Epoch Batteries
Epoch Batteries 48V 100Ah Self-Heating LiFePO4 Rack Battery
Epoch Batteries 48V 100Ah Self-Heating LiFePO4 Rack Battery
- Regular price
- Price: $1,499.00
- Regular price
- List Price:
- Sale price
- Price: $1,499.00
- Unit price
- per
Couldn't load pickup availability
PRODUCT DESCRIPTION
- 🇺🇸Free ShippingContiguous 48 states
- 🛡️11-Year Battery Warranty3 years free replacement
- 🔗Closed-Loop CommsCAN & RS485, 20+ inverter brands
- 🔥Self-HeatingCharges from -25°C with heat
- 🗄️3U, 19" RackUp to 32 in parallel
- 📞Real Human SupportSizing & setup questions
5.12kWh of heated 48V storage in a 3U rack module that talks to your inverter. The Epoch 48V 100Ah Self-Heating Server Rack Battery (SR48100H) stores 5,120Wh at 51.2V in a metal 3U chassis that fits a standard 19" rack, or mounts on a wall, floor stand or stack with Epoch's kits. Over CAN or RS485 it shares state of charge, alarms and charge limits with Victron, Sol-Ark, SMA, Schneider, Growatt, LuxPower and many other 48V inverters, and its built-in heater lets it take a charge in cold garages and utility rooms. Add batteries in parallel as your needs grow, up to 32 in one bank.
Cycle rating at 0.2C, 90% depth of discharge and 25°C. Epoch recommends 50A or less charge and discharge per battery for everyday use.
🔧 Will It Fit & Work for You?
A 3U, 19" rack-mount 48V module for indoor solar and backup systems (stack, wall and floor kits sold separately). Popular uses include:
- Home solar & hybrid inverter systems
- Off-grid homes & cabins
- Whole-home & critical-load backup
- 48V Victron systems
- Shops, garages & outbuildings
- Server rack & cabinet installs
- Large banks (up to 32 in parallel)
- You have 3U of rack space (about 5.25") in a standard 19" rack, with a tray to carry it. The body is 17.4" W × 18.1" D × 5.2" H (442 × 460 × 133.5 mm); it measures 19.0" across the rack ears and 20.1" deep with the front handles.
- Your rack, tray or wall can carry 101 lb (46 kg) per battery. Epoch requires a wall holder rated for at least 110 lb per battery, and the battery must sit upright.
- Your system is 48V nominal. This battery is parallel only; never wire it in series.
- Your inverter is on Epoch's list: CAN for Victron, SMA, Studer Innotec, Sofar, Sol-Ark, Solis, Goodwe, Deye, Growatt, SAJ, LuxPower, Megarevo, INVT, Sermatec, TBB, MUST, Sunsynk and Schneider, or RS485 for Voltronic, RCT, MPP Solar, Alpha-Outback and Phocos. For anything else, contact us before you order.
- You plan for cables and hardware: only the battery and manual are in the box. Power cables and terminals are rated 125A max (100A continuous suggested), so add enough cable pairs for your bank's current, plus a DC-rated fuse or breaker near the positive side.
- It goes indoors, in a dry spot. The enclosure is IP20, not water resistant.
Why Choose the SR48100H
Closed-Loop With Your Inverter
The BMS shares state of charge, alarms and charge/discharge limits over CAN or RS485, so your inverter charges by what the battery asks for. Pick the protocol with DIP switches 6 and 7 on the master battery.
Built-In Heating
Between -25°C and 5°C, the heater turns on when at least 8A of charge current comes in. Charging starts once the cells reach -10°C, and heating stops at 12°C (54°F). Heater power comes from the charge source.
Rack, Wall, Floor or Stack
Bolt it into a 19" rack or cabinet with M6 cage nuts, or remove the ears and use Epoch's wall, floor or stack kit (up to 4 per stack).
Grows to 163.84kWh
Up to 32 batteries in parallel (3,200Ah) with automatic addressing. Link OUT on one battery goes to Link IN on the next, and only the master talks to the inverter.
96% Usable Energy
4.92kWh usable of the 5.12kWh rating at 0.2C, with 6,000+ cycles to 60% capacity at 90% depth of discharge.
UL 1973 Listed
Pack-level UL 1973 listing through ETL, UN 38.3 transport tested and a BMS with pre-charge, reverse polarity, short circuit and temperature protection. UL 9540 is pending.
📦 What's in the Box
-
48V 100Ah Self-Heating Server Rack Battery (SR48100H)3U, 19" rack ears & front handles, CAN/RS485
- User ManualWiring, DIP switch settings & inverter setup
Lithium vs. a 48V Lead-Acid Bank
| Epoch SR48100H | Typical Lead-Acid | |
|---|---|---|
| Batteries for ~5 kWh at 48V | 1 | Several, wired in series |
| Usable energy | 4.92 kWh (96%) | About half, to protect battery life |
| Cycle life | 6,000+ to 60% capacity | A fraction of that |
| Inverter communication | CAN or RS485, closed loop | No |
| Cold-weather charging | Built-in heater | Slow & inefficient |
| Maintenance | None (no watering or equalizing) | Watering & equalizing for flooded types |
| Warranty | 11-year limited | Usually 1–2 years |
🔌 Charging Made Simple
Up to 70A per Battery
70A max continuous charge per battery (70A × N for a bank), all sources combined. Epoch recommends 50A or less per battery.
