-
Local Free & Fast Delivery
-
24/7 Online Support
-
30-Day Return & Refund
-
5-Year Free Wararnty
- Best Seller
- Smart Bluetooth
- Multi-Protocol
- Low-temp Cutoff
- Active Balancing
Humsienk 48V 100Ah 3U Server Rack Bluetooth LiFePO4 Battery | 3A Active Balancing & CAN/RS485/RS232 Protocols
Lock in the lowest price of 2026! Upgrade your home solar storage or off-grid power setup before prices return to regular retail.
- Standard 3U Rack‑Mount Design – Compact footprint of 17.32 × 19.69 × 5.24 inches and lightweight at just 96.45 lbs – 60% lighter and 33% smaller than four 12V 100Ah lead‑acid batteries, saving space and simplifying installation.
- 3A Active Balancing – Balances 100× faster than conventional passive systems (0.03A), ensuring all cells remain perfectly matched – reducing heat, preventing premature aging, and extending overall pack life.
- Grade A+ Cells – Deliver over 15,000 cycles at 60% DOD and an industry‑leading energy density of 53.08 Wh/lbs – far surpassing ordinary lithium batteries in performance and longevity.
- Intelligent 100A BMS + Dual‑Layer Safety – Provides full protection against over‑charge, over‑discharge, over‑current, short circuits, high temperature, and low temperature, plus a physical ON/OFF switch and automatic overload shut‑off for double peace of mind.
- 5.12kWh Capacity, Scalable Up to 102.4kWh – Supports up to 20 units in parallel (auto‑address and master‑slave identification), making it ideal for home storage, off‑grid systems, server rooms, factories, and more.
- Smart Monitoring & Wide Compatibility – Bluetooth app provides real‑time voltage, current, temperature, and SOC data on your smartphone; supports CAN, RS485, and RS232 protocols for seamless integration with leading inverters (Victron, Deye, Growatt, SMA, PYLONTECH, and more).
- 5‑Year Warranty – Backed by a 5‑year warranty, 24/7 technical support, and international certifications including SDS, UN38.3, FCC, CE, and RoHS – your investment is fully protected.
Hurry! Only--items left in stock!
Special Add-Ons
Humsienk 48V 25A AC-DC LiFePO4 Battery Charger
Humsienk 3U 4-Layer Rack Cabinet
Shop early with total peace of mind! If you purchase any Humsienk product today and the price drops on our official store within 30 days of your purchase, we will gladly refund you the price difference.
- Zero Risk Shopping: Lock in your favorite power setup now before inventory runs out.
- Hassle-Free Price Adjustment: Simply reach out to our customer support team with your order number, and we’ll process your price match refund within 24–48 hours.
- 100% Protection: Valid across all Black Friday & Cyber Monday promotional discounts.
We want you to be completely satisfied with your purchase. HUMSIENK offers a 30-Day Money-Back Guarantee for all orders, allowing you to return or exchange eligible products within 30 days of delivery.
1. Eligibility for Returns
- Timeframe: Return requests must be initiated within 30 days from the date you received your item.
- Item Condition: Items must be in brand-new, unused, and resalable condition, complete with all original packaging, manuals, power cords, and accessories.
- Non-Returnable Items: Custom/special orders, final sale items, or products damaged due to improper installation or misuse are not eligible for non-reason returns.
2. Return Shipping Costs
- Buyer’s Remorse (Change of Mind / Non-Quality Issue): If you are returning an item for personal reasons (e.g., bought by mistake, no longer needed), the customer is responsible for the return shipping fees and any associated LTL freight/restocking charges.
- Defective or Damaged Items: If the product is defective upon arrival or damaged during transit, HUMSIENK will provide a prepaid shipping label and cover all return/exchange costs.
3. How to Initiate a Return
- Contact Support: Email our customer service team at service@humsienk.com with your Order Number, product serial number, and reason for return.
- Receive RMA & Return Address: Our support team will review your request within 24–48 hours and provide Return Merchandise Authorization (RMA) instructions and the local warehouse return address.
- Ship & Track: Package the item securely and share the return tracking number with us.
4. Refund Processing
Once your return is received and inspected at our local US/CA warehouse, your refund will be processed within 3–5 business days. Refunds will be automatically credited to your original payment method.
