EG4 Chargeverter GC vs Chargeverter Plus: Specifications Side by Side and What We Have Run

EG4's Chargeverter GC and Chargeverter Plus compared on EG4's own documents, with what we have run. Not a recommendation.

Last reviewed 2026-10-15.

What the manufacturer documents

• EG4's Chargeverter GC specification sheet, version 1.0 (model CU-48|5000-GD), lists an adjustable charge current of 0 to 100 A at 240 V, 0 to 45 A at 120 V and 0 to 50 A at 208 V, a maximum output of 5120 W at 240 V and 3050 W at 120 V, and a maximum efficiency of 94 percent at 240 V and 92 percent at 120 V. It lists an adjustable charge voltage of 43 to 57 V with a default of 54 V. (eg4electronics.com)
• The same GC specification sheet, version 1.0, lists an AC input range of 90 to 264 V, 50 to 60 Hz, a maximum input current of 26 A at 240 V and 28 A at 120 V, and an idle consumption of about 10 W without stating conditions. Its text describes a built-in breaker, and it lists a communication port of RS485 on an RJ45 jack and dry contacts NO, NC and C on an RJ11 jack. (eg4electronics.com)
• The same GC specification sheet, version 1.0, lists an operating temperature range of 14 to 131 F (minus 10 to 55 C), a storage range of 5 to 140 F (minus 15 to 60 C), humidity of 5 to 95 percent relative humidity non-condensing, ingress protection IP21 and an operating altitude of 0 to 4921 ft (0 to 1500 m). It lists dimensions of 5 by 13.2 by 4.9 in (127 by 335 by 124 mm) height by width by depth, a net weight of 13 lbs (5.9 kg) and a warranty of 3 years, only when used indoors. It lists no ripple, noise level or certifications. (eg4electronics.com)
• EG4's Chargeverter GC manual, version 1.1.5 (2026 copyright, no date printed), repeats the GC output figures and adds a table of maximum DC output current by AC input: 45 A at 120 V and 28 A, 50 A at 208 V and 26 A, and 100 A at 240 V and 26 A. Its mounting section gives an ambient temperature of 32 to 131 F (0 to 55 C), while its specification table lists an operating range of 14 to 131 F (minus 10 to 55 C). (eg4electronics.com)
• The GC manual, version 1.1.5, describes the GC's voltage and state of charge start and stop settings as used only for auto generator start, with state of charge used if the charger communicates with a battery over RS485 and voltage if it does not. It lists a built-in cooldown of about 2 minutes after the stop point when charging from a generator and a settable charge current of 0 to 100 A. It has installation, mounting and parameter-setting sections, which we do not reproduce here. (eg4electronics.com)
• EG4's Chargeverter Plus user manual, version 1.0.3 (changelog entry dated 6-23-26; model CU-48-5000-OD-01), lists an adjustable charge current of 0 to 100 A at 240 V, 0 to 50 A at 120 V and 0 to 80 A at 208 V, and a maximum output of 5120 W at 240 V and 2560 W at 120 V. It lists an adjustable charge voltage of 40 to 60 V with a default of 57 V, and its changelog says version 1.0.3 modified the default charging voltage to 57 V. It lists an output ripple of less than 500 mV (printed as 500mv) and no efficiency figure. (eg4electronics.com)
• The Plus manual, version 1.0.3, lists an AC input range of 90 to 264 V, 50 to 60 Hz, a maximum input current of 26 A at 240 V and 28 A at 120 V, and an idle consumption of about 4 W without stating conditions. It lists a CAN/RS485 communication port on an RJ45 jack, dry contacts NO, NC and C, battery compatibility of 15s or 16s cell lithium batteries, and selectable RS485 protocols P01-GRW, P02-LUX and P03-EG4 and a CAN protocol P01-LUX. (eg4electronics.com)
• The Plus manual, version 1.0.3, lists an operating temperature range of minus 40 to 131 F (minus 40 to 55 C), a storage range of minus 40 to 158 F (minus 40 to 70 C), humidity of 5 to 95 percent relative humidity non-condensing, ingress protection IP54, which it describes as protection from dust and small amounts of splashing water, and an operating altitude of 0 to 9843 ft (0 to 3000 m). It lists dimensions of 4.3 by 16.1 by 7.1 in (110 by 410 by 180 mm), a net weight of 13.67 lbs (6.2 kg) while its mounting note gives 6.4 kg, noise of less than 65 dB, certifications UL1012 and FCC Class B, and a warranty of 3 years, only when used indoors. (eg4electronics.com)
• The Plus manual, version 1.0.3, says its PSU Fault indicator activates on over-temperature protection, short-circuit protection, AC input over-voltage or under-voltage protection, fan failure, output over-voltage protection or PSU module communication failure. It describes a settable preheat time and cooling time of 0 to 5 minutes and a charging time of 0 to 180 minutes (0 disables it), and a charge current setting of 2 to 100 A in its parameter table although its specification table says 0 to 100 A. It has installation, mounting and parameter-setting sections, which we do not reproduce here. (eg4electronics.com)
• EG4's Chargeverter Plus specification sheet, version 1.0 (2025 copyright), lists a charge voltage of 40 to 60 V with a default of 40 VDC, an output ripple of less than 500 mV (printed as 500mv), and the same charge current and maximum output figures as the Plus manual. It describes the IP-54 rating as protection from limited dust ingress and splashing water, allowing for installation outside, and lists a net weight of 13.67 lbs (6.2 kg) and a warranty of 3 years, only when used indoors. It lists no efficiency figure. (eg4electronics.com)

