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SigmasTek  |  SKU: BW-1386

APC S15BLK High Performance Replacement Battery Set

Sale price $65.99 USD Regular price $94.35
Shipping calculated at checkout.

➤ Includes 4 replacement 12V 7.5AH UPS batteries with F2 terminals

➤ AGM sealed battery technology for maintenance-free use

➤ UL certified to meet APC S15BLK original specs

➤ Compatible with existing hardware for easy installation

➤ 1-year warranty with fast UPS Ground delivery


📦🚀 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 | 7.5 Ah

Terminal Type

F2

APC S15BLK Replacement UPS Battery Pack — Compatible with APC S15BLK

Restore reliable backup power with this complete APC S15BLK replacement UPS battery pack. Designed for direct compatibility with the APC S15BLK, this set of four 12V 7.5AH sealed lead acid batteries delivers dependable performance and consistent run-time for your critical systems. Built using Absorption Glass Mat (AGM) sealed battery technology and meeting or exceeding original manufacturer specifications, these batteries provide the peace of mind you expect from a high-quality replacement UPS battery.

Key Specifications

  • Package contains: 4 batteries
  • Volts: 12 V
  • Amp Hours: 7.5 AH
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorption Glass Mat)
  • Terminal: F2
  • Weight: 21 Lbs (per package)
  • Length: 5.95 In
  • Width: 2.56 In
  • Height: 3.7 In
  • Warranty: 1-year Warranty
  • Certification: UL (Underwriters Laboratories) certified
  • Brand / Spec Sheet: SigmasTek
  • Shipping methods: UPS Ground and USPS; in-stock items ship in 1 business day
  • Guaranteed compatibility with original battery set

Benefits

  • Durability: AGM sealed construction resists vibration and leakage for reliable service life in UPS systems.
  • Long life: Engineered to meet or exceed original APC specifications, providing a long-lasting battery solution for routine and emergency use.
  • High performance: Consistent 12V 7.5AH capacity ensures stable output under load for sensitive electronics and network equipment.
  • Safe and certified: UL certification offers added assurance for commercial and home installations.
  • Easy replacement: Designed to fit the original APC S15BLK configuration—reuse existing cables and hardware for a straightforward swap.
  • Versatile applications: Ideal as a replacement UPS battery for APC S15BLK units and well-suited for emergency power, telecom equipment, alarm systems, and portable tools requiring sealed lead acid power.
  • Value pack: Price includes all 4 batteries to replace the entire factory set, ensuring balanced performance and optimal runtime.

Whether you need a high-performance UPS battery to protect servers, network gear, or critical home electronics, this APC S15BLK replacement UPS battery pack offers the long-lasting battery life and dependable performance you need. If you prefer to buy a single cell, visit UPS Batteries by V and AH to select the individual battery you require. For assistance, contact customer service via email, chat, or call toll-free at (800) 657-1303. Purchase your replacement APC S15BLK batteries now to restore reliable backup power.


Payment & Security

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