Welcome to our store. Proudly serving customers across North America for years. Learn more

For support or quotes: sales@batteryweb.com

WELCOME10
Enersys  |  SKU: BW-5576

EnerSys HX HX505 UPS High Performance Replacement Battery 103.09 lb

17% off
New arrival
Sale price $684.99 USD Regular price $827.99
Shipping calculated at checkout.
Genuine EnerSys HX 12HX330 battery with high-rate discharge design
Long life up to 10 years and 300 deep cycles
Spill-proof construction and flame retardant ABS case
Backed by 3-year warranty for peace of mind
UL listed and factory fresh for optimal performance
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 145 Ah

Terminal Type

Internal Thread

EnerSys HX HX505 — Compatible UPS Model: EnerSys HX HX505

Upgrade your backup power with the genuine EnerSys HX HX505 replacement UPS battery — engineered for outstanding compatibility, consistent performance, and proven reliability in UPS systems. This high-performance UPS battery is designed for demanding high-rate discharge applications and delivers 491 Watts per cell on a 15-minute rate at 1.67 Volts, making it an ideal choice when you need dependable runtime and quick recovery. If you’re looking for a long-lasting battery solution to maintain server rooms, network closets, or critical infrastructure, the EnerSys HX HX505 provides factory-fresh quality and professional testing for trouble-free installation.

Key Specifications

  • Model: EnerSys HX HX505
  • Brand: EnerSys
  • Battery Type: Rechargeable sealed lead acid (Absorbent Glass Mat)
  • Nominal Voltage: 12 Volts
  • Capacity: 145 Ah
  • Watts per Cell: 491 Watts per cell on 15-min rate at 1.67 Volts
  • Self-Discharge Rate: Less than 3% per month
  • Cycle Life: Up to 300 cycles at 100% discharge (cycle service)
  • Standby Life Expectancy: Up to 10 years in standby use
  • Terminals: Internal Thread
  • Case Material: ABS (UL94 V-0) flame retardant case
  • Construction: Spill proof, no-leak construction — can be operated in any position
  • Technology: Absorbent Glass Mat (AGM)
  • Warranty: 3 Year Warranty
  • Certifications: UL Listed
  • Condition: Brand New, Factory Fresh — professionally tested and packaged

Benefits

The EnerSys HX HX505 delivers a durable, long-lasting battery solution engineered for heavy-duty UPS and standby applications. Its high-rate discharge design and AGM construction provide exceptional performance under load, ensuring your critical equipment remains online when power events occur. The low self-discharge rate and long standby life make this a true long-lasting battery for emergency power systems where readiness matters.

Durability features such as a flame retardant ABS case, spill-proof construction, and no-leak design allow safe operation in a variety of orientations and environments. Whether used in data centers, telecommunications, medical equipment backup, or industrial UPS systems, this high-performance UPS battery withstands frequent cycling and delivers consistent output for longer service intervals.

Typical applications include uninterruptible power supplies (UPS), emergency power systems, telecommunications, and other critical backup power uses. Technicians and facility managers will appreciate the professional testing and factory-fresh condition that minimize installation issues and maximize performance from day one.

Ready to replace your existing pack? Order the genuine EnerSys HX HX505 replacement UPS battery today to secure reliable runtime and peace of mind. Buy now to take advantage of fast shipping and our competitive pricing.

Technical Specifications

Voltage12 Volts
Amp Hours145 Ah
Terminal TypeInternal Thread
Length (in.)13.3
Width (in.)6.8
Height (in.)10.7
Weight (lb.)103.0

Product Highlights

  • Brand Replacement : EnerSys HX
  • Manufacturer: Enersys
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.