What happened to us

• In our 2024 review of the Chargeverter GC (the GC is the black second-generation unit; the older yellow unit is the original Chargeverter) we described the GC as having quick-connect AC and battery connections, separate mounting brackets, a communication cable and dry-contact cables, and the yellow original as having none of the communication or generator-control features. We said both would work on 240 V and could run on 120 V at roughly half the amperage, about 45 A for the GC, and that at 208 V the GC would not reach the full 100 A. These are our spoken descriptions and approximate figures, not measurements. (video)
• On camera we set the GC to charge at 54 V and 100 A (the current setting was at 10 before we stepped it up), then switched on its breaker, which we read off the unit as a 125 A breaker (EG4's GC documents do not state a breaker rating). The current readout started at about 23 A and was stepping up through about 24 A, then through the 40s, and later hovered around 74 to 75 A. The battery bank was at roughly 96 percent state of charge. We said it may not reach 100 A at that point, that we had seen the GC charge at close to about 98 to 99 A with the bank at around 20 percent state of charge and had not seen a steady 100 A, and that a reading below 100 A at high state of charge did not mean to us that the unit was broken. These are spoken figures and on-screen readings in one short demonstration; the reason for the lower current is our explanation, not tested and not stated in EG4's documents, and the AC input voltage was not stated. (video)
• In the GC video we said we mainly use the battery start and stop voltage settings rather than state of charge, that we would not combine the two, and that using the charger's battery communication uses the host battery connection that an inverter would also use. We described the start and stop thresholds as starting and stopping charging; the GC manual describes them as used for auto generator start. We did not test the difference. We did not demonstrate battery communication, because the cable was not long enough to reach the other battery bank. (video)
• The GC screen showed a 0 at the top right that we described as normal operation and said changes to 1 during the generator cool-down, which we said we believed lasts maybe 2 to 4 minutes (the GC manual lists about 2 minutes). When we switched the breaker off the current went to 0 A and the internal fan kept running at a lower speed for a while. (video)
• Our second-generation Chargeverter GC, a 5 kW unit, stopped working. In the video we said we troubleshot it with EG4 by changing voltages and settings and checking versions, and could not find the cause. The owner later confirmed that it stopped charging entirely, with no output and no error, a few months before the Chargeverter Plus was released; those failure details are the owner's recollection, not something the video states. (video)
• Signature Solar's support gave us a credit toward the new Chargeverter Plus for the failed unit (the credit giver is the owner's confirmation; the video says only that we received a little credit back). TGBATG earns commissions as a Signature Solar affiliate. (video)
• We described the Chargeverter Plus as the third generation (yellow original, then GC, then Plus), installed it in place of the failed GC and reused the GC's power cord and battery cables. We said the Plus is slightly bigger than the GC, and the video shows the two side by side. We mounted it a small gap off the backboard for air space. (video)
• For the first charge on the Plus we set the voltage start threshold to 43 V, the voltage stop threshold to 55 V and the charge current to 95 A, without battery communication or the generator control cable, so the state of charge showed as lost. We said the output ramped up to about 94.5 A. These are the settings of this setup, not recommendations, and the video does not show a longer run. (video)
• In the Plus video we said it is rated about IP54 early on and called the case IP67 later. We also said that if the Plus is rewired for 120 V only its maximum output is 50 A, and that the screen looks essentially the same as the GC's. The Plus is installed indoors (the owner's confirmation). (video)
• The short video says our previous 5 kW Chargeverter GC was not working, that we troubleshot it with EG4 and then went the RMA or warranty route, and that we received a little credit back toward the new unit. The video does not say who gave the credit. We did not record the amount or terms. (video)

