BikeMaster Trugel Battery MG7B-4 - 780539

The BikeMaster TruGel Battery MG7B-4 (part number 780539) is a gel electrolyte powersports battery engineered for motorcycles, ATVs, and sport bikes that demand reliable starting power and long service life. Designed as a direct-fit replacement across a wide range of popular makes and models — including Yamaha, Suzuki, Ducati, Kawasaki, Can-Am, and Triumph — this sealed gel battery offers meaningful performance advantages over conventional flooded wