For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-16638

Sunnyway SWE12140 High Performance Replacement Battery

Sale price $44.99 USD Regular price $66.75
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) Technology for enhanced performance

➤ Maintenance-Free Design with Spill Proof Construction for easy use

➤ U.L. Recognized and CE Certified ensuring safety and quality

➤ Brand New, Factory Fresh for reliable longevity

➤ 1 Year Warranty for peace of mind and guaranteed durability


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert Help

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.
POST YOUR IMAGE

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 | 15 Ah

Terminal Type

F2

Sunnyway SWE12140 Replacement Battery — Compatible with Sunnyway SWE12140

The Sunnyway SWE12140 replacement battery delivers dependable compatibility, consistent performance, and proven reliability for devices that require a trusted 12V power source. Designed to meet or exceed OEM SLA specifications, this replacement battery is a cost-effective way to restore backup power, ensure uninterrupted operation, and maintain peak performance in a range of applications. If you need a high-quality, high-performance battery that’s also a long-lasting battery solution for your Sunnyway SWE12140 device, this AGM-based sealed lead acid option is factory fresh and ready to install.

Key Specifications

  • Model: Sunnyway SWE12140
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 15 Ah
  • Terminal: F2
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: Sunnyway
  • Vendor/Listing: SigmasTek

Benefits

This replacement battery uses AGM technology to provide a durable, vibration-resistant internal structure and excellent charge acceptance. As a maintenance-free design with spill-proof construction, it reduces upkeep and eliminates the need for regular electrolyte checks, making it ideal for both professional and consumer settings. The 12 Volt, 15 Ah rating offers balanced energy capacity for extended run-times, while the F2 terminal provides standard, reliable connectivity for many UPS units, security systems, and other standby power applications.

Durability: Constructed to withstand repeated charge and discharge cycles, this battery is built for robust, long-term use in critical systems. Long life: AGM chemistry delivers lower self-discharge and consistent performance over time, contributing to a long-lasting battery life when properly maintained. High performance: Designed to meet or exceed OEM standards, the Sunnyway SWE12140 replacement battery supports fast recharge, steady voltage delivery, and dependable starting and standby power in both daily and emergency scenarios.

Typical applications include UPS and backup power systems, emergency lighting and alarm systems, medical support equipment, security and surveillance devices, portable power tools, and other devices requiring a sealed 12V SLA battery. This high-performance battery is an excellent replacement for worn or aging batteries where reliability is essential.

Ready to upgrade to a reliable, long-lasting replacement battery for your Sunnyway SWE12140? Order now to secure a brand new, factory fresh unit backed by a 1 Year Warranty and fast shipping.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.