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    GET 5% OFF YOUR FIRST ORDER: Welcome!
    WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothDetailed structure of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothInternal structure of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothSafe 100A BMS of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothBluetooth 5.0 of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothFlexible connection method of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothLow temperature protection of WattCycle 48V 100Ah 3U Server Rack Battery with BluetoothPacking list of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth2 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth3 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth4 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Detailed structure of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Internal structure of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Safe 100A BMS of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Bluetooth 5.0 of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Flexible connection method of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Low temperature protection of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    Packing list of WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    2 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    3 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth
    4 Pcs WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth

    【⛵ Summer Sale, Final Price: €827,19】WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth

    Regular price €879,99 €929,99 | Save €50,00 (5% off)
    /
    Tax included. Fast & Free Shipping

    Estimated dispatch: July 14-18 | Delivery: July 21-31

    Notice

    The circuit breaker in the picture is an American standard switch, and the actual battery has a European standard circuit breaker.

    Key Features
    • ✔ High-performance EV Grade A+ Cells
    • ✔ L444mm x W450mm x H133mm without Handles, L536mm x W501mm x H191mm with Handles, 43,8kg
    • ✔ Triple Communication Mode: CAN/RS232/RS485 Monitoring
    • ✔ 100A BMS, 100A Max. Cont. Dis-/Charge Current
    • ✔ IP20 Waterproof/Dustproof, Support Floor Stand Installation & Wall Installation
    • ✔ Real-Time Monitoring via WattCycle App
    • ✔ Support 16P1S to Achieve Max. 81,92 kWh Energy
    • ✔ Foldable Handle Design

    Notify me when available

    You have already submited form for 1 Pack (Final: €827,19)

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    Services and Benefits

    Free & Fast Shipping

    *Please see our Shipping Policy for more details.


    Hassle-Free 5 + 2 Warranty

    *Please see our Warranty Policy for more details.


    Lifetime Customer Support 24/7

    We're always there for you, feel free to contact us via Email (service@wattcycle.com) or WhatsApp.


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    WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth

    【⛵ Summer Sale, Final Price: €827,19】WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth

    1 Pack (Final: €827,19) - €879,99
    • 1 Pack (Final: €827,19) - €879,99
    • 2 Pack (€819,21/each) - €1.742,99
    • 3 Pack (€810.90/each) - €2.587,99
    • 4 Pack (€802,52/each) - €3.414,99

    【⛵ Summer Sale, Final Price: €827,19】WattCycle 48V 100Ah 3U Server Rack Battery with Bluetooth

    Thanks for choosing WattCycle. At WattCycle, we're committed to your satisfaction with our product(s). We guarantee that all WattCycle products are strictly tested by our quality inspectors before delivery.

    We understand that there may be situations where you need to return or exchange your purchase. The following "Return & Refund Policy" applies to WattCycle products.

    Order Cancellation

    WattCycle accepts order cancellation before the product is shipped or produced. If the order is canceled, you will get a full refund via the original payment method within 10 working days (Due to delays in processing refunds from a bank).

    WattCycle cannot cancel the order if the product has already shipped out.

    Lost / Damaged Products Received

    If the product was not delivered or lost, please immediately contact us. We will inquire about the situation and send you a statement. After you sign and send us the statement, we will re-arrange the shipment of your order.

    If the product you received was damaged, or if you received an incorrect or incomplete product, please immediately contact us with proof of videos or pictures and product serial number (This number is on a sticker on the product, below the barcode.). After providing the above certificates and serial numbers, we will provide you with a solution based on the damaged or missing items.

    30-Days Money-Back Guarantee

    Within 30 days of purchase, if you are unsatisfied with the product and there are no quality issues, you are entitled to a refund upon returning the item in its complete, unused condition with original packaging intact. However, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region. Please contact us to confirm the specific costs..

    If 30 days have passed since the purchase, a full refund cannot be offered.

    Attention: For products that have been used (Unboxing), WattCycle reserves the right to refuse the return.

    Return Shipping Cost

    WattCycle Pays For Return Shipping

    WattCycle will pay for the cost of return shipping if the reason for the return was the result of our error.

    Examples of instances may include:

    Item arrived defective and cannot be fixed with a replacement part.

    We shipped out the wrong item.

    We shipped it to the wrong address.

    We shipped a duplicate order.

    Item malfunctioned during the 30 day returns period. (The customer should install and operate the item properly per the product manual instruction.)