Specifications side by side

What we did not verify

• This page compares what EG4's documents state. The only figures from our own use are in the section on what happened to us, and they are spoken or on-screen readings from videos, so they are approximate.
• EG4 changes its documents over time. We cite the GC specification sheet version 1.0 (2024 copyright) and manual version 1.1.5 (2026 copyright, no date printed), and the Plus specification sheet version 1.0 (2025 copyright) and manual version 1.0.3 (changelog dated 6-23-26). Our GC review is from August 2024, so the GC unit we reviewed may have shipped with different documents.
• The two Plus documents disagree on the default charge voltage (57 V in manual version 1.0.3, 40 V in specification sheet version 1.0; each is cited separately above), and the Plus manual lists a minimum charge current of 2 A in one table and 0 A in another. We do not know which applies to a given unit.
• The documents do not list charge stages, a charge profile or the conditions behind idle consumption, so this page does not compare them. The documents' protection information is limited to what is listed in the table; we make no statement about how the units behave in a fault.
• Not recorded: neither video states the model number or firmware of our GC or Plus, the AC input voltage used in the GC review or the Plus first charge, whether the GC in the review is the unit that later stopped working, how long that GC ran before it stopped, or how the Plus has been used beyond the first charge in the video. We have not run the two units side by side and did not measure efficiency, heat, noise or idle consumption. The GC demonstration in the review is a single short run with the battery bank near 96 percent state of charge, and the 98 to 99 A figure is a recollection from another occasion.
• In the Plus video we said IP54 and later IP67, while the Plus manual lists IP54. The manual lists the 3-year warranty only when used indoors, ours is installed indoors, and we have not checked the warranty terms that applied to either unit. Mounting, installation and settings are covered in EG4's manuals, which this page does not reproduce.
• We do not know why our Chargeverter GC stopped working, and one failed unit says nothing about the GC or the Plus in general.
• Selecting, wiring, mounting or setting up a charger is work to be done from the manufacturer's current documents, with a licensed professional where required.

Questions and answers

What charge current do EG4's documents list for each?

Both list up to 100 A at 240 V. At 120 V they list 45 A for the GC and 50 A for the Plus, and at 208 V 50 A for the GC and 80 A for the Plus.

Do the two list the same ingress rating?

No. The GC documents list IP21 and the Plus documents list IP54. The Plus manual and the GC documents both list a 3-year warranty only when used indoors.

Do the documents list the same default charge voltage?

The GC documents list a default of 54 V. The Plus manual version 1.0.3 lists 57 V, while the Plus specification sheet version 1.0 lists 40 V.

Did you run both of them?

We reviewed a Chargeverter GC in 2024. Separately, the Chargeverter GC we later had stopped charging and was replaced with a Chargeverter Plus; whether it was the unit shown in the 2024 review is not recorded. We have not tested them side by side.

Is the Chargeverter Plus an upgrade over the GC?

We do not make that claim. The documents list different specifications, set out in the table, and whether either suits a particular system is for the owner and a licensed professional to decide.

Which one should I buy?

We do not make that recommendation. The specifications are listed above from EG4's documents, and the choice depends on your system, which a licensed professional can size.

Sources

• EG4 Chargeverter GC specification sheet, version 1.0 (EG4)
• EG4 Chargeverter GC manual, version 1.1.5 (EG4)
• EG4 Chargeverter Plus specification sheet, version 1.0 (EG4)
• EG4 Chargeverter Plus user manual, version 1.0.3 (EG4)

Videos this comes from

• EG4 Chargeverter - GC review | 48V 100A Battery Charger 5120W Output | 240/120V – Our review of the Chargeverter GC (48 V, 100 A charger)
• EG4 Chargeverter Plus Review (Gen 3) | Install, Test & Off-Grid Charging Explained – Installing and first-charging the Chargeverter Plus that replaced our failed GC
• Old Chargeverter BROKE? New UPGRADE + Safety Tips! #shorts – Short about the failed GC and its replacement

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