48 Volt 50Ah Lithium Iron Phosphate (LiFePO4) Server Rack Batteries Higher Wire
48 Volt 50Ah Lithium Iron Phosphate (LiFePO4) Server Rack Batteries Higher Wire

48 Volt 50Ah Lithium Iron Phosphate (LiFePO4) Server Rack Battery

We have 6 in stock.
Regular price $800.00 Sale price$300.00
Shipping calculated at checkout.

  • Low stock - 6 items left
  • Inventory on the way

We've received a batch of server rack batteries that were new old stock with proprietary BMS for a specific manufacturer. We've replaced the electronics and face plate, and fully tested the batteries so they can work in any energy storage application. They include Bluetooth and CAN/RS485 communication, and can be configured to communicate in parallel. They will show scuffs because we've moved them during the rebuild process, and may have installed into a rack for test.

We can program the BMS for your specific inverter. Please contact us before purchase.

Please note: The majority of 2U size are white, not black as shown in the photo.


  • Chemistry: Lithium Iron Phosphate (LiFePO4, LFP)
  • Voltage: 48v nominal, 37.5v minimum - 53.5v maximum
  • Series: 15S
  • Amp-Hours: 50 Ah
  • Max charge: 25 amps
  • Max discharge: 50 amps
  • Dimensions: 18.75"W x 16.5"D x 2.5"H (2U) or 5.25"H (3U)
  • Weight: 65 lb
  • Cycle rating: 6000 cycles

About Us

Higher Wire Inc. gives new life to old lithium batteries and is revolutionizing the way the world views sustainable energy. We're solving environmental and supply-chain concerns by creating innovative technologies that make energy storage and generation more efficient and accessible, such as our patent-pending process to reintegrate batteries into Second Life applications. We safely disassemble used lithium battery packs and evaluate the individual cells within. Those which meet our strict grading criteria are repurposed into other forms of energy storage, which requires less energy and generates no chemical waste as compared to end-of-life recycling. We provide comprehensive solutions for municipalities, e-waste processing centers and battery end users to minimize their burden for processing, as well as design, engineering, installation and maintenance when deploying our Second Life systems.

Lithium Battery Safety

  • Misusing or mishandling a lithium-ion battery may cause fire or explosion, which can result in personal INJURY or DEATH and property damage. You MUST read the safety warnings and resources before purchasing, using, and/or handling batteries. Even if properly handled, lithium-ion batteries may still catch fire or explode. The buyer acknowledges these risks and absolves Higher Wire Inc. of any responsibility for any damage these cells may cause.
  • Unless otherwise stated, batteries sold by Higher Wire are unprotected and not recommended by us or their original manufacturers for use unless equipped with a protection circuit board (PCB), battery management system (BMS), and/or similar device.
  • Lithium batteries must be properly disposed of – NOT in a fire or in the trash. Laws vary at the city, state and national level, and it is the buyer’s responsibility to ensure they are recycling lithium batteries properly. Many local governments and retail stores offer free recycling.
  • Unless otherwise stated, batteries sold by Higher Wire are used and have no warranty, either from Higher Wire or the original manufacturer. Although we visually inspect and analyze/grade all batteries prior to sale, it is the buyer’s responsibility to inspect all batteries for physical damage, corrosion, and voltage upon receipt. Contact us immediately if there are any issues with an order, and do not use any battery that is damaged or below 3.0 volts upon receipt.
  • Unless otherwise stated, batteries sold by Higher Wire are charged to 40% SOC (~3.4v per cell for li-ion, 3.2v per cell for LiFePO4) per IATA and DOT regulations. Charge battery fully to 4.2V before first use.
  • Never attempt to mix and match brands, including models as well as old and new, used, and unused lithium-ion batteries. It is the buyer’s responsibility to ensure a battery is compatible with the intended application. Contact us with any questions, including technical.
  • Unless otherwise stated, batteries sold by Higherwire are shipped as UN3480 per DOT and IATA regulations. We ship using ground shipping to minimize risk of damage to persons or property.


We ship the majority of our orders by the next business day. Lithium batteries may take up to two business days to process to accommodate inspection and logging into our system.

Our shipping rates are based on the weight of all ordered products plus estimated weight of packaging. We make every effort to forecast an accurate shipping cost, but cannot be 100% certain in all cases. Please contact us at sales@higherwireenergy.com with any questions prior to purchase.

We pack and label all lithium battery shipments in accordance with Federal Regulation 49CFR173.185, as well as USPS Publication 52 Hazard Class 9 or UPS/Fedex guidelines. Unless otherwise stated, lithium batteries are not eligible for free shipping.

We try to pack all items in an order in a single box, however we may on occasion need to ship items separately. Special shipping does not apply to lithium ion batteries, and orders that include batteries may not qualify for free or expedited shipping.

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