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SigmasTek  |  SKU: BW-2433

CyberPower RB1290X4A High Performance Compatible Replacement SLA Battery

Sale price $98.99 USD Regular price $144.91
Shipping calculated at checkout.

➤ Comes with 4 factory fresh SigmasTek SP12-9HR batteries (12V 9AH)

➤ High rate discharge design ideal for CyberPower RB1290X4A UPS units

➤ Spill-proof, valve regulated construction for maintenance-free use

➤ Tested to meet or exceed OEM specifications for reliability

➤ Includes 1-year warranty for added protection


📦🚀 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 | 9 AH

Terminal Type

F2

Replacement SigmasTek SP12-9HR Battery Set for CyberPower RB1290X4A UPS

Restore reliable backup power for your CyberPower RB1290X4A with this replacement UPS battery set. The pack includes four SigmasTek SP12-9HR batteries (12 Volts, 9 AH) engineered for dependable compatibility and superior performance. Whether protecting systems in small offices or home networks, this long-lasting battery option helps ensure continuous operation during outages and high-load events.

Key Specifications

  • Quantity: 4 batteries per set
  • Battery Model: SigmasTek SP12-9HR
  • Voltage: 12 Volts
  • Capacity: 9 AH (Amp-hours)
  • 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
  • Product Marking: SigmasTek12 Volts9 AHF2SLA Batteries
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS batteries

Benefits

  • Reliable durability — Constructed with valve-regulated, spill-proof technology and high vibration resistance for robust, trouble-free service.
  • Extended service life — Low self-discharge helps preserve stored charge and contributes to a long-lasting battery that requires less frequent replacement.
  • Peak performance — The high rate discharge design provides the extra power needed for brief, intensive loads, making it a trusted high-performance UPS battery.
  • Certified quality — U.L. recognized and CE certified for confidence in safety and manufacturing standards.
  • Practical uses — Specifically suited for Uninterruptible Power Supply (UPS) units like the CyberPower RB1290X4A, emergency power supplies, and battery-powered tools that demand immediate backup power.
  • Factory-fresh assurance — Each battery set is brand new and factory tested to meet or exceed OEM specifications for a seamless replacement experience.

Ready to upgrade your backup power? Purchase this replacement UPS battery set for the CyberPower RB1290X4A now to secure a high-performance UPS battery and a dependable, long-lasting battery solution. Order today for prompt shipment and peace of mind.


Payment & Security

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