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SigmasTek  |  SKU: BW-4705

CyberPower CPS385 High Performance Compatible SLA Replacement Battery 3.5 lb

14% off
New arrival
Sale price $29.99 USD Regular price $34.99
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Set of 16 SigmasTek SP12-5.5HR batteries (12V, 5.5 AH)
Optimized for high rate discharge UPS use
Valve regulated, spill-proof design prevents leaks
Low self-discharge for longer standby readiness
Certified and backed by 1-year warranty
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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.

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


Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

SigmasTek SP12-5.5HR Replacement for CyberPower CPS385

The SigmasTek SP12-5.5HR replacement for the CyberPower CPS385 is engineered to deliver reliable compatibility, strong short-term output, and trusted safety features. This replacement UPS battery is ideal for restoring runtime and protecting connected equipment in the event of outages or transient power events. If you require a high-performance UPS battery that offers consistent protection and a long-lasting battery life, the SP12-5.5HR is a practical and economical solution.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal: F2
  • Battery Type: SLA (Sealed Lead Acid)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible With: CyberPower CPS385 UPS units

Benefits

The SP12-5.5HR offers dependable durability and performance, making it an excellent long-lasting battery option for the CyberPower CPS385. Valve-regulated and spill-proof, the battery minimizes maintenance and improves safety during installation and operation. Low self-discharge helps ensure the battery remains ready for service after periods of standby, and high vibration resistance allows for reliable performance in a variety of environments.

As a high-performance UPS battery, it is specially suited to short, high-demand discharge scenarios—exactly when UPS systems need to deliver surge power to maintain uptime for critical loads. Use this replacement in Uninterruptible Power Supply (UPS) units, emergency power supply configurations, and battery-powered tools where compact, dependable power is required. The SP12-5.5HR is tested to meet or exceed OEM expectations so your CPS385 can continue to protect essential electronics.

Each battery is brand new, factory tested, and certified to U.L. and CE standards. Backed by a one-year warranty, this SigmasTek unit provides reliable performance and assurance for both professional and consumer users seeking a cost-effective solution.

Ensure uninterrupted protection for your CyberPower CPS385—purchase the SigmasTek SP12-5.5HR replacement UPS battery now and keep your systems running when it matters most.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : SLA Battery
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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