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SigmasTek  |  SKU: BW-2404

Dell K806N 36V External Battery Module UPS High Performance Compatible Replacement Battery Set

Sale price $148.99 USD Regular price $217.36
Shipping calculated at checkout.

➤ Set of 6 SigmasTek SP12-9HR batteries (12V 9AH), brand new

➤ High rate discharge suitable for Dell K806N UPS units

➤ Spill-proof valve regulated design minimizes maintenance

➤ Low self-discharge extends shelf life

➤ Certified quality with 1 year warranty included


📦🚀 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 | 9 AH

Terminal Type

F2

Replacement Battery Set for Dell K806N

Keep your Dell K806N UPS running at peak performance with this replacement UPS battery set, which includes six SigmasTek SP12-9HR batteries (12 Volts, 9 AH). Specifically selected for compatibility with the Dell K806N, this pack provides the dependable charge and quick discharge response needed for seamless transition to battery power. These batteries are ideal for users who require a high-performance UPS battery that balances immediate power output with long-term reliability.

Key Specifications

  • Battery model: SigmasTek SP12-9HR
  • Quantity: 6 batteries per set
  • Voltage: 12 Volts
  • Amp-hours: 9 AH
  • 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: Requires use of all existing cables and hardware from original configuration to connect new UPS batteries

Benefits

This replacement battery set is built for durability and dependable service in environments that rely on Dell K806N UPS units. The high rate discharge design ensures the system can handle sudden load demands and short-duration high-power events, while the valve regulated, spill proof construction enhances safety during installation and operation. Low self-discharge means the batteries remain ready after storage, minimizing maintenance checks and replacement frequency.

The pack’s high vibration resistance and U.L./CE certifications make it suitable for data centers, network closets, and mobile setups that may experience mechanical stress. As a long-lasting battery option, these factory fresh SigmasTek cells are tested to meet or exceed OEM performance expectations. Use this set for Uninterruptible Power Supply (UPS) units, emergency power applications, and compatible battery-powered tools where reliable backup power is critical.

Ready to replace your Dell K806N batteries? Order this high-performance, long-lasting battery kit now and enjoy fast shipping on in-stock items. Need guidance? Contact our customer support at or e-mail us — our specialists can help ensure the correct installation and fit. Purchase today to secure reliable backup power.


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