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SigmasTek  |  SKU: BW-13263
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MK Battery 8G24-UT GEL High Performance UPS Replacement

Sale price $201.49 USD Regular price $266.18
Shipping calculated at checkout.
Pure Gel Technology ensures superior deep cycle performance
Durable ABS (UL94 V-0) case offers enhanced safety and protection
Low self-discharge rate of less than 2% per month for longer shelf life
Versatile use in marine, solar, electric wheelchair, and scooter applications
Backed by a 1-year warranty and UL listing for reliable quality and safety
In Stock

Fast Shipping
30-Day Easy Returns
OEM Fit Verified
📦 Fast Shipping | ↩️ 30-Day Returns | ✅ OEM Fit Verified

Key Specifications

Brand Replacement
MK Battery 8G24-UT
Volts & Amps
12 Volts | 75 AH
Terminal Type
Nut & Bolt
Technical Specifications
MK Battery 8G24-UT GEL High Performance UPS Replacement
Product Information
Amp Hours75 AH
Voltage12 Volts
Terminal TypeNut & Bolt
TypeHeavy Duty Batteries
Length (in.)10.2
Width (in.)6.61
Height (in.)8.19
Weight (lb.)52.48
Brand ReplacementMK Battery 8G24-UT
ManufacturerSigmasTek
Warranty & Return Policy
Warranty 12 Months
Return Policy 30 Days
Last Updated: 10 March 2026

⚠️ 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).


Replacement MK Battery 8G24-UT GEL Battery (Compatible with MK Battery 8G24-UT)

This replacement MK Battery 8G24-UT GEL battery is engineered for reliable compatibility with the MK Battery 8G24-UT model and delivers consistent performance across deep cycle and standby applications. Designed with pure gel technology and an ABS (UL94 V-0) case, this high-performance battery offers dependable, maintenance-free operation whether used in marine, solar, mobility devices or other demanding environments. If you need a long-lasting battery that meets or exceeds OEM GEL specifications, this replacement battery is built to provide steady power and dependable life.

Key Specifications

  • Model Compatibility: MK Battery 8G24-UT (replacement)
  • Technology: Pure Gel Technology (Not to Be Mistaken with Hybrid Gel)
  • Case: ABS (UL94 V-0) Case
  • Self-discharge Rate: Less than 2% Per Month
  • Expected Life in Standby Use: 3 - 5 years
  • Condition: Brand New and Factory Fresh
  • Warranty: 1 Year Warranty
  • Safety Listing: UL Listed
  • Orientation: Can be operated in any orientation
  • Storage: Can be stored for up to 9 months at 25°C (77°F) with a recommended freshening charge
  • Voltage: 12 Volts
  • Capacity: 75 AH
  • Terminal Type: Nut & Bolt
  • Replacement Brand / Supplier: SigmasTek

Benefits

  • Durability: The pure gel construction and UL94 V-0 ABS case offer robust resistance to vibration and environment exposure for extended service life.
  • Long Life: With a low self-discharge rate of less than 2% per month and an expected standby life of 3–5 years, this replacement battery is a long-lasting battery choice for infrequent-use systems and stored equipment.
  • High Performance: Gel technology provides stable discharge characteristics and improved deep-cycle performance for repeated use in cycle applications.
  • Maintenance-Free: Factory-sealed, brand new and maintenance-free — no topping up required and minimal upkeep over life of battery.
  • Versatile Applications: Commonly used in marine applications, solar systems, electric wheelchairs, scooters — and also suitable for UPS, emergency power systems, and portable power tools where stable, reliable power is required.
  • Flexible Installation: Operable in any orientation and safe for long storage with occasional freshening charges, making it convenient for varied installations and backup use.

Choose this replacement MK Battery 8G24-UT GEL battery for a proven combination of reliability and value. If you want a high-performance battery that’s ready to install and backed by a warranty, order your replacement battery today and enjoy fast shipping on in-stock items.



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