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SigmasTek  |  SKU: BW-4931

Door King 6500 UPS Compatible Replacement Battery

Sale price $19.19 USD Regular price $27.82
Shipping calculated at checkout.

➤ Replacement battery for Door King 6500 UPS unit

➤ High rate discharge for reliable power output

➤ Valve regulated, spill-proof, and low self-discharge

➤ UL recognized and CE certified with 1-year warranty

➤ Factory fresh and OEM compatible


📦🚀 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 | 3.5 Ah

Terminal Type

F1

SigmasTek SP12-3.5 Replacement UPS Battery — Compatible with Door King 6500

This SigmasTek SP12-3.5 replacement UPS battery is engineered for reliable compatibility with the Door King 6500 Uninterruptible Power Supply (UPS) unit. Designed to deliver dependable performance under high-rate discharge conditions, this high-performance UPS battery provides the consistent power your Door King 6500 needs for critical applications. Please note you must use all existing cables and hardware from your original configuration to connect the new UPS battery. Our technicians test every unit to ensure it meets or exceeds OEM specifications, giving you a long-lasting battery that restores uptime and confidence.

Key Specifications

  • Battery Model: SigmasTek SP12-3.5
  • Voltage: 12 Volts
  • Capacity: 3.5 AH
  • Terminal Type: F1
  • Quantity: 1 (single replacement battery)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Safety/Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Door King 6500

Benefits

  • Durability and Reliability — Built with valve-regulated, spill-proof construction and high vibration resistance, this replacement UPS battery stands up to harsh operating conditions while protecting your Door King 6500 UPS.
  • Long Life and Low Maintenance — Low self-discharge characteristics and superior performance design help extend usable life and reduce the need for frequent replacements, making it a long-lasting battery solution for critical systems.
  • High Performance on Demand — The high rate discharge design supplies strong power output during short bursts of high load, making it an ideal high-performance UPS battery for equipment that requires immediate, reliable energy support.
  • Versatile Applications — Perfect for Uninterruptible Power Supply (UPS) units like the Door King 6500, emergency power systems, and battery powered tools where dependable backup power is essential.
  • Tested and Guaranteed — Each battery is personally tested by experienced staff to meet or exceed OEM specs and comes with a 1 year warranty for peace of mind.

Ready to restore reliable backup power to your Door King 6500? Buy this replacement UPS battery today and enjoy fast shipping on in-stock items, expert-tested quality, and a competitive price. Order now to secure a high-performance UPS battery and a long-lasting battery solution for your critical power needs.


Payment & Security

Payment methods

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