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SigmasTek  |  SKU: BW-13698

SigmasTek SP6-8.5 Compatible Replacement Battery

Sale price $17.99 USD Regular price $26.95
Shipping calculated at checkout.

➤ Genuine SigmasTek SP6-8.5 rechargeable SLA battery for reliable performance

➤ Absorbent Glass Mat (AGM) technology ensures leak-proof and maintenance-free use

➤ U.L. Recognized and CE Certified for safety and quality assurance

➤ Brand new, factory fresh with a 1-year warranty for peace of mind

➤ 100% compatible with SigmasTek SP6-8.5 model, guaranteed best price


📦🚀 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

6 Volts | 8.5 Ah

Terminal Type

F1

SigmasTek SP6-8.5 Replacement Battery — Compatible with SigmasTek SP6-8.5

Designed for perfect compatibility and dependable performance, the SigmasTek SP6-8.5 replacement battery delivers the reliability you expect from a genuine SigmasTek SP6-8.5 unit. This rechargeable Sealed Lead Acid (SLA) battery uses AGM technology to provide steady power, maintenance-free operation, and safe spill-proof construction. If you need a high-quality replacement battery that meets or exceeds OEM specifications, this SigmasTek SP6-8.5 is a high-performance battery choice for UPS systems, emergency power setups, and portable equipment.

Key Specifications

  • Model: SigmasTek SP6-8.5
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 6 Volts
  • Capacity: 8.5 Ah
  • Terminal Type: F1
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Brand: SigmasTek
  • Compatibility: Meets or exceeds OEM SLA battery specifications

Benefits

The SigmasTek SP6-8.5 is engineered for longevity and consistent output. As an AGM-based, maintenance-free, long-lasting battery, it resists vibration, minimizes internal corrosion, and delivers reliable charge acceptance and discharge characteristics. This long-lasting battery performs well under repeated charge/discharge cycles, making it a dependable option for devices that demand steady standby power and quick recovery after a power event.

Durability is built into the design — sealed construction prevents leaks and reduces the need for maintenance, while U.L. and CE certifications confirm safe, reliable manufacturing standards. Whether you are replacing an aging unit or stocking a critical spare, this high-performance battery maintains consistent voltage under load and offers surge resilience for brief power interruptions.

Typical applications include UPS systems, emergency lighting and backup power, alarm systems, medical equipment, portable tools, and other small equipment requiring a reliable 6V power source. The SigmasTek SP6-8.5 replacement battery is ideal when you need a trustworthy spare that restores original system performance quickly.

Ready to upgrade to a proven replacement battery? Add the SigmasTek SP6-8.5 to your cart now for a reliable, high-performance battery backed by a 1-year warranty and guaranteed compatibility.


Payment & Security

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