- Contiguous US Free Shipping: Enjoy 100% Free Shipping on all orders delivered within the contiguous United States — no minimum purchase required.
- Hawaii (HI) Shipping: Deliveries to Hawaii are supported with a flat shipping fee of $1,000 per order.
- Local Warehouse Delivery: All items are stored in and dispatched directly from our local US logistics centers for fast, reliable transit.
- Rapid Order Processing:Standard Express Items: Orders are processed and dispatched within 24 business hours. Tracking numbers are automatically emailed upon shipment.
- In-Stock Standard Express Delivery: Estimated 2–5 Business Days (Contiguous US) (Excludes presale items).
LTL Freight & Heavy Cargo Delivery:
- Applicable Models: 48V 300Ah, 48V 314Ah, and 48V 628Ah battery systems, as well as 48V Bundles/Kits.
- Split Shipment for 48V Bundles: For 48V Bundle systems, items will be dispatched in separate packages via LTL freight—typically Package 1 for the Battery System and Package 2 for Inverters & Accessories. Packages may arrive together or in separate deliveries based on logistics handling.
- Processing & Transit Time: 3–7 Business Days. Please note that LTL shipments require 1–2 business days prior to dispatch for recipient verification, rate finalization, and carrier scheduling. Liftgate service is included.
- Manual Tracking Support: As heavy freight operates outside standard express parcel networks, online auto-tracking may be limited. For real-time status updates on your freight shipment, please contact us at service@humsienk.com.
At Humsienk, we stand behind the quality and performance of our energy storage solutions. We offer flexible warranty coverage based on product category:
- Refurbished / Second-Hand Batteries: 1-Year Limited Warranty
- Accessories & Components: 1-Year Limited Warranty
- Inverters: 2-Year Limited Warranty
- 12V LiFePO4 Batteries (8Ah – 50Ah): 3-Year Limited Warranty
- All Other Battery Systems: 5-Year Limited Warranty
Activate Your Warranty
To ensure full coverage and access fast-track customer support, please register your product serial number via our official Humsienk Warranty Registration Page.
-
Local Free & Fast Delivery
-
24/7 Online Support
-
30-Day Return & Refund
-
5-Year Free Wararnty
See How Humsienk Performs
Real homes, RVs, boats and off-grid setups - tested by owners and creators.
Mechanical | Shell Type Metal | Size 440 x 500 x 133 mm / 17.32 x 19.69 x 5.24 in |
Weight 43.75+0.5kg/96.45 +1.10 lb | Nominal Voltage 51.2V | |
Nominal Capacity 100Ah | Energy 5120Wh | |
Electrical Characteristics | Terminal M8 | Cycle Life 6,000@DOD80% |
Months Self Discharge s3%/Month | Efficiency Of Charge 100%@0.2C | |
Efficiency Of Discharge 96~99%@0.5C | Charge Voltage 57.6V±0.2V | |
Standard Charge/Discharge | Charge Mode CC/CV | Charge Recommended Current 20A |
Max. Continuous Charge Current 100A | Discharge Recommended Current 50A | |
Max. Continuous Discharge Current 100A | Discharge Cut-Off Voltage 40V | |
Charge Temperature 32°F~131°F/0℃C~55°C | Discharge Temperature -4°F~149°F/-20°C~65°C | |
Environmental | Storage Temperature -4°F~113°F/-20°C~45°C | Ingress Protection Rating IP65 |
Which Home Storage Battery Fits Your Setup?
| Product |
48V 100AhServer Rack |
48V 100AhWall-mounted |
48V 100AhGolf Cart |
| Capacity | 5.12kWh | 5.12kWh | 5.12kWh |
| Dimensions | 17.32 x 5.24 x 19.69 in | 21.65 × 7.28 × 19.09 in | 23.35 × 10.47 × 8.54 in |
| Weight | 96.45 lbs | 104.05 lbs | 90.39 lbs |
| BMS Current | 100A | 100A | 200A |
| Bluetooth | |||
| Max Power | 5120W | 5120W | 5120W |
| IP Rating | IP54 | IP54 | IP65 |
| Best Application | Home Storage, Off-grid, DIY Solar Power, Data Base | Home Storage, Off-grid, DIY Solar Power, Data Base | Golf Cart (Club Car, E-Z-GO, Yamaha, ICON & Star EV) |
| Price (USD) | $799.99 USD | $999.99 USD | $749.99 USD |
Customers praised this 48V server rack battery for excellent build quality and exceptional value. Many said it's "great quality" and works well in off-grid systems. The Bluetooth app and active balancing received positive mentions. Some noted issues: missing assembly instructions, short cables, weak Bluetooth range, and concerns about terminal screw design. Cell balancing needed improvement initially.
