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SigmasTek  |  SKU: BW-3693

APC Back-UPS RS 800VA BR800I UPS High Performance Replacement Battery Set

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

➤ Includes 2 brand new SigmasTek SP12-7.5HR batteries (12V 7.5AH)

➤ High rate discharge design for reliable UPS performance

➤ Valve regulated, spill-proof and maintenance-free build

➤ Low self-discharge extends battery life during storage

➤ Certified safety standards with 1 year manufacturer 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 Battery Set for APC Back-UPS RS 800VA BR800I (2 x SigmasTek SP12-7.5HR)

When your APC Back-UPS RS 800VA BR800I needs fresh batteries, trust this carefully matched replacement UPS battery set to bring back dependable performance. The two SigmasTek SP12-7.5HR cells are engineered for compatibility with the BR800I and built to deliver the surge and sustain power characteristics required by UPS units. Ideal for both home and small business backup systems, this pack emphasizes reliability and safety.

Key Specifications

  • Includes: 2 SigmasTek SP12-7.5HR batteries
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This long-lasting battery solution is intended for UPS environments where short bursts of high current are required. The high rate discharge design ensures your APC Back-UPS RS 800VA BR800I can supply the immediate power necessary to bridge outages and protect connected equipment. Low self-discharge helps maintain capacity during storage intervals so that batteries remain ready when needed.

Robust valve regulated, spill-proof construction enables maintenance-free operation and safer handling during replacement. High vibration resistance improves operational longevity in locations with movement or mechanical stress, while U.L. and CE certifications affirm compliance with industry safety standards. Each battery set is brand new and factory fresh, giving you predictable, repeatable performance from day one.

Recommended applications include Uninterruptible Power Supply (UPS) units such as the APC Back-UPS RS 800VA BR800I, emergency power systems, and battery-powered tools where immediate power delivery is essential. Our technical team personally tests each set to ensure they meet or exceed OEM specifications so you get a truly reliable replacement UPS battery.

Note: reuse your original cables and hardware to install these batteries. For assistance, contact our customer service at .

Ready to upgrade to a dependable, high-performance UPS battery for your APC Back-UPS RS 800VA BR800I? Order now and take advantage of fast processing and a 1 year warranty.


Payment & Security

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