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Rich Solar

Rich Solar ALPHA 5 PRO | 51.2V 100Ah LiFePO4 Battery

SKU RS-B5121P
$1,799.99
$1,799.99

Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Northgrid Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@northgridsupply.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

The ALPHA 5 PRO is a 51.2V, 100Ah LiFePO4 server-rack battery designed for residential, commercial, RV, and off-grid energy storage applications. It provides 5,120Wh of nominal energy in a standard 3U rack-mount form factor.

Grade-A prismatic LiFePO4 cells provide more than 7,000 cycles at 80% depth of discharge. An integrated battery management system provides protection against overcharge, over-discharge, overcurrent, and temperature conditions while automatically balancing cells.

Wi-Fi and Bluetooth monitoring provide real-time access to battery status, while RS485, RS232, and CAN communications support integration with compatible inverter systems. Multiple batteries can also be connected in parallel to expand available storage capacity.

Key Features

  • LiFePO4 Cell Technology: Uses Grade-A prismatic lithium iron phosphate cells with welded connections.
  • Long Cycle Life: Delivers more than 7,000 cycles at 80% depth of discharge.
  • Smart BMS Protection: Provides protection against overcharge, over-discharge, overcurrent, and temperature fluctuations with automatic cell balancing.
  • Dual-Layer Protection: Includes FET protection and a built-in fail-safe circuit breaker.
  • Wireless Monitoring: Wi-Fi and Bluetooth connectivity allow real-time monitoring of state of charge, voltage, current, temperature, and capacity.
  • LCD and LED Display: Front-panel indicators provide state of charge, operating status, and alarm information.
  • Closed-Loop Communications: Supports communication with multiple compatible inverter brands.
  • Parallel Expansion: Supports parallel battery configurations for expanded energy storage while maintaining BMS communications.
  • 3U Rack-Mount Design: Fits standard server-rack installations and uses a sheet-metal casing for strength.
  • Built-In Carry Handles: Integrated handles assist with transportation and installation.
  • Low-Temperature Protection: Charging is disabled below 32°F to protect the battery in cold conditions.
  • Multiple Charging Sources: The product page identifies LiFePO4 chargers, solar panels, and generators as charging options.
ALPHA 5 PRO 51.2V 100Ah LiFePO4 battery
ALPHA 5 PRO WiFi and Bluetooth battery monitoring application

Real-Time Battery Insight &
Control

  • WiFi + Bluetooth App: Monitor SOC, voltage, current, temperature, and capacity in real time. Receive instant alerts for safe battery operation.
  • LCD & LED Display: Front-panel indicators show SOC, status, and alarms at a glance.
  • User-Friendly Interface: Simple, intuitive design for easy monitoring by anyone.

Advanced Safety with 10-Year
Warranty

  • Smart BMS Protection: Full protection against overcharge, over-discharge, overcurrent, and temperature fluctuations, with automatic cell balancing.
  • Dual-Layer Safety: Built-in fail-safe circuit breaker plus FET protection for extreme conditions (-4°F to 239°F).
  • Certified & Compliant: Meets UL1973, UL9540A, FCC, UN38.3, and MSDS standards for safe and reliable operation.
ALPHA 5 PRO battery management system and safety certifications
ALPHA 5 PRO Grade-A prismatic LiFePO4 cells with over 7000 cycles

Premium LiFePO4 Cells

  • Grade-A Prismatic Cells: Welded design ensures no loose connections and delivers 7,000+ cycles at 80% DoD.
  • High Energy Density: 5120Wh capacity in a compact, lightweight design for easy installation.
  • Wide Temperature Range: Supports discharge from -4°F to 149°F for reliable performance in extreme conditions.

Easy Installation with Rack-
Mount Design

  • 3U Rack-Mount Design: Standard 3U size fits most server racks, with a robust sheet metal casing for durability and strength.
  • Carry Handle Design: Built-in handles make transportation and installation effortless.
  • Optional Battery Server Rack: Holds up to 6× ALPHA 5 Series Batteries (30.72 kWh) with 600A copper busbars and protective covers for safe, efficient power.
ALPHA 5 PRO batteries installed in an optional server rack

Specifications

  • Battery Type: LiFePO4
  • Nominal Voltage: 51.2V
  • Nominal Capacity: 100Ah
  • Minimum Capacity: 99.5Ah
  • Nominal Energy: 5,120Wh
  • Charging Voltage: 56V
  • Maximum Charging Voltage: 57.6V
  • Discharge Cutoff Voltage: 44.8V
  • Standard Charging Current: 20A
  • Maximum Charging Current: 100A
  • Standard Discharge Current: 50A
  • Continuous Discharge Current: 100A
  • Maximum Discharge Current: 100A
  • Communication Ports: RS485, RS232, CAN
  • Wireless Monitoring: Wi-Fi + Bluetooth
  • Protection Class: IP21
  • Shell Material: Sheet-metal casing
  • Initial Internal Resistance: ≤50mΩ
  • Monthly Self-Discharge Rate: ≤5%
  • Charge Temperature: 32°F to 140°F
  • Discharge Temperature: -4°F to 149°F
  • Recommended Operating Temperature: 32°F to 122°F
  • Cycle Life: 7,000+ cycles
  • Weight: 100.9 lb
  • Rack Size: 3U
  • Certifications and Compliance: UL1973, UL9540A, FCC, UN38.3, and MSDS

Size Guide

  • Overall Dimensions: 17.7 × 17.8 × 5.2 inches

Compatibility

Communication Protocols: RS485, RS232, and CAN

RS485 Protocol Support: PYLON, GROWATT, SCHNEIDER, LUXPOWER

CAN Protocol Support: PYLON, GROWATT, VICTRON ENERGY, SOL-ARK, SCHNEIDER, LUXPOWER, GOODWE, SOLIS, SENERGY, SMA, MEGAREVO

Compatible Installation: Standard 3U server racks

Parallel Configuration: Multiple batteries can be connected in parallel for expanded capacity. Batteries must not be connected in series.

Included

  • 51.2V 100Ah LiFePO4 battery
  • Positive connector
  • Negative connector
  • Positive battery parallel cable
  • Negative battery parallel cable
  • Grounding wire
  • Communication cable for NOVA Series inverter connection
  • Battery-to-battery communication cable
  • Communication cable for supported third-party inverter connection
  • Mounting screws
  • User manual

Product Support

Frequently Asked Questions

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  • SATISFACTION GUARANTEED 

    If your order arrives defective or fails to

    function properly, you will receive a full 100% refund!

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Frequently Bought Together

Total price$2,999.97