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SigmasTek  |  SKU: BW-16482

High Performance 12 Volt 18 Amp Deep Cycle Replacement Battery

Sale price $38.99 USD Regular price $80.10
Shipping calculated at checkout.

➤ Meets or exceeds OEM SLA battery specifications for reliable performance

➤ Brand new, factory fresh, and high quality for long-lasting use

➤ Maintenance-free, sealed lead acid design with non-spillable safety

➤ Versatile use in emergency lighting, security alarms, medical equipment, and more

➤ Includes minimum one year warranty and is UL listed for guaranteed safety


📦🚀 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

12 Volt 18 Amp Deep Cycle Replacement Battery — SigmasTek 12V 18Ah

The 12 Volt 18 Amp Deep Cycle replacement battery is a versatile, Rechargeable Sealed Lead Acid (SLA) unit designed for both cycle and standby duties. Built brand new and factory fresh, this deep cycle battery delivers consistent, reliable power for emergency systems, security, medical devices, and consumer applications. With maintenance-free, non-spillable construction and UL listing, this battery is a dependable, long-lasting battery option that meets OEM SLA specifications and comes backed by a minimum one year warranty.

Key Specifications

  • Model: 12 Volt 18 Amp Deep Cycle Battery (Replacement)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Designation: Deep Cycle
  • Voltage: 12 Volt
  • Capacity: 18 Amp (18 Ah)
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Design: Maintenance-Free, Non-Spillable
  • Orientation: Can operate in any orientation
  • Life Expectancy: 3-5 years in standby use (as specified)
  • Certifications: UL Listed
  • Condition: Brand New, Factory Fresh
  • Warranty: Minimum of 1 Year Warranty
  • Shipping: In stock and ships within 24 hours (as specified)
  • Compatibility: Meets or exceeds OEM SLA battery specifications

Benefits

  • Durability & Reliability: Deep cycle design with sealed, non-spillable construction allows dependable performance across a wide range of applications and orientations.
  • Long-Lasting Battery Life: With a stated life expectancy of 3–5 years in standby use, this battery provides longevity for backup systems and reduces the frequency of replacements.
  • High-Performance Battery: Designed for both cycle and standby operation, the battery provides stable output and reliable recharge characteristics—ideal for high-demand or intermittent loads.
  • Safety & Certification: UL listing and factory-fresh condition provide confidence in product safety and quality standards.
  • Wide Application Range: Specifically recommended for emergency lighting, security alarms, fire alarms, home & garden equipment, consumer electronics, and medical equipment—making it a versatile replacement battery.
  • Easy Support & Purchase Experience: Backed by knowledgeable customer service and quick shipping; a practical choice when you need a prompt replacement that performs.

When you need a dependable 12 Volt 18 Amp deep cycle replacement battery, this SigmasTek unit delivers a powerful blend of safety, durability, and long-term value. It is a high-performance battery engineered for demanding standby and cycling tasks, and it comes with a one-year warranty to protect your investment.

Buy your 12 Volt 18 Amp Deep Cycle replacement battery today—secure a long-lasting battery that ships quickly and restores reliable power to your critical systems.


Payment & Security

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