EG4 LL-S 48V 100Ah Server Rack Battery — 5.12kWh LiFePO4
Build the battery bank your home deserves — one clean, stackable block at a time. The EG4 LL-S 48V 100Ah Server Rack Battery slots into a standard rack, banks 5.12kWh of dependable LiFePO4 power, and scales all the way to 327.7kWh as your energy needs grow.
Why You'll Love The EG4 LL-S 48V 100Ah Server Rack Battery
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Scales as far as you need. Parallel up to 64 units for a massive 327.7kWh — start with one 5.12kWh block today and grow into a whole-home or off-grid bank on your own schedule.
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Built to outlast the rest. Rated for more than 7,000 deep cycles and a 15-year service life, backed by a 10-year warranty — cycle it every day and it just keeps going.
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Clean, rack-ready install. A standard 19-inch server-rack form factor and an on-board LCD screen make setup tidy and monitoring effortless — no clutter, no guesswork.
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Serious safety, serious peace of mind. E-Stop support, dual on-board fire arrestors, an EMP-hardened design, and UL 1973 / UL 9540A listing protect your power bank from every angle.

Your life, with the EG4 LL-S 48V 100Ah Server Rack Battery
Maybe you're just starting to build your energy independence — one battery now, more when the budget allows. Or maybe you're going all-in on a full off-grid bank. Either way, you want a system that grows with you instead of boxing you in.
That's exactly what the EG4 LL-S 48V 100Ah Server Rack Battery is built for. Slide it into a standard rack, wire it to your inverter, and you've got 5.12kWh of clean, reliable storage ready to go. Need more? Add another, and another — up to 64 in parallel — until your bank is exactly the size you need.
Living with it is refreshingly simple. The on-board LCD screen puts charge, voltage, and status right at eye level, and selectable closed-loop communication lets it talk directly to your EG4, Sol-Ark, Victron, Schneider, or Growatt inverter. No cryptic setup, no compatibility headaches.
And it's built to be trusted. Sixteen UL-listed prismatic cells, dual fire arrestors, E-Stop safety, and an EMP-hardened design make this storage you can count on for the long haul. Rated past 7,000 cycles, it's ready to charge and discharge every single day for well over a decade.
This is how you build real energy security — one dependable block at a time.

The EG4 LL-S 48V 100Ah Server Rack Battery in a nutshell:
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5.12kWh in a standard rack block — clean, modular storage that stacks.
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Scales to 64 units / 327.7kWh — grow from a single battery to a whole-home bank.
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7,000+ cycles, 10-year warranty — daily cycling for well over a decade.
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E-Stop, dual fire arrestors, EMP-hardened, UL-listed — safety you can rely on.
EG4 LL-S 48V 100Ah Server Rack Battery specifications
Energy & Electrical
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Total energy: 5.12kWh
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Nominal voltage: 51.2V (48V system)
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Capacity: 100Ah
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Cells: 16 UL-listed prismatic 3.2V cells
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Chemistry: Lithium Iron Phosphate (LiFePO4)
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Operating efficiency: up to 99%
Power & Output
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Max continuous charge: 100A
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Max continuous discharge: 100A
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Recommended charge/discharge: 50A
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Short-circuit protection: >300A (<0.1ms)
Management & Communication
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BMS: integrated with passive cell balancing
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Display: on-board LCD screen
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Communication: RS485 / CAN (closed-loop, selectable)
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Compatible inverters: EG4, Schneider, Sol-Ark, Victron, Growatt, Luxpower, Deye, Megarevo
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Monitoring: PC software + lifetime firmware updates
Scalability & Safety
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Max units in parallel: 64 (up to 327.7kWh)
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Safety: E-Stop functionality, dual on-board fire arrestors
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Design: EMP-hardened
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Terminal size: M6 (1/4")
Environment
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Charging temp: 32–122°F (0–50°C)
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Discharging temp: -4–131°F (-20–55°C)
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Enclosure rating: IP20 (indoor)
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Operating altitude: up to 16,404 ft
Physical
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Dimensions (H × W × D): 6.1 × 17.4 × 19.3 in (155 × 442 × 490 mm)
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Weight: 99.6 lbs (45.2 kg)
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Form factor: standard 19-inch server rack
Lifecycle & Warranty
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Cycle life: >7,000 cycles @ 80% DoD
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Service life: >15 years
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Certifications: UL1973, UL9540A (ETL)
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Warranty: 10 years
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Brand: EG4
Let the experts help you find your perfect EG4 LL-S 48V 100Ah Server Rack Battery setup
Not sure how many EG4 LL-S 48V 100Ah Server Rack Battery units you need, or which rack and inverter to pair them with? That's exactly what we're here for. Our team works with these systems every day, and we'll help you size your bank right the first time — no guesswork.
Chat via email — support@kratopower.com
Chat on the phone — +1 888-855-7286
EG4 LL-S 48V 100Ah Server Rack Battery documents and materials
Everything you need to spec, install, and register your EG4 LL-S 48V 100Ah Server Rack Battery:
Safety note: The EG4 LL-S 48V 100Ah Server Rack Battery is a high-voltage energy storage product. Everything on this page is provided for general information only and is not professional electrical, installation, or safety advice. Installation should always be carried out by a licensed electrician or qualified solar installer, in line with local codes and the manufacturer's manual. Every home and system is different, so if you're ever in doubt, please consult a qualified professional before purchase or installation. You use this product and the information here at your own risk.
Product Documents