps or less. He said he did not replace the connectors. The video shows no document or measurement for these ratings. We cite no AOLITHIUM document for these figures. (video)

What EG4 documents compared with what the owner said

What we did not verify

• This page is the owner's account of one setup, taken from one video. It is not a recommendation to buy, install, change or repair anything, and it is not advice on batteries, cables, connectors, inverter settings or sizing.
• We did not cite the battery maker's own documents, because that site is not one of the manufacturer sources this site cites. This note says nothing about what AOLITHIUM documents for its battery. Battery figures here are the owner's spoken statements.
• EG4's 6000XP Battery Compatibility List, version 1.0, does not name AOLITHIUM. We found no EG4 statement that this pairing is supported, and we cite no EG4 document for the 6500, because its exact model is not recorded in the transcript ('6500 ex' as heard).
• The EG4 documents we cite are the versions currently on EG4's website: the manual (version 1.7.3) and specification sheet (version 1.4.4). They may differ from what applied when the video was recorded, and the video date is not recorded here.
• A separate published note covers two other videos in which the owner showed battery information on 6000XP and 3 kW inverter screens with these batteries. This note does not reconcile the videos with each other, and the dates of the videos are not recorded here.
• The owner's forum remark about a DIP switch and an inverter setting is something he read and did not try. We do not give the switch or setting, and we have not verified it.
• The state of charge readings are approximate figures read aloud from a screen, and the owner called some of the numbers made up for illustration. We did not check the cause, and we do not show that the difference is a fault or is normal.
• Not recorded: the exact inverter model of the '6500 ex', the 6000XP and battery firmware versions, the AOLITHIUM model number, the cables and settings used in the communication attempt, what the inverter displayed, the date of the video and the length of use (the owner gave 6 months and two to three months). Also not recorded: the owner's answers to 8 follow-up questions on identification, history, measurements and dates that the video does not state.
• The video also contains purchase advice, current pricing and recommendation statements, which are left out on purpose, along with the owner's cable, bus bar and wiring layout suggestions.

Questions and answers

Does EG4 list AOLITHIUM batteries as compatible?

In the document we cite, EG4's 6000XP Battery Compatibility List, version 1.0, does not name AOLITHIUM among its battery brands. We found no EG4 statement that the pairing is supported.

Did communication between the AOLITHIUM batteries and the EG4 inverter work in this video?

The owner said he was unsuccessful getting communication working with the 6500 and that his 6000XP system runs the AOLITHIUM batteries without communication. He mentioned forum reports of it working on a 6000XP, which he did not try. A separate published note covers other videos where communication was shown on inverter screens.

Where does EG4 document battery communication for the 6000XP?

In the 6000XP user manual, version 1.7.3, in the lithium battery communications section and the warning code table. We do not reproduce the procedure.

Is this a recommendation for the AOLITHIUM battery or for any EG4 inverter?

No. This page records what the owner said in one video and what EG4 documents. It does not advise buying, installing or changing anything.

Sources

• EG4 6000XP Off-Grid Inverter User Manual, version 1.7.3 (EG4)
• EG4 6000XP Battery Compatibility List, version 1.0 (EG4)
• EG4 6000XP specification sheet, version 1.4.4 (EG4)

Videos this comes from

• AOLITHIUM 51.2v 100ah Server Rack Lithium LiFePO4 Battery Review | with EG4 6500 6000xp – Our review of the AOLITHIUM 51.2 V 100 Ah server rack battery with the EG4 6500 and 6000XP inverters (video date not recorded here)

Related topics

• EG4 6000XP and 12000XP Inverters

Follow along

New troubleshooting notes and comparisons come from our videos. Subscribe on YouTube or join the Discord. We do not collect email addresses on this site.