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SigmasTek  |  SKU: BW-13443

12V 2.9Ah SLA Compatible Replacement Battery

Sale price $24.26 USD Regular price $29.37
Shipping calculated at checkout.

➤ High performance and high discharge design for reliable power delivery

➤ Maintenance-free and spill-proof AGM technology for safety and convenience

➤ Wide operating temperature range ensures functionality in diverse environments

➤ Guaranteed compatibility with original battery specifications for easy replacement

➤ 1-year warranty provides peace of mind and quality assurance


📦🚀 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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Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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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 | 2.9 AH

Terminal Type

F1

12V 2.9AH SLA Battery - Compatible with original 12V 2.9AH models

Upgrade your device with this reliable 12V 2.9AH SLA replacement battery engineered for compatibility, dependable performance, and lasting reliability. Designed to meet or exceed original manufacturer specifications, this high-performance battery delivers consistent power for critical applications while offering the peace of mind you expect from a quality long-lasting battery. Whether you are restoring backup power to a medical device, maintaining alarm systems, or replacing the battery in portable equipment, this unit is built to perform under demanding conditions.

Key Specifications

  • Volts: 12 V
  • Amp Hours: 2.9 AH
  • Terminal: F1
  • Weight: 2.3 Lbs
  • Length: 7 (units as provided)
  • Width: 1.38 (units as provided)
  • Height: 2.36 (units as provided)
  • Chemistry / Technology: SLA / AGM
  • Features: Maintenance-free, Spill Proof
  • Warranty: 1-year Warranty
  • Shipping Methods: UPS Ground and USPS
  • Shipping: Ships in 1 business day for in-stock items

Benefits

This replacement battery delivers robust durability and a long expected service life thanks to its SLA chemistry and AGM construction. The high discharge design supports devices that demand quick bursts of power while maintaining stable output during standby and float conditions. Because it is maintenance-free and spill-proof, this long-lasting battery is safe to install and use in enclosed equipment without the need for regular service. The wide operating temperature range ensures dependable operation in varied environments, from server rooms to outdoor enclosures that experience temperature swings.

As a high-performance battery, it is well-suited for a broad range of applications including UPS systems, emergency power backups, security and alarm systems, medical devices, and portable tools. The F1 terminal makes installation straightforward for compatible devices—simply install in the original configuration and reuse the existing cables. For commercial or large-scale deployments, quantity discounts are available through Batterysharks.com by submitting an RFQ.

If you need assistance confirming compatibility or dimensions, our customer service team is available via email, chat, or toll-free at . We recommend checking your existing battery for dimensions prior to ordering as manufacturers may change requirements without notice.

Ready to replace your aging battery? Order this high-performance, long-lasting replacement battery now and restore reliable power to your equipment with confidence.


Payment & Security

Payment methods

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