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SigmasTek  |  SKU: BW-10412

BCI Group Size 8D High Performance Replacement Battery

Sale price $486.99 USD Regular price $1,074.29
Shipping calculated at checkout.

➤ Genuine BCI Group Size 8D SLA battery for perfect OEM compatibility

➤ Advanced Absorbent Glass Mat (AGM) technology for enhanced performance

➤ Maintenance-free with spill-proof design for safety and convenience

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

➤ Brand new, factory fresh with a 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 | 250 Ah

Terminal Type

Internal Thread

SigmasTek 12V 250Ah Replacement Battery for BCI Group Size 8D BCI Group

Designed as a direct, 100% compatible replacement battery for BCI Group Size 8D BCI Group equipment, this SigmasTek 12V 250Ah sealed lead acid battery delivers reliable performance and proven durability. Built with AGM technology and a maintenance-free, spill-proof construction, it provides consistent power output for demanding applications where uptime and dependability matter. If you need a high-performance battery and a long-lasting battery solution that meets or exceeds OEM SLA specifications, this internal-thread SigmasTek unit is an ideal replacement battery for your BCI Group Size 8D system.

Key Specifications

  • Brand: SigmasTek
  • Compatible Model: BCI Group Size 8D BCI Group
  • Voltage: 12 Volts
  • Capacity: 250 Ah
  • Battery Type: Sealed Lead Acid (SLA), Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free, Spill Proof Construction
  • Terminal Type: Internal Thread
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This SigmasTek replacement battery combines rugged construction and advanced AGM technology to provide exceptional cycle life and reliable standby performance. The maintenance-free, spill-proof design reduces service needs and enables safe installation in varied orientations. As a high-performance battery, it delivers strong discharge capability and stable voltage under load, making it suitable for heavy-duty usage and systems that demand continuous reliable power.

The long-lasting battery chemistry and factory-fresh condition mean predictable run times and fewer replacements over the life of your equipment. Typical applications include UPS systems, emergency power backup, telecommunications, industrial equipment, auxiliary power systems, and other high-drain uses where BCI Group Size 8D compatibility is required. The internal thread terminal provides a secure connection for installations that require threaded fasteners.

Safety and compliance are built in with U.L. recognition and CE certification, giving you confidence in both performance and regulatory standing. Backed by a 1 year warranty and performance guarantees, this unit is an excellent choice when you need a dependable, heavy-capacity replacement battery for critical power systems.

Ready to upgrade your BCI Group Size 8D system? Order this SigmasTek 12V 250Ah high-performance, long-lasting replacement battery today to ensure continuous power and dependable operation.


Payment & Security

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