EG4 Chargeverter GC — 48V 100A Battery Charger (5120W)
Never get stranded with dead batteries again. The EG4 Chargeverter GC is a 48V, 100A battery charger that pulls up to 5120W straight from a generator or wall outlet — topping up your bank fast, even when your generator's power is too "dirty" for a normal inverter.
Why You'll Love The EG4 Chargeverter GC
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Charge fast, from almost any source. At a full 100A and 5120W, the EG4 Chargeverter GC can put roughly 5kWh back into your battery bank in about an hour — straight from the grid or a generator.
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Finally, a generator that just works. It thrives on the "dirty power" that makes ordinary inverters choke, so you can run a budget or older generator without overloads, error codes, or damage.
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Set it and forget it. Wire up the auto-generator-start dry contacts and it will fire up your generator, charge to your target, and shut it back down — all on preset voltage or state-of-charge thresholds.
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Dial in the perfect charge. Adjustable current (0-100A) and voltage (43-57V), plus a built-in breaker, let you tune charging to your exact battery bank, safely.
Your life, with the EG4 Chargeverter GC
You know the drill. A storm rolls in, the sun disappears for days, and your battery bank slowly drains. You fire up the generator — and your inverter throws a fit over the rough power, refusing to switch over while you fiddle with the throttle in the rain.
The EG4 Chargeverter GC ends that headache for good. Plug it straight into your generator and it converts that AC power directly into a fast, clean charge for your 48V bank — no inverter in the loop, no compatibility drama. Even a cheap, high-THD generator that a normal inverter would reject charges your batteries just fine.
And it's quick. With a full 100A and 5120W on tap, it can put roughly 5kWh back into your bank in about an hour, so you spend less on fuel and less time waiting around.
Wire up the auto-generator-start contacts and it runs itself. When your batteries dip to your set point, it starts the generator; when they're topped up, it shuts it down. Add the RS485 link to your battery and it charges by real state of charge, not guesswork.
Whether you're off-grid full-time, riding out a long outage, or just want a reliable backup plan when solar comes up short, this is the little box that makes sure you're never left in the dark.
The EG4 Chargeverter GC in a nutshell:
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48V, 100A, 5120W output — refill roughly 5kWh in about an hour.
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Handles "dirty" generator power — charge from budget or older generators an inverter would reject.
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Auto generator start plus RS485 comms — hands-free charging by voltage or state of charge.
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Adjustable current and voltage, built-in breaker — tune the charge to your bank, safely.
EG4 Chargeverter GC specifications
Charger Output
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Battery voltage: 48VDC nominal
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Charge current (adjustable): 0-100A @240VAC (0-45A @120VAC, 0-50A @208VAC)
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Charge voltage (adjustable): 43-57VDC (default 54VDC)
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Max output: 5120W @240VAC (3050W @120VAC)
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Max efficiency: 94% @240VAC (92% @120VAC)
AC Input
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Input voltage range: 90-264VAC (120/208/240VAC capable)
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AC frequency: 50-60Hz
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Max input current: 26A @240VAC, 28A @120VAC
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Idle consumption: ~10W
Control & Communication
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Communication: RS485 port (RJ45) for closed-loop, SOC-based charging
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Auto generator start: dry contacts (NO / NC / C, RJ11)
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Built-in breaker: yes
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Generator-optimized: accepts high-THD "dirty" power
Physical & Environment
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Dimensions (H × W × D): 5 × 13.2 × 4.9 in (127 × 335 × 124 mm)
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Weight: 13 lbs (5.9 kg)
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Enclosure rating: IP21 (indoor)
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Operating temp: 14–131°F (-10–55°C)
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Operating altitude: up to 4,921 ft
Warranty & Brand
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Warranty: 3 years (indoor use)
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Model: CU-48|5000-GD
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Brand: EG4
Let the experts help you find your perfect EG4 Chargeverter GC setup
Not sure whether the EG4 Chargeverter GC fits your battery bank, your generator, or your inverter? That's exactly what we're here for. Our team works with these systems every day, and we'll help you set up your charging right the first time — no guesswork.
Chat via email — support@kratopower.com
Chat on the phone — +1 888-855-7286
EG4 Chargeverter GC documents and materials
Everything you need to spec, install, and register your EG4 Chargeverter GC:
