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SigmasTek  |  SKU: BW-1888

GNB S12V500 High Performance UPS Replacement Battery

Sale price $478.99 USD Regular price $684.71
Shipping calculated at checkout.

➤ Compatible GNB S12V500 rechargeable sealed lead acid battery

➤ High-rate discharge for consistent UPS performance

➤ Low self-discharge reduces maintenance and extends life

➤ Spill-proof, no-leak design operable in any position

➤ UL Listed ABS flame retardant case with 3-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 | 159 Ah

Terminal Type

Internal Thread

Replacement GNB S12V500 — Compatible with GNB S12V500 UPS

Engineered for dependable backup and consistent performance, the replacement GNB S12V500 is a reliable option for UPS systems and emergency power applications. This replacement UPS battery uses a high-rate discharge design and sealed lead acid AGM construction to deliver stable output when the power goes out. If you need a high-performance UPS battery that supports critical loads, the GNB S12V500 offers proven reliability and long life.

Key Specifications

  • Model: GNB S12V500
  • Battery Type: Rechargeable sealed lead acid (AGM)
  • Wattage: 539 Watts per cell on 15-min rate at 1.67 Volts
  • Voltage: 12 Volts
  • Capacity: 159 Ah
  • Terminal Type: Internal Thread
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Case: ABS (UL94 V-0) flame retardant case
  • Construction: Spill proof, no-leak construction — can be operated in any position
  • Self-discharge: Less than 3% per month
  • Standby Life Expectancy: Up to 10 years in standby use
  • Cycle Life: Up to 300 cycles at 100% discharge in cycle service
  • Warranty: 3 Year Warranty
  • Listing: UL Listed
  • Condition: Brand New, Factory Fresh
  • Quality Assurance: Superior Performance Guaranteed; Professionally tested and packaged
  • Seller/Distributor reference: SigmasTek

Benefits

The GNB S12V500 replacement UPS battery is built for longevity and reliable duty. Its AGM design provides spill-proof operation and dependable performance in varying installation orientations. With a self-discharge rate under 3% per month and an expected standby life of up to 10 years, this long-lasting battery minimizes downtime and replacement costs. For cycling applications, it provides up to 300 full discharge cycles, delivering sustained value over time.

As a high-performance UPS battery, the GNB S12V500 supports critical infrastructure including UPS systems, emergency power backup, telecom hardware, and power tool charging systems. The 539 W per cell 15-minute rating and robust case construction ensure the battery meets demanding load and safety requirements. UL listing and a 3-year warranty back its dependable design.

Ready to protect your equipment? Order this replacement GNB S12V500 replacement UPS battery now for a reliable, high-performance solution and fast shipping. Secure long-lasting battery protection for your critical systems today.


Payment & Security

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