    Attention

    For items that arrive damaged or are defective, the customer MUST provide videos or photos to support the claim that the item arrived damaged or is malfunctioning. If a customer refuses to or fails to provide videos or photos of a claimed malfunctioning/damaged item, this return will be treated as “buyer’s remorse” and the customer is solely responsible for shipping it back. Once we have received the approved returned item, we will review its condition. If the item is found to be defective, we will issue a refund within 3 working days.

    Customer Pays For Return Shipping

    In the case of a return due to customer error, return shipping is the customer’s responsibility and shipping charges are paid by the customer. Fees vary by country, please contact us for specific fees.

    Attention

    Any order offered with special shipping charges is subject to a deduction from our actual outbound shipping costs.

    After the 30-day returns period, customers may use the WattCycle Warranty Policy for repairs if the item is faulty or malfunctioning. Please refer to the WattCycle Warranty Policy for details.

    Return Item & Address

    After confirming with our customer service team that a return is possible, we will provide you with a return solution based on your order's fulfillment warehouse.

    If your order was shipped from a German warehouse, we are unable to provide a return label. You will need to contact our customer service team to obtain the return address and arrange the return yourself.

    If your order was originally shipped from a Polish warehouse, we will provide you with a return label. You simply need to take the product with the return label attached to a courier station to ship it back.

    Return Address: Xixi, Generała Mikołaja Bołtucia 10, Grodzisk Mazowiecki, 05-827, Poland

    Refund

    For non-quality-related issues and unopened packages, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region.

    For quality-related issues reported more than 30 days after the purchase date, WattCycle will provide a partial refund based on the product's usage condition.

    Refund Timeline: Once the product is returned to the WattCycle warehouse, WattCycle will process the refund within 7 business days and send you a refund confirmation notification.

    Refund Method: The refund will be issued to your original payment method and account.

    Attention

    If you do not receive the refund within 10 business days, please contact us, and we will assist you in checking the refund status.

    Disclaimer

    WattCycle does not offer refunds for the following cases:

    Discounted or promotional items.

    WattCycle products purchased through other entities (e.g., distributors or retail partners).

    Returns from a country/region different from the original shipping address of the order. If the return address differs from the original shipping location, resulting in shipping costs exceeding the initial fees, the user will be responsible for covering the additional shipping fees.

    Products showing signs of wear, use, or alterations from their original condition.

    Products damaged or lost during the return process.

    Changes to This Policy

    We reserve the right to modify this Return & Refund Policy at any time. We will post any changes to this policy on our website. We appreciate your support! If you have any questions about our shipping policy, please feel free to contact us.

    FREQUENTLY BOUGHT TOGETHER

    €45,99
    €35,99
    €35,99
    €49,99

    TOTAL: €167,96

    WattCycle 48V(51.2V) 100Ah 3U-sized Server Rack Battery

    WattCycle is committed to continuous innovation of LiFePO4 batteries and provides a variety of energy storage solutions for different application scenarios. This 48V 100Ah battery is equipped with 3 communication interfaces(CAN/RS232/RS485), LED indicators, EV Grade A+ cells, circuit breaker, foldable handles and other useful features.

    Easily Adjust The Battery with Foldable Handles

    Monitor, Control, and Optimize with WattCycle App

    It's very easy and user friendly to connect your Bluetooth battery with WattCycle App: download the WattCycle App, enable your location and search for your Bluetooth battery, and select the battery on the App. There are two ways to download the WattCycle app. One is to scan the QR code, and the other one is to search for WattCycle on Google Play or the Apple Store.

    PRODUCT DESCRIPTION

    Special Server Rack 3U Size: Measuring L444mm x W450mm x H133mm(without handles) and weighing 43.8kg, it's perfectly suitable for server racks or solar energy storage cabinets.

    High-quality EV Grade A+ Cells: Made of high-performance EV Grade A+ Cells, this WattCycle 48V 100Ah 3U Server Rack Battery can support at least 5000 cycle times at 100% DoD(Depth of Discharge).

    Triple Communication Mode Meet Various Needs: Designed with CAN/RS232/RS485, it supports seamless communication with the solar inverters. It's convenient to monitor battery current, voltage, power and working temperatures via Bluetooth 5.0 at the WattCycle App.

    Expandable Battery Connection: Supporting 16P1S of 16 batteries in parallel and 1 battery in series, it can achieve a massive energy of Max. 81,92 kWh energy. Reliable energy source for your off-grid living and UPS system.

