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SigmasTek  |  SKU: BW-14503

Johnson Controls GC6120 Premium Replacement Replacement Battery

Sale price $16.99 USD Regular price $24.60
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) technology for enhanced performance

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

➤ U.L. recognized and CE certified for safety and reliability

➤ Brand new, factory fresh for guaranteed quality

➤ 1 year warranty ensures long-term peace of mind


📦🚀 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 | 12 Ah

Terminal Type

F1

Johnson Controls GC6120 Replacement Battery — Compatible with Johnson Controls GC6120

Replace your worn or aging power source with a reliable, high-performance replacement battery compatible with the Johnson Controls GC6120. This battery is engineered for consistent performance, dependable standby power, and trouble-free installation. Combining proven Absorbent Glass Mat (AGM) technology with a maintenance-free, spill-proof construction, the SigmasTek replacement for the GC6120 delivers the reliability you need for critical systems and day-to-day devices alike.

Key Specifications

  • Compatible Model: Johnson Controls GC6120
  • Brand: SigmasTek (replacement)
  • Voltage: 6 Volts
  • Capacity: 12 Ah
  • Terminal Type: F1
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This SigmasTek replacement battery for the GC6120 is designed to be a long-lasting battery option that brings exceptional durability and steady performance to a wide range of applications. The AGM construction ensures low internal resistance, leak-proof operation, and superior charge acceptance — making it an ideal high-performance battery for demanding environments.

Durability: The maintenance-free, spill-proof design and factory-fresh condition deliver dependable service life and reduced maintenance overhead. U.L. and CE certifications confirm the battery meets strict safety and quality standards.

Long Life and Reliability: Built for frequent recharge cycles and stable float charging, this SLA replacement battery offers reliable standby power for mission-critical systems. The sealed AGM design reduces the risk of corrosion and electrolyte loss, contributing to a longer usable service life.

High Performance and Versatility: As a high-performance battery, it supports consistent voltage output and fast recharge times. Typical applications include uninterruptible power supplies (UPS), emergency lighting and backup power systems, security alarms, medical equipment, and portable power tools where a 6V / 12Ah SLA is specified.

Installation is straightforward with the F1 terminal configuration, making this replacement battery an excellent choice for technicians and end users who need a drop-in, dependable solution for the Johnson Controls GC6120.

Ready to upgrade? Order this GC6120 replacement battery now for reliable power, backed by a 1 Year Warranty — a smart choice for anyone seeking a dependable, long-lasting battery solution.



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