SOK SERVER RACK BATTERY
48 Volt (51.2 Nominal) 100Ah, 5.12 kWh
- Now UL1973 Certified by Intertek Laboratories
Maintenance Free Lithium Iron Phosphate (LiFePO4)
Built-In Smart Battery Management System (BMS) with screen Pre-Charge Circuit to Prevent BMS Damage
Detachable cover, user serviceable BMS and cells
Cells rated for 80% Capacity after 4000 Cycles, 100% DOD @1C Rate (Typical capacity at 80% DOD @.5C Rate is over 7000 Cycles)
5 Temperature sensors, protected from low and high temperatures
RS485 & CANBus communication, works with many inverters
5 slot racks are included free with each purchase of 5 batteries, or sold separately if you wanted less batteries.
10 Year Full Warranty & 20 Year Typical Lifespan (electrician does not need to sign to make valid). We service the warranty here on island and stock additional parts. In the event of failure, we want you to be powered up as soon as possible.



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Electrical Properties
Model SK48v100
Nominal Voltage 51.2 (48v Range)
Nominal Capacity 100Ah
Run Time at 20A Load (~1000w) 300 Minutes
Energy 5120Wh
Self Discharge < 3% per month
Max Batteries in Series 1
Max Batteries in Parallel (with BMS communication) 15*
Maximum Terminal Feedthrough Current 350 Amps
Discharge Performance
Max Continuous Discharge Current 100A (1C)
Peak Discharge Current 125A (3 Seconds, automatic shutdown)
Short Circuit Protection 300a, 200µs
BMS Low-Voltage Disconnect 46v
BMS Low-Voltage recover 48v
Charge Performance
Recommended Charge Current 0~63A
Maximum Charge Current (Continuous) 100A
Recommended Charge (Absorption) Voltage 57.6
BMS Cell Protection Voltage 3.7v
BMS Pack Protection Voltage >58.2v
Temperature Performance
Discharge Temperature -4°F – 140°F
Charge Temperature 32°F – 113°F
Storage Temperature 23°F – 95°F
Low Temperature Charge Protection Yes
Internal Temperature Sensors 4 Cell Sensors, 1 BMS Sensor, 1 Ambient Air Sensor
Physical Properties
Case Material Powder-Coated Steel
Rack Mountable Yes, 4U
Dimensions
Width: 17.5in (Without ears – Fits standard 18″ rack with ears installed)
Height: 7in (4 rack units)
Depth: 18in + 1 1/4″ for handles / terminals
Unit Weight 99.2Lbs
Weather Rating IP20
Third Party Testing
Certified and confirm to UL1973 StandardsNow that UL1973 testing has been completed, we are proceeding with UL9540 & 9540A testing. The time for completion is not currently known, but is targeted for early 2023.
Shipping Classification UN3480, Class 9, MSDS
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Pick up at our Big Island location or we can deliver to you on island for a fuel fee.
Ship to other Islands for a packing and handling fee of $75 + customer pays on delivery (POD) with Young Bothers at pick up.
Lithium Ion Batteries are Hazmat, and need to be packaged and shipped appropriately.
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Weight 99.2Lbs
DimensionsWidth: 17.5in (Without ears – Fits standard 18″ rack with ears installed)
Height: 7in (4 rack units)
Depth: 18in + 1 1/4″ for handles / terminals
SOK 5 slot SERVER RACK
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Pick up at our Big Island location, or we can deliver to you on island for a fuel fee.
We can ship to other islands.
Free with 5 SOK 48v 100aH Battery purchase while supplies last.
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Weight: 48 lbs
Dimensions (WxDxH, Inches): 20″ x 19″ ⨉ 46 1/8″
Special Promotion! Each purchase of a group of 5 SK48v100 batteries automatically gets the rack for FREE! Only purchase from this listing if you are buying less than 5 batteries.
Securely holds 5 SOK SK48v100 batteries
Ships disassembled, however, an easy assembly with just a few screws
Does not include the square nuts and screws to secure the batteries – they are shipped in the box with the SOK SK48v100 batteries.
Holes in the bottom of each corner for easy anchoring to a floor
NOTE: Due to limited supply and shipping complications, this is only available to customers with correlating SOK 48V battery orders
BATTERIES SHOWN IN PICTURE NOT INCLUDED.
Battery Accessories
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Inverter Communications Cables
Custom cable for closed-loop Inverter to battery communication.
6 Ft Length CAT 5e cable. Custom pinouts, select a style to see more. (MPP, EG4, Sungold / Victron / Growatt)
For Sol-Ark & SMA inverters, use standard cables.
Only 1 cable needed per system. Connect battery #1 (Master) to the inverter.
Multiple batteries connect together via RS485B/RS485C ports with standard cables.
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RJ45/CAT5e Patch Cables
High-precision, CAT5e, ANSI/TIA-568-C.2 Compliant, ETL Verified, Ethernet LAN Patch Cable, pre-terminated with Cat 5e RJ45 connectors
UTP 24AWG stranded conductors for flexibility and minimum crosstalk, 50 micron gold-plated contacts for high-speed data transfer and corrosion resistance
Molded, snag-less strain relief boots for long lasting, durable connections
Compatible with SOK 48v100Ah Server Rack Battery & Victron VE.BUS / VE.CAN products
Lengths : 1ft, 3ft, 6ft
- 1ft most commonly used between rack mount batteries -
RS232 Cable | For SOK 48v 100ah Server-Rack Battery
Allows PC monitoring & programming of up to 15 batteries simultaneously.
Custom cable only compatible with SOK batteries
PC Communication documentation here:
PC Communication -
Silicone Battery Terminal Covers
Fits 1/0AWG – 4/0AWG Battery Cables
Flexible Silicone Rubber – easily slides over even the largest 4/0 lugs.
Protects connections from accidental contact and environmental exposure.
Set of 2 black and 2 red covers
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2/0 AWG | Red + Black | Pure Copper Battery/Inverter Cables 9in
Perfect between SOK server rack batteries.
Manufactured with ultra-flexible Power-Flex Cable
100% fine stranded PURE COPPER cable for high amperage applications
Copper cable lugs are tinned coated and utilize a closed end design for corrosion protection.
Polyolefin glue-lined heat shrink tubing applied to form a protective seal.
Includes one black cable and one red cable. Simply select cable length and cable lug mounting hole diameter for cable ends.
Cables are USA-made in house utilizing a 6-point, 16 ton hydraulic press.
Recommended for the following inverter sizes:
12 Volt System: 2000w ~ 2500w
24 Volt System: 4000w ~ 5000w
48 Volt System: 8000w ~ 10000w