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SigmasTek  |  SKU: BW-15947

SEC Microlyte SEC12-3.3 Compatible Replacement Battery

Sale price $14.99 USD Regular price $28.46
Shipping calculated at checkout.

➤ Compatible replacement for SEC Microlyte SEC12-3.3 model

➤ Utilizes 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

➤ Comes brand new with a 1-year warranty for 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

12 Volts | 3.5 Ah

Terminal Type

F2

SEC Microlyte SEC12-3.3 Replacement Battery — Compatible with SEC Microlyte SEC12-3.3

The SEC Microlyte SEC12-3.3 replacement battery is an OEM-compatible SLA solution designed to restore reliable power for devices requiring the SEC12-3.3 model. Featuring AGM technology and a maintenance-free, spill-proof design, this replacement battery delivers steady, dependable performance for backup power, security systems, and portable equipment. It’s a long-lasting battery option that meets industry safety standards and arrives factory-fresh with a warranty for your protection.

Key Specifications

  • Model: SEC Microlyte SEC12-3.3 (replacement)
  • Voltage: 12 Volts
  • Capacity: 3.5 Ah
  • Terminal Type: F2
  • 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
  • Brand references in listing: SEC Microlyte / SigmasTek

Benefits

Engineered for longevity and dependable service, this replacement battery offers robust durability through sealed AGM construction that reduces the risk of leaks and extends operational life. The maintenance-free characteristic means you can install and forget—no watering or regular servicing—making this a convenient long-lasting battery for both professionals and consumers.

As a high-performance battery, the SEC Microlyte SEC12-3.3 replacement provides consistent voltage under load and reliable recovery after discharge cycles. It performs well in UPS systems, emergency power backups, security and alarm panels, telecom gear, and light power-tool applications where compact, dependable SLA power is required.

Compliance with U.L. recognition and CE certification ensures the battery meets established safety and manufacturing standards. Arriving brand new and backed by a 1 Year Warranty, this unit gives you confidence in installation and ongoing operation.

Upgrade to the SEC Microlyte SEC12-3.3 replacement battery now to secure a high-performance, long-lasting battery that fits your device and restores dependable power. Buy today for immediate shipping and reliable service.



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