We are open for business 7 days a week. We will deliver your battery with Free Expedited Shipping within 3-4 Business Days

Enersys HX300 High Rate UPS Battery (OEM)

MSRP: $303.59
(You save $50.60 )
Call Customer Service for Availability and Lead Time!
6.90 (in)
8.20 (in)
10.20 (in)
Free Shipping

Product Overview

This is an EnerSys HX300 high rate battery, with an output of 284 Watts per Cell on a 15 minute rate at 1.67 Volts from the EnerSys HX series. The EnerSys HX300 battery assures uninterruptible working process and provides constant power backup for UPS systems.


Fits to following Applications:Benefits & Features:
Data Centers Positive and negative plate grids made of lead-calcium-tin alloy for long life and efficient recharge
Network Operations Centers Individual flame arresting cell vents. Self regulating pressure relief valves - prevent ingress of atmospheric oxygen
Industrial Process Control Facilities DataSafe® HX top terminated battery containers and covers are hermetically sealed to provide leak resistance over the life of the product
Internet Housing Sites AGM separators - The electrolyte is completely absorbed into the separator
Semiconductor Manufacture High performance brass threaded receptacle, bolt terminal, and faston terminals
Banks & Financial Markets Increased energy density
  Computer optimized electrochemistry for increased power up to the 15 minute rate to 1.67 volts/cell


You may choose between EnerSys HX300 high rate OEM Battery and high quality, less expensive Replacement battery.

The EnerSys HX300 high rate Replacement battery has a self-discharge design of less than 3% per month, an expected service life of up to 10 years in standby, and up to 300 complete discharge cycles, making it ideal for a variety of applications including Uninterruptible Power Supply (UPS), Emergency Power Supply, Emergency Lighting, Solar Power Systems, and other.

All EnerSys HX300 high rate replacement batteries sourced by feature Absorbent Glass Mat (AGM) Sealed Battery Technology, and are enclosed in a ABS (UL94 V-0) flame retardant case, making them safe to operate in any position, near people and sensitive equipment. Additionally, all our high rate batteries are UL (Underwriters Laboratories) certified.

Please check the dimensions of your current EnerSys HX300 battery prior to ordering as manufacturers may change product specifications without notice.

If you need help or any additional information about the EnerSys HX300 do not hesitate to contact our customer service representatives via email, chat or call toll free at (800) 409-0250.

  • Package contains 1 battery
  • Absorbent Glass Mat (AGM) Technology
  • Self-Discharge at 77°F: <2%/month
  • UL Listed
  • Guaranteed compatibility with original battery
  • 2-Year Warranty for the SPX12-300FR HR battery (With an option to upgrade to 3-Year Warranty)
  • 3-Year Warranty for the HX300 (OEM) battery
 Volts  12 V
 Amp Hours  72 AH
 Watts per Cell  284 W/C
 Weight  60.0 Lbs
 Length  10.20 In
 Width  6.90 In
 Height  8.20 In
 Terminal  IT
  • Free Shipping for all orders
  • ETD: 3 Business Days if in-stock
  • Shipping Methods: UPS Ground (or freight for larger qty)
  • We ship in 1 business day for all in-stock items
  • Shipping & Return Policies
  • 2-Year Warranty for the Replacement battery (With an option to upgrade to 3-Year Warranty)
  • 3-Year Warranty for the OEM battery
  • Warranty Policy

Warranty Information

We offer great quantity discounts on all our batteries. Get a quote today!

Contact our customer service representatives via:


Telephone: +1 (800) 409-0250

(RFQ) Request For Quotation Form: Click Here