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SigmasTek  |  SKU: BW-1838

UPS12-9 UPS High Performance Compatible Replacement Battery Set - 4-Pack

Sale price $99.94 USD Regular price $141.58
Shipping calculated at checkout.

➤ Includes 50 brand new SigmasTek UPS12-9 batteries (12V 9AH)

➤ Designed for high rate discharge to meet demanding UPS power needs

➤ Spill-proof valve regulated construction ensures safe operation

➤ Low self-discharge and vibration resistant for durability

➤ UL recognized and CE certified with 1-year factory 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) Replacement Set - 4 Pack (Compatible with UPS12-9 (T2) UPS)

Replace worn-out cells with this compact set of four SigmasTek UPS12-9 (T2) batteries, designed to restore reliable backup power for small UPS strings or individual units. This replacement UPS battery pack offers factory-fresh condition and the performance characteristics you need for dependable short-duration power delivery in UPS12-9 (T2) systems. Ideal for home offices, small business racks, or single-unit maintenance, these batteries combine safety certifications with practical performance.

Key Specifications

  • Brand: SigmasTek
  • Model: UPS12-9 (T2)
  • Quantity: 4 batteries
  • Voltage: 12 Volts
  • Capacity: 9 AH
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Low Self-discharge
  • High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: Use all existing cables and hardware from original configuration to connect new batteries
  • Shipping Note: In-stock orders typically ship within 24 hours

Benefits

  • Compact Durability: With valve regulated and spill proof construction plus high vibration resistance, these batteries are built to last even in compact UPS installations and mobile deployments.
  • Extended Service Life: Low self-discharge chemistry helps this set function as a long-lasting battery option, ideal for maintaining reserve capacity and ensuring readiness when power interruptions occur.
  • High-Performance Output: The high rate discharge design enables these cells to supply higher power for short durations — making them a dependable high-performance UPS battery for protecting critical electronics and communications gear.
  • Certified Safety: U.L. recognition and CE certification ensure quality and compliance for both residential and professional environments.
  • Multi-Purpose Use: Recommended for Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools, these batteries are versatile and ready for a variety of applications.
  • Professionally Tested: Our technical staff tests each battery to meet or exceed OEM specifications so your replacement UPS12-9 (T2) components integrate smoothly into your system.

Replace your depleted UPS cells with confidence. Purchase this 4-pack of SigmasTek UPS12-9 (T2) replacement UPS battery units today for reliable, high-performance backup power and fast shipping with a 1 year warranty.


Payment & Security

Payment methods

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