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SigmasTek  |  SKU: BW-1309

12 Volt 26 Amp NB Terminal SLA High Performance Replacement Battery Set (10-Pack)

Sale price $780.00 USD Regular price $1,105.00
Shipping calculated at checkout.

➤ Set of 10 SigmasTek 12V 26Ah batteries with nut & bolt terminals

➤ High-rate discharge and spill-proof valve regulated design

➤ Low self-discharge and high vibration resistance

➤ U.L. recognized, CE certified, factory fresh with 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 | 26 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-26 NB Battery Set — Compatible with Multiple UPS Models

This SigmasTek SP12-26 NB battery set delivers powerful 12V, 26Ah performance for a wide range of UPS and high-rate discharge applications. Sold as a factory-fresh set of 10 batteries, these units are designed for customers who need robust capacity and repeatable performance for larger backup systems. With valve-regulated, spill-proof construction and certifications for safety and quality, these banks are an excellent choice when you require replacement UPS battery components in bulk or to rebuild battery strings.

Key Specifications

  • Product: SigmasTek SP12-26 NB (sold in sets of 10)
  • Voltage: 12 Volts
  • Amperage / Capacity: 26 Ah
  • Terminal Type: Nut & Bolt
  • Quantity: 10 batteries per set
  • Construction: Valve Regulated, Spill Proof (VRLA)
  • Design: High Rate Discharge Design
  • Certifications: U.L. Recognized and CE Certified
  • Warranty: 1 Year
  • Condition: Brand New, Factory Fresh

Benefits

  • Durability: VRLA construction and high vibration resistance ensure these batteries hold up under mechanical stress and repeated high-rate discharges, making them a durable choice for real-world UPS installations.
  • Long life: Low self-discharge characteristics and factory testing help ensure these batteries offer extended shelf and service life so your system remains ready when called upon.
  • High performance: Specifically engineered for high-rate discharge applications, these units provide the elevated power output necessary for short-duration, high-demand events while preserving overall battery health.
  • Versatile applications: Ideal for uninterruptible power supply (UPS) units, emergency power supply systems, and battery-powered tools; this set supports large installations and battery bank rebuilds that require matched, high-capacity cells.
  • Safety and quality: UL recognition and CE certification demonstrate compliance with key safety standards, and the 1-year warranty gives added confidence for installation and operation.

If your project requires a reliable set of replacement UPS battery modules with high-rate discharge capability and industry certifications, purchase the SigmasTek SP12-26 NB 10-pack today. Buy now to secure superior, long-lasting battery performance for your UPS or emergency power system.


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