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SigmasTek  |  SKU: BW-0010

APC S400R2BX120 High Performance Replacement Battery By SigmasTek

Sale price $66.60 USD Regular price $99.90
Shipping calculated at checkout.

➤ 12V, 7.5AH SigmasTek SP12-7.5 battery designed for APC S400R2BX120

➤ T2 terminal for secure and easy installation

➤ Engineered for long-lasting UPS performance

➤ Compatible and reliable replacement for APC UPS units


📦🚀 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

SigmasTek SP12-7.5 Replacement Battery for APC S400R2BX120

Need a reliable replacement for your APC S400R2BX120? The SigmasTek SP12-7.5 is engineered as a direct-fit, high-quality option to restore backup capability to your UPS. With a 12-volt, 7.5 amp-hour rating and a T2 terminal, this battery is built to provide consistent, long-lasting battery performance for APC S400R2BX120 installations.

Key Specifications

  • Model: SigmasTek SP12-7.5
  • Voltage: 12 Volts
  • Amp Hours: 7.5 AH
  • Terminal: T2
  • Compatibility: Designed specifically for APC S400R2BX120
  • Brand: SigmasTek

Benefits

This SigmasTek battery is a practical replacement UPS battery for APC S400R2BX120 owners who want a dependable, cost-effective power cell. As a high-performance UPS battery option, it offers steady voltage output to support your UPS through short outages and load transitions. Its 7.5 AH capacity provides a balance of runtime and compact size, making it suitable for rack and tower UPS configurations alike.

Expect a long-lasting battery experience when the replacement is installed correctly in your APC S400R2BX120. While compact, this unit is well suited for typical UPS applications such as server and network protection, emergency backup systems, and battery-powered equipment needing stable power delivery. The T2 terminal ensures reliable connections when installed using the original cables and hardware.

Choosing this SigmasTek SP12-7.5 gives you a replacement UPS battery that focuses on consistent performance and fit-for-purpose design. It’s an effective solution whether you’re replacing a single failed cell or stocking spares to maintain uninterrupted protection for critical systems.

Ready to upgrade the power in your APC S400R2BX120? Purchase this SigmasTek SP12-7.5 high-performance UPS battery today and restore dependable, long-lasting battery backup to your system. Order now to secure reliable runtime and peace of mind.


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