Inverter Settings
Absorption 56.0V until current falls to 2A, float 54.6V, re-charge or generator start at 50.0V. Low-voltage cutoff 48.0V (restart 52.0V), low SOC cutoff 4%, force charge enabled.
No Equalization
Use a LiFePO4 profile with equalization disabled. With closed-loop comms the battery sets limits; program the same values as a fallback.
Cold-Weather Charging
Below 5°C, at least 8A of incoming charge current starts the heater. Little or no charge current during warm-up is normal.
🛡️ 11-Year Limited Warranty
Register with Epoch within 90 days of purchase or keep your proof of purchase. Non-transferable. Full terms at epochbatteries.com.
📋 Full Specifications
| Electrical | |
| Chemistry | LiFePO4 |
|---|---|
| Configuration | 16S1P |
| Nominal Voltage | 51.2V |
| Capacity / Energy | 100Ah / 5,120Wh (5.12kWh) |
| Usable Energy | 4.92kWh at 0.2C (96% DoD) |
| Operating Voltage | 48.0V – 56.0V |
| Continuous Discharge | 100A (50A or less recommended) |
| Peak Discharge | 119A up to 5 min; 200A up to 15 sec |
| Continuous Charge | 70A (50A or less recommended) |
| Internal Resistance | ≤30 mΩ (1kHz AC, 50% SOC) |
| Self-Discharge | ≤3% per month, ≤15% per year |
| Cycle Life | 6,000+ cycles (0.2C, 90% DoD, 25°C, to 60% capacity) |
| Parallel / Series | Up to 32 in parallel (3,200Ah, 163.84kWh); series not supported |
| Protection | |
| BMS | Overcharge, over-discharge, over-current, short circuit/reverse polarity, high & low temperature |
| Pre-Charge | Built in |
| Low-Voltage Cutoff | 48.0V (restart 52.0V) |
| Low SOC Cutoff | 4% |
| Physical | |
| Form Factor | 3U, 19" rack (metal chassis, rack ears & front handles) |
| Dimensions (W × D × H) | 17.4" × 18.1" × 5.2" (442 × 460 × 133.5 mm) |
| With Ears & Handles | 19.0" wide (482.6 mm), 20.1" deep (510 mm) |
| Weight | 101 lb (46 kg), without accessories |
| Terminals | 2 positive & 2 negative plug-in power connectors, 125A max each |
| Grounding | Front-panel grounding point |
| Enclosure | IP20 (IEC 60529), indoor use only |
| Mounting | 19" rack or cabinet, stack (max 4), wall or floor kit; upright only |
| Communication | |
| Protocols | CAN & RS485 (RJ45 Link IN / Link OUT) |
| CAN Inverters | Victron, SMA, Studer Innotec, Sofar, Sol-Ark, Solis, Goodwe, Deye, Growatt, SAJ, LuxPower, Megarevo, INVT, Sermatec, TBB, MUST, Sunsynk, Schneider |
| RS485 Inverters | Voltronic, RCT, MPP Solar, Alpha-Outback, Phocos |
| Protocol Select | DIP 6–7 on master; DIP 1 sets RS485 baud (115,200 / 9,600) |
| Dry Contact | Charge & discharge enable outputs; optional rapid-shutdown input |
| Indicators | RUN, ALM, SOC & M/S LEDs; no Bluetooth |
| Cable Lengths | Communication under 15 m (49 ft); power preferably under 10 m (33 ft) |
| Temperature | |
| Charge (with heating) | -25°C to 50°C (-13°F to 122°F) |
| Cell Charge (with comms) | -10°C to 50°C (14°F to 122°F) |
| Discharge (with comms) | -20°C to 50°C (-4°F to 122°F) |
| Heater | On at -25°C to 5°C with ≥8A charge current; off at 12°C (54°F) |
| Optimum Operating | 15°C to 35°C, 5–90% RH non-condensing, below 3,000 m |
| Storage | 15°C to 35°C recommended; 0–30°C up to 6 months; -10–45°C up to 3 months |
| Capacity in Cold | ≥80% at 0°C; ≥60% at -20°C |
| Charger Settings | |
| Bulk / Absorption | 56.0V, until current falls to 2A (0.02C) |
| Float | 54.6V |
| Re-Charge / Generator Start | 50.0V |
| Charge / Discharge Limits | 50A × N rated; 70A × N / 100A × N max |
| Equalization | Disabled |
| Certifications | |
| Battery Pack | UL 1973 (ANSI/CAN/UL 1973:2018), ETL listed |
| UL 9540 | Pending |
| Transport | UN 38.3, Class 9 |
| Ordering | |
| SKU | SR48100H |
📄 Manuals & Downloads
❓ Common Questions
Which inverters does it work with?
Does it come with cables?
Will it fit my rack?
Can I mount it without a rack?
Can I put it in an unheated garage?
What size inverter can one battery run?
Can I wire them in series?
Is it UL listed?
Does it have Bluetooth?
Questions About Your Setup? Ask Us First.
Tell us your inverter, loads and where the rack will go, and we'll help you size the bank, pick the right communication cable and plan the mounting before you order.
LiFePO4 Chemistry
Lithium iron phosphate cells, one of the most stable lithium chemistries available
Built-In Smart BMS
Guards against overcharge, over-discharge, over-current, short circuit & temperature extremes
Zero Maintenance
No watering, no acid, no terminal cleaning
Backed by Epoch
Manufacturer warranty, plus real help from our team at 833-664-7433