    Foldable Handles: A foldable handle design maximizes cabinet space and simplifies installation. It is easy to maneuver—no heavy-lifting teams are required.

    Wide Application: It can provide uninterruptible power supply (UPS) for critical servers and network infrastructure, store solar/wind energy for homes, farms, or off-grid living, and power robotics, manufacturing equipment, or emergency lighting.

    TECH SPECIFICATIONS

    • Technology LiFePO4 Technology
    • Nominal Voltage 51.2V
    • Nominal/Usable Capacity 100Ah
    • Max. Continuous Output Power 5120W
    • Energy 5120Wh
    • Battery Dimensions L444mm x W450mm x H133mm
    • Weight 43.8 kg
    • Standard Charging Voltage 57.6V ± 0.8V
    • Float Voltage 55.2V
    • Discharge Cut-off Voltage 40V
    • BMS 100A
    • Standard Continuous Charge Current 50A
    • Max. Continuous Charge Current 100A
    • Max. Continuous Discharge Current 100A
    • Warranty 5 Years
    • Waterproof Rating IP20
    • Casing Material Cold Rolled Steel
    • Series & Parallel Configurations Max 16 batteries in Parallel
    • Short Circuit Protection Yes
    • Release Condition Cut-off Load
    • Charging Temperature 0℃ - 50℃
    • Discharging Temperature -20℃ - 50℃
    • Cell Balancing Yes, passive balancing
    • Communication Port RS232/RS485/CAN

    FAQ's

    What maintenance does the battery require?

    Zero maintenance—no watering or equalizing. Just install, register your 7-year warranty, and enjoy consistent, long-lasting power for years to come.

    Can I charge WattCycle LiFePO4 lithium batteries with solar panels?

    Yes—our 12V 314Ah LiFePO4 Battery is designed for seamless solar charging. Simply pair it with an MPPT charge controller and a 1.200W PV array to top up in one sunny day (≈4.5 hrs of peak sun).

    Optimal Setup: A 1.200W solar panel bank feeding an MPPT regulator ensures efficient charging of your 12V 314Ah solar battery.

    Charge Profile: MPPT controllers adjust voltage/current to maintain the ideal 14,2V – 14,6V range, protecting cell health and maximizing cycle life.

    Scalable: Whether you’re building out 12V 314Ah batteries for solar panels in parallel or keeping it simple with one pack, the WattCycle system adapts—no special wiring or firmware tweaks required.

    Does the WattCycle 51.2V Server Rack LiFePO4 Battery’s BMS include low-temperature charging disconnect?

    Yes. The built-in 100A BMS protects against both low-temperature charge and discharge. Charging automatically cuts off below 0 °C ± 4 °C, and discharging cuts off below –20 °C ± 4 °C. This prevents cell damage in cold conditions and helps extend overall battery life.

    Do I need a special charger for WattCycle LiFePO4 server rack batteries?

    For optimal performance, please use a dedicated 58.4V LiFePO4 battery charger. 

    There are also two alternative charging methods:
    1. Solar Panel + MPPT: Connect photovoltaic panels to an MPPT charge controller sized for a 48V LiFePO4 battery.
    2. Inverter + Charger: Use an inverter with built-in AC to DC charging set to LiFePO4 parameters.

    How many cells are inside the 48V battery?

    There are 16 EV grade A+ LiFePO4 cells, each 3.2V nominal. 16 pcs 3.2V cells in series to form a 51.2V system with 100Ah capacity—perfect for a 5kW server rack battery application.

    Can I connect 48V 100Ah 3U server rack battery in series or parallel?

    You can only parallel them. You can link up to 16 identical WattCycle 48V 100Ah server rack batteries in parallel, creating up to a 48V 1600Ah system. Please do not connect in series. For safe paralleling, ensure all batteries are the same model, capacity, and age, and let the BMS manage current balancing.

    What communications and monitoring options are available?

    Monitor every cell string via Bluetooth (WattCycle app) or through CAN/RS485/RS232 outputs. Real-time voltage, current, temperature, and state-of-charge data let you stay ahead of maintenance and optimize performance.

    How do I maintain my WattCycle rack battery?

    LiFePO4 chemistry is maintenance-free no watering or equalization needed. Just keep terminals clean, avoid extreme temperatures, and follow your inverter’s recommended charge settings. Periodic app checks ensure your system stays healthy.

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