SunGold Power 51.2V 100AH Server Rack LiFePO4 Lithium Battery

The SunGold Power 51.2V 100AH Server Rack LiFePO4 Lithium Battery Adds 5.12kWh of UL1973 and UL9540A Certified Storage to Any Rack-Based 48V System

The SunGold Power 51.2V 100AH Server Rack LiFePO4 Lithium Battery (model SG48100P) is a 3U rack-mount battery that stores 5.12kWh. It is UL1973 and UL9540A certified, has an LCD screen on the front panel, and ships with its output cables and rack screws, ready for installation.

It is built for installers and homeowners who want to stack batteries in a rack or cabinet. Use it for home solar storage, backup power, or small commercial and industrial systems. Up to 63 batteries can run in parallel, so one rack can grow into a large storage bank.

SunGold Power 51.2V 100AH Server Rack LiFePO4 Lithium Battery Features

UL1973 and UL9540A Certified

The SG48100P carries UL1973 and UL9540A certifications. Its plastic parts are rated UL94 V-0 for flammability, and it uses lithium iron phosphate chemistry.

3U Rack-Mount Format

The black steel pack is 3U tall with front mounting ears and handles. Four M6 x 16 hanging ear screws come in the box to secure it in a rack.

7000+ Cycles and a 15-Year Design Life

SunGold rates the pack for at least 7000 cycles at 80% depth of discharge, with a 15-year design life and a 10-year warranty.

Front-Panel LCD and Status Lights

An English smart display shows battery information. Six green SOC lights show the charge level, a green RUN light shows normal operation, and a red ALM light comes on for faults.

Expand to 63 Batteries

The modular design supports up to 63 batteries in parallel for 322.56kWh. A 6-bit DIP switch on each pack sets its address in the bank.

Wide Inverter Compatibility

RS232, RS485 and CAN ports support multiple protocols. SunGold lists compatibility with most inverters on the market, such as Growatt, Deye, SunGoldPower, Luxpower, Victron Energy, Schneider, Phocos and SMK.

Dry Contact Alarm Outputs

Two dry contacts can signal other equipment. One closes during fault protection, and the other closes as a low battery alarm when SOC drops below 5%.

Real-World Applications

Home solar storage. Store solar energy for evening use and raise your self-consumption.

Battery backup. Keep critical loads running during outages with a compatible 48V inverter.

Equipment rooms and cabinets. Stack several 3U packs in one rack to keep a large bank organized and easy to service.

Small commercial and industrial systems. Scale up to 63 packs as energy needs grow.

How It Compares to Common Alternatives

Versus a wall-mounted battery. A wall-mounted battery needs a section of wall for each unit. Rack batteries stack vertically in one footprint, which makes larger banks easier to fit.

Versus one large battery. Building a bank from 5.12kWh packs lets you start small and add capacity in steps, up to 63 units.

Versus a lead-acid battery bank. This battery adds a built-in BMS, inverter communication and an LCD screen, with at least 7000 rated cycles.

Is This Server Rack Battery the Right Fit

• Inverter. Requires a 48V inverter or charger. Battery communication needs a compatible CAN or RS485 protocol.
• Rack. You need a rack or cabinet that fits a 3U pack. A rack is not included.
• Location. The battery box is IP20 rated. Keep it out of rain and direct sunlight.
• Weight. Around 93lb per battery.
• Batteries. Do not mix new and old batteries, or other battery types, in the same bank.

This may be a good fit if

• You want UL1973 and UL9540A certification
• You are building a rack-mounted battery bank
• You use a 48V hybrid or off-grid inverter
• You want alarm signals through dry contacts

Common Questions

How Is the Battery Mounted in a Rack?

The pack has mounting ears on the front panel. Slide it into a rack or cabinet and secure it with the four M6 x 16 hanging ear screws that come in the box.

Can the SG48100P Be Installed Outdoors?

No. The battery box is IP20 rated. SunGold prohibits rain and direct sunlight, so install it indoors, away from heat sources. The working temperature range is 32°F to 113°F for charging and -4°F to 140°F for discharging.

How Do Multiple Batteries Share Information?

Each pack gets a unique address on its DIP switch. The packs connect to each other with RS485 cascade communication cables, and one comes in the box with each battery.

What Does the Reset Button Do?

If the battery is in an abnormal state or has gone to sleep, the reset button restarts and wakes it.

What's Included

1 x Battery

• 1 x SG48100P 5.12kWh LiFePO4 Battery
• 1 x Set of Positive and Negative Output Cables (Red and Black, 0.5m)
• 1 x RS485 Cascade Communication Cable (0.5m)
• 4 x M6 x 16 Hanging Ear Screws
• 1 x Dry Contact Terminal
• 1 x Product Manual
• 1 x Certificate

2 x Batteries

• 2 x SG48100P 5.12kWh LiFePO4 Batteries, each with the full kit listed above

4 x Batteries

• 4 x SG48100P 5.12kWh LiFePO4 Batteries, each with the full kit listed above

Certified Rack Storage That Scales

The SunGold Power 51.2V 100AH Server Rack LiFePO4 Lithium Battery gives a 48V system 5.12kWh of UL1973 and UL9540A certified storage in a 3U pack, with room to grow to 63 batteries. At Outbound Power, we help customers plan rack-mounted battery banks and match them to inverters. If you have questions, our team is happy to help.

SunGold Power SG48100P Manual

SunGold Power SG48100P Data Sheet

SunGold Power SG48100P UL 1973 Certificate