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SigmasTek  |  SKU: BW-6382

ADT Security 420615 High Performance Alarm Replacement Battery

Sale price $60.75 USD Regular price $73.35
Shipping calculated at checkout.

➤ Compatible replacement for ADT Security 420615 alarm battery

➤ Maintenance-free AGM technology with spill-proof design

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

➤ Brand new, factory fresh with a 1-year warranty

➤ Ideal for access control, burglar, home alarms, and security systems


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement ADT Security 420615 Battery — Compatible with ADT Security 420615

This replacement battery for the ADT Security 420615 alarm system is engineered to provide reliable, maintenance-free standby power. As a Rechargeable Sealed Lead Acid (SLA) battery featuring Absorbent Glass Mat (AGM) technology, it offers spill-proof safety and stable performance under load. Designed to meet or exceed OEM SLA battery specifications, this high-performance battery is an excellent option when you need a long-lasting battery to maintain the protection and responsiveness of your ADT Security 420615 system.

Key Specifications

  • Model: ADT Security 420615
  • Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design with Spill Proof Construction
  • Safety & Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Statement: Meets or exceeds the OEM SLA battery specifications
  • Applications: Access Control Systems, Home Alarm Systems, Burglar Alarm Systems, Security Systems, Power Supplies
  • Voltage: 12 Volts
  • Amp Hours: 18 Ah
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek

Benefits

  • Robust construction: The AGM and sealed design offer strong resistance to vibration and leakage, ensuring the battery performs reliably over time.
  • Consistent long life: This long-lasting battery holds charge well in standby scenarios, reducing the need for frequent replacements in alarm and security systems.
  • High-performance output: Stable voltage delivery and reliable recharge characteristics make this battery ideal for sensitive electronics in alarm panels and sensors.
  • Multi-use capability: While optimized for ADT security gear, it is also well-suited for UPS backup, emergency power supplies, and portable tools that accept SLA batteries.
  • Safety and compliance: U.L. recognition and CE certification ensure the battery meets common regulatory standards for installation and operation.
  • Low maintenance: The sealed, maintenance-free design simplifies ownership and reduces the risk of handling spills or electrolyte maintenance.

Ensure your ADT Security 420615 system remains protected with this OEM-compatible replacement battery. Click to purchase a reliable, high-performance battery that restores backup power and guards your security system against outages.


Payment & Security

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