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SigmasTek  |  SKU: BW-1842

UPS12-9 UPS High Performance Compatible Replacement Battery Set - 2-Pack

Sale price $49.97 USD Regular price $70.79
Shipping calculated at checkout.

➤ Includes 2 brand new SigmasTek UPS12-9 batteries (12V 9AH)

➤ High rate discharge design ensures quick power delivery

➤ Valve regulated, spill-proof for maintenance-free use

➤ Low self-discharge and vibration resistant for durability

➤ U.L. recognized and CE certified with a 1-year warranty


📦🚀 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

SigmasTek UPS12-9 (T2) - Set of 2 Replacement Batteries (12V 9AH)

Keep your UPS running at peak reliability with this brand new twin pack of SigmasTek UPS12-9 (T2) batteries. Perfect for smaller UPS units or for replacing individual cells in a multi-battery cabinet, this set provides the compatibility and performance needed to maintain clean, uninterrupted power. Engineered as a replacement UPS battery option, these 12 Volt 9 AH units deliver the dependable output required by modern UPS systems and emergency power setups. Choose this high-performance UPS battery pair when you want a compact, long-lasting battery solution.

Key Specifications

  • Quantity: 2 SigmasTek batteries
  • Model: UPS12-9 (T2)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 9 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction (maintenance-free)
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Connection Note: Use all existing cables and hardware from your original configuration to connect these batteries
  • Shipping: In-stock orders typically ship within 24 hours

Benefits

Small but powerful, this 2-pack of SigmasTek UPS12-9 (T2) cells provides robust performance, longevity, and safety. The high rate discharge architecture supplies higher power output for short bursts — ideal for UPS systems that must ride out transient surges or support critical loads during transfer events. Valve-regulated spill-proof construction ensures safe, maintenance-free service in rackmount or enclosed UPS cabinets. The low self-discharge characteristic helps preserve charge during extended storage or irregular use, making these units a reliable long-lasting battery option for service technicians and end users alike.

As a certified, brand-new replacement UPS battery, this pair is suitable for Uninterruptible Power Supply (UPS) units, Emergency Power Supplies, and battery-powered tools requiring 12V 9AH cells. U.L. Recognition and CE Certification underscore the safety and quality standards of these batteries. With a one-year warranty and laboratory testing to meet or exceed OEM specifications, you can trust this high-performance UPS battery pair to restore runtime and protect critical electronics.

Don’t wait until a downtime event impacts operations—order this SigmasTek UPS12-9 (T2) 2-pack today for a cost-effective, high-quality replacement UPS battery solution and enjoy fast shipping and dependable service.


Payment & Security

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