Muy bueno funcionando en mi casa hace 5 meses y todo perfecto
very well package Well built
Es una buena compra tremenda calidad necesito comprar la batería de 48 v de la misma marca y no e podido pero poco a poco la consigo
Product is as advertised. I’ve only self checked the batteries for now as I building complete 8KW off grid system and not done yet.
Been working great. I have 2 and plan on getting 2 more
Been working great
I a. Impressed with these batteries. Great quality. And the company is amazing. Customer support is responsive and accommodating. Highly recommend. I will build out my entire battery bank with these.
I purchased two batteries,,the package is good the only thing is the terminal short out my battery . The wire groundout on the 4 screw that hold the terminal down
I am really impressed with the quality of the Humsienk 48v 100Ah 3UServer Rack Battery.
I have installed it on a Dolly or Hand Truck. I also posted a video on my Youtube channel. http://www.youtube.com/@RednekGeeks
I have only been workingthis battery for a few days. Seems to work as advertised. Packaging was good and it arrived quickly in fine condition. My only complaint
Is that the included wires were a bit on the short side.
I plan on expanding my system and will be ordering more soon.
Works great with my xw pro 6848 inverter charger.
Very nice quality, wish had a few more, nice price, fixed income trying to lower electric bill
So far the batteries have been holding up. My house has been off the grid for a few weeks now. I bought 2 batteries that are connected in parallel now. However, I noticed that the voltage vs state of charge doesn't match up for both batteries.
Explanation: Battery A is at 94% with a voltage of 53V and battery B is at 84% with a voltage of 53V. So the voltages of the batteries are normally close but the battery percentage is different. I am not sure if that will eventually cause any issues
Overall, I'm impressed with the build quality/value when compared with other server rack batteries. There are a few things that can be improved, but it integrates well with my other batteries. The raised screw heads on the terminals should be re-designed so that they are recessed, and can't be inadvertently contacted, potentially causing a short.
On my initial charge, the cell voltages differed by over 200mv at the top. I did a capacity test from the initial charge & got 100.365 ah, but I had it set to cut off at 44.5v, instead of letting the BMS take it out. On the subsequent charge, cell differential was over 250mv at the top. I let it sit overnight, so the active balancer had some time to work. Next morning I took the cells up to 3.6v+ with a bench power supply set at around .25a. All cells were within 6mv, which is impressive.
I've ditched the factory app for monitoring in favor of the TDT "BMS meta" app, which allows control of more of the battery parameters.
At this price point, it's a winner - just change those screw heads on the terminals!
Humsienk 48V 8kW Hybrid Inverter | 120/240V Split-Phase, 10ms UPS, Dual MPPT
8k Humsienk split phase inverter with 4 Humsienk 48 volt Batteries and 14ea. 200watt bifacial solar panels. They run 3 Large freezers, 2 refrigerators and my washer and gas dryer, and gas furnace and lights. Thru a ten breaker transfer switch. I can be on Grid or off Grid with Humsienk.
Everything worked as promised. It has good features. I would almost say it's excellent for a budget brand battery.
fue muy rápido la entrega
I like the cabinet. It seems well made. While it is not terribly confusing to figure it out if you study the images well, I did not find an instruction manual for assembly anywhere (online or in the box) and while I am near certain I assembled it correctly, it does seem like I have two few machine screws and too many corner brackets. Again, there was not ANY instructions telling me one way or the other included, but it is a nice product.
Todo excelente estoy muy contento, nada más q una de los dos baterías no traía el cable de Ethernet 1pc.
El paquete llegó en excelentes condiciones además bien protegido
Works perfectly, it's quiet and easy to set up, also the info on the screen is just what I want to know.
