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SigmasTek  |  SKU: BW-3703

APC Back-UPS NS 1250 BN1250 High Performance UPS Replacement Battery Set

Sale price $32.99 USD Regular price $48.30
Shipping calculated at checkout.

➤ Replacement set includes 2 SigmasTek SP12-7.5HR batteries, 12V 7.5 AH

➤ Specially engineered for UPS units requiring high power over short periods

➤ Factory fresh, spill-proof, and vibration resistant for extended reliability

➤ Meets strict safety standards with U.L. and CE certifications

➤ Tested to exceed OEM standards and covered by 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 | 7.5 Ah

Terminal Type

F2

Replacement SigmasTek SP12-7.5HR Battery Set for APC NS 1250 BN1250 UPS

Ensure continued protection for your APC NS 1250 BN1250 with a dependable, factory-fresh replacement UPS battery set. The SigmasTek SP12-7.5HR batteries offer reliable performance, robust safety features, and the discharge characteristics necessary for UPS applications that require higher power output during short intervals. These replacement batteries are a trusted choice when you need a long-lasting battery option that keeps critical systems online during power disturbances.

Key Specifications

  • Includes: 2 SigmasTek SP12-7.5HR batteries
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (Amp-hours)
  • Battery Model: SP12-7.5HR
  • Quantity: 2 batteries per set
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Safety/Approvals: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal / Tag: F2 (as indicated in product text)
  • Compatible with: APC NS 1250 BN1250 / APC Back-UPS (as indicated)

Benefits

This replacement set is tailored for UPS systems that benefit from a high rate discharge design—delivering short bursts of power when the UPS must support increased load. The valve-regulated, spill-proof construction provides safety and ease of installation in enclosed UPS compartments. With low self-discharge, these batteries retain capacity over time, making them an excellent long-lasting battery solution for backup inventories or seasonal equipment.

Vibration-resistant construction enhances longevity in environments where movement or mechanical vibration could otherwise degrade battery life. Certified by U.L. and CE standards, these batteries meet recognized safety and quality benchmarks. Use them in Uninterruptible Power Supply units, emergency power supply systems, or certain battery-powered tools that require reliable, rapid-power delivery. Each battery set is tested by experienced technicians to ensure it meets or exceeds OEM expectations for performance and reliability.

As with all our replacement UPS battery sets, you must use the existing cables and hardware from your original APC NS 1250 BN1250 configuration to connect these batteries. If you need assistance, our support team is available to help with selection and installation guidance.

Protect your critical equipment with this high-performance, long-lasting replacement UPS battery set for the APC NS 1250 BN1250. Order now for quick shipping and restore dependable backup power to your systems today.


Payment & Security

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