Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-14476

MK ES12-6-F1 High Performance Replacement Battery 4.08 lb

18% off
Sale price $30.99 USD Regular price $37.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free and spill-proof design for hassle-free use
U.L. Recognized and CE Certified for safety and quality assurance
Brand new, factory fresh for reliable performance
100% compatible with MK Battery ES12-6-F1 model, backed by a 1-year warranty
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician 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 BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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.


Volts & Amps

6 Volts | 12 Ah

Terminal Type

F1

MK Battery ES12-6-F1 Replacement Battery — Compatible with MK Battery ES12-6-F1

The MK Battery ES12-6-F1 replacement battery delivers a precise fit and dependable power for systems designed around the MK Battery ES12-6-F1 model. Engineered with Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof construction, this high-performance battery provides the reliable, long-lasting battery performance required for backup systems, emergency power, and other critical applications. Count on consistent, safe operation and OEM-level compatibility.

Key Specifications

  • Compatible Model: MK Battery ES12-6-F1
  • Replacement Brand: SigmasTek
  • OEM Brand: MK Battery
  • Voltage: 6 Volts
  • Capacity: 12 Ah
  • Terminal Type: F1
  • 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

Benefits

This ES12-6-F1 replacement battery is a high-performance battery designed for robust daily use and repeated cycling. AGM construction ensures low internal resistance, reliable charge acceptance, and long shelf life. The maintenance-free, sealed design reduces service requirements and eliminates the risk of acid spills, providing safe and clean operation in enclosures or mobile setups.

As a long-lasting battery solution, the MK Battery ES12-6-F1 replacement supports applications such as UPS backup, emergency and standby power, alarm systems, and portable or stationary tools where sealed lead acid batteries are specified. Its 6V 12Ah capacity with F1 terminal provides a direct replacement for devices expecting the ES12-6-F1 footprint and connection type.

Certified by U.L. and CE for safety and manufactured brand new and factory fresh, this replacement battery gives you confidence in both performance and compliance. The included 1 Year Warranty further protects your investment, ensuring replacement or support if any issues arise during normal use.

Ready to upgrade or replace your battery? Purchase the MK Battery ES12-6-F1 replacement battery now for a dependable, high-performance, long-lasting battery that restores system reliability quickly and affordably.

Technical Specifications

Voltage6 Volts
Amp Hours12 Ah
Terminal TypeF1
Length (in.)5.95
Width (in.)2.0
Height (in.)3.7
Weight (lb.)4.08

Product Highlights

  • Brand Replacement : MK Battery ES12-6-F1
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.