The SunGold Power 48V 100AH Self-Heating Server Rack Lithium Battery Keeps 48V Storage Working in Cold Climates
The SunGold Power 48V 100AH Lithium Battery Self-Heating Server Rack (SGH48100T) is a 51.2V, 5.12kWh LiFePO4 battery built for energy storage in low-temperature locations. An integrated heating system turns on automatically when the battery is between -13°F and 41°F and warms it to 53.6°F so it can charge normally.
The 3U rack-mount module is compact and maintenance-free, communicates with compatible inverters over RS485 or CAN, and can be connected in parallel up to 32 units. SunGold lists UL1973 certification and a rapid shutdown function for the North American market.
SunGold Power 48V 100AH Lithium Battery Self-Heating Server Rack Features
Automatic Self-Heating
When charging current is present and the battery is between -13°F and 41°F, the heater activates. Below 14°F, charging current goes to the heater first until the battery warms above 14°F. The heater shuts off at 53.6°F, and SunGold notes heating does not affect state of charge.
5.12kWh Nominal, 4.92kWh Usable
Each module stores 5.12kWh nominal at 51.2V and 100Ah, with 4.92kWh usable at 0.5C.
70A Max Charge, 100A Max Discharge
Standard charge and discharge current is 50A or less, with up to 70A of charging and 100A of continuous discharge (at 86°F or below). Peak discharge is 101 to 119A for 5 minutes or 120 to 200A for 15 seconds.
Parallel Up to 32 Units
Build a bank of up to 32 modules for larger systems. Battery-to-battery communication cables are included.
Communication and Safety
An LED display and RS485 and CAN ports support inverter communication and BMS firmware upgrades. SunGold lists UL1973 certification and a rapid shutdown function.
Real-World Applications
Cold climate homes. Install storage in garages, sheds, or cabins that drop below freezing.
Off-grid cabins. Keep a 48V bank charging through winter.
Home backup. Store solar energy for outages in any season.
Small commercial storage. Scale up to 32 modules.
How It Compares to Common Alternatives
Versus the SG48100P. The SG48100P lacks self-heating. Choose the SGH48100T for unheated installations.
Versus heating pads or enclosures. Built-in heating is controlled by the battery itself, without extra equipment.
Versus lead acid in the cold. LiFePO4 with heating delivers more usable capacity and far longer life.
Is This Battery the Right Fit
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System voltage. 48V systems (51.2V nominal).
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Temperature. Charges from 14°F to 122°F, discharges from -4°F to 122°F, with heating for colder conditions.
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Installation. 19.3 x 17.3 x 5.2 inches and about 103 pounds per module.
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Environment. Keep away from direct sunlight, rain, and snow.
This may be a good fit if
- Your batteries will be in an unheated space
- You want rack-mount 48V storage
- You need UL1973-listed batteries
- You plan to expand later
Common Questions
When Does the Heater Turn On?
When charging current is present and the battery is between -13°F and 41°F. It turns off at 53.6°F.
Does Heating Drain the Battery?
SunGold notes the heating system does not affect the battery's state of charge.
What Is the Charge Voltage?
56.0V charge and 54.6V float.
What Is the Best Operating Temperature?
SunGold lists an optimal range of 59°F to 86°F. Frequent exposure to temperature extremes can reduce performance and cycle life, so heated or insulated spaces are still best when available.
What Happens if the Battery Is Over-Discharged?
SunGold advises recharging within 24 hours from solar, the grid, or a generator to avoid damage.
What's Included
- 1, 2, or 4 x SunGold Power SGH48100T Self-Heating Batteries, per selected option
- Per battery: rack mounting kit (M6 float nuts, combination screws, M8 hexagon bolts)
- Per battery: power cables, grounding cable, and battery-to-battery communication cable
- 1 x Manual
All-Season 48V Storage
The SunGold Power 48V 100AH Lithium Battery Self-Heating Server Rack keeps 5.12kWh of storage ready to charge even in freezing conditions. At Outbound Power, we help customers plan battery systems for every climate. If you have questions, our team is happy to help.
SunGold Power 48V 100AH Lithium Battery Specifications
|
| Model |
SGH48100T |
| Chemistry |
Lithium iron phosphate (LiFePO4) |
| Rated Voltage |
51.2V |
| Voltage Range |
44.8V to 57.6V |
| Charge Voltage |
56.0V |
| Float Charge Voltage |
54.6V |
| Nominal Capacity |
100Ah (0.5C) |
| Nominal Energy |
5.12kWh (0.5C) |
| Usable Energy |
4.92kWh (0.5C) |
| Standard Charge/Discharge Current |
50A or less |
| Max Charge Current |
70A |
| Max Discharge Current |
100A (at 86°F or below) |
| Peak Discharge Current |
101 to 119A for 5 minutes, 120 to 200A for 15 seconds |
| Communication |
RS485, CAN |
| Max Parallel |
32 units |
| Charge Temperature |
14°F to 122°F |
| Discharge Temperature |
-4°F to 122°F |
| Heating Activation |
-13°F to 41°F with charging current present |
| Heating Stops |
53.6°F |
| Recommended Environment |
59°F to 95°F, 5% to 75% RH |
| Dimensions |
19.3 x 17.3 x 5.2 in (490 x 441 x 133 mm) |
| Weight |
About 103 lb (47 kg) |
| Certification |
UL1973 |
SunGold Power 48V 100AH Lithium Battery Manual
