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SigmasTek  |  SKU: BW-14578

Alexander G6120 Compatible Replacement Battery

Sale price $20.32 USD Regular price $24.60
Shipping calculated at checkout.

➤ Compatible replacement for Alexander G6120 model

➤ Uses Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free and spill-proof design for hassle-free use

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

➤ Includes 1-year warranty and 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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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

6 Volts | 12 Ah

Terminal Type

F1

Alexander G6120 Battery (Replacement) — Compatible with Alexander G6120

Designed specifically as a direct replacement for the Alexander G6120, this Alexander G6120 replacement battery delivers reliable compatibility, consistent performance, and long-term reliability for your equipment. Engineered with Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof construction, this high-quality unit gives you trusted power whether you're restoring backup capacity or replacing a worn-out pack. If you need a dependable, high-performance battery solution for critical systems, the Alexander G6120 model from SigmasTek offers the performance and peace of mind you're looking for.

Key Specifications

  • Brand: SigmasTek
  • Model Compatibility: Alexander G6120
  • Voltage: 6 Volts
  • Capacity: 12 Ah
  • Terminal Type: F1
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This Alexander G6120 replacement battery is built for durability and long service life. AGM construction provides a rugged internal structure that resists vibration and delivers consistent performance over repeated charge/discharge cycles, making it a long-lasting battery choice for both standby and cyclic applications. The maintenance-free, spill-proof design eliminates the need for topping up electrolyte, reducing upkeep and making installation safe and straightforward.

As a high-performance battery, the Alexander G6120 offers dependable starting and reserve capacity for a wide range of uses. The sealed SLA format maintains stable voltage under load and recovers efficiently after discharge — ideal attributes for UPS systems, emergency power needs, alarm and security systems, medical devices, and general-purpose power tools and instrumentation. Whether you’re using the unit in an uninterruptible power supply to protect sensitive electronics or as a replacement pack in a portable tool or device, this SigmasTek battery delivers dependable output when it matters most.

Certification by U.L. and CE assures compliance with industry safety and quality standards, and the brand new, factory-fresh condition plus a 1 year warranty ensures you’re covered from day one. With straightforward compatibility and proven AGM technology, this Alexander G6120 is a trusted, long-lasting battery option for both residential and commercial requirements.

Ready to upgrade? Buy this Alexander G6120 replacement battery now and ensure uninterrupted power and reliable performance for your devices. Order today to secure fast shipping and the guaranteed compatibility of a high-performance battery.


Payment & Security

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