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SigmasTek  |  SKU: BW-3652

APC BACK-UPS XS 800 (BX800) UPS Compatible Replacement Battery Set

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

➤ Includes 2 SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH)

➤ Designed for APC BACK-UPS XS 800 (BX800) UPS units

➤ Valve regulated and spill-proof for safe, maintenance-free performance

➤ Low self-discharge rate ensures long storage life

➤ High vibration resistance plus U.L. recognized and CE certified


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

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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

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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 SP12-7.5HR Replacement Battery Set for APC BACK-UPS XS 800 (BX800)

Restore dependable backup power to your APC BACK-UPS XS 800 (BX800) with this premium replacement UPS battery set. Designed for seamless compatibility and engineered for performance, this pair of SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) provides the rapid discharge capability and steady output required by the BX800 during power interruptions. Ideal for safeguarding home networks, workstations, and critical electronic equipment, this kit brings your UPS back to life with reliable, long-lasting battery power.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-7.5HR
  • Quantity: 2 batteries per set
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Note: Use all existing cables and hardware from original configuration to connect new batteries

Benefits

  • Durable build – Valve regulated and spill-proof construction ensures safe handling and reduces maintenance concerns in enclosed UPS compartments.
  • Long-lasting battery performance – Low self-discharge helps preserve capacity between uses so your replacement batteries remain ready for service when the BX800 needs them most.
  • High-performance output – Specially designed for high rate discharge scenarios, these batteries provide the quick energy output required during short-term, high-load events in UPS systems.
  • Safety and compliance – U.L. recognition and CE certification reflect adherence to recognized safety standards, supporting trouble-free operation.
  • Multiple uses – Perfect as a replacement UPS battery for uninterruptible power supply units, emergency power systems, and battery-powered tools requiring dependable, short-burst power.
  • Tested reliability – Expert testing and quality control ensure these SigmasTek batteries meet or exceed OEM expectations for the APC BACK-UPS XS 800 (BX800).

This high-performance UPS battery set is an economical way to renew the protection provided by your APC BACK-UPS XS 800 (BX800). Installation requires reuse of your original cables and hardware; once installed, you’ll have restored backup runtime and confidence in a long-lasting battery solution backed by a one year warranty.

Don’t wait for power loss to reveal worn batteries—purchase this replacement UPS battery set for the APC BACK-UPS XS 800 (BX800) today and keep your systems protected.


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