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SigmasTek  |  SKU: BW-4516

SLA Compatible Replacement Battery for CyberPower RB1270X2A

Sale price $20.87 USD Regular price $26.36
Shipping calculated at checkout.

➤ Includes 2 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for CyberPower RB1270X2A UPS

➤ High rate discharge design supports quick power needs

➤ Valve regulated, spill-proof for safe operation

➤ Low self-discharge keeps batteries ready

➤ Certified and warrantied for dependable use


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

SigmasTek SP12-5.5HR Replacement Battery Set for CyberPower RB1270X2A

Upgrade your CyberPower RB1270X2A with this brand new replacement UPS battery set engineered for reliable performance, quick response under load, and long-term dependability. Designed specifically to match the power profile and discharge requirements of the CyberPower RB1270X2A, this high-performance UPS battery pair provides the consistent output and rugged construction required for mission-critical UPS systems, emergency power applications, and battery-powered tools. These batteries deliver dependable backup power when you need it most and are tested to meet or exceed OEM expectations.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Quantity: 2 batteries per set
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatible With: CyberPower RB1270X2A UPS unit
  • Applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools

Benefits

These replacement batteries are crafted for durability and dependable service life. The valve-regulated, spill-proof construction ensures safe operation and low maintenance, while low self-discharge characteristics preserve capacity during storage, delivering a long-lasting battery solution you can trust. The high rate discharge design means the batteries are optimized for short bursts of higher power demand — ideal when your CyberPower RB1270X2A needs to support critical loads during an outage. High vibration resistance and robust manufacturing translate into fewer failures in harsh environments, making these batteries suitable for both data center UPS racks and portable emergency power systems.

As a high-performance UPS battery option, this set is tested by experienced technicians to ensure performance and reliability. Whether you’re replacing aging cells in your UPS, refreshing an emergency power cabinet, or keeping battery-powered tools ready for action, these SigmasTek units deliver the performance and consistency required for professional and residential applications. The included 1 year warranty gives extra peace of mind and demonstrates the manufacturer’s confidence in product quality.

Please note: you will need to reuse all existing cables and hardware from your original configuration to connect these replacement batteries in your CyberPower RB1270X2A. If you need help selecting or installing the correct replacement UPS battery, contact our customer service at for expert guidance. Orders for in-stock items typically ship within 24 hours.

Ready to restore reliable back-up power? Buy this high-performance, long-lasting battery set for your CyberPower RB1270X2A today and secure the dependable protection your equipment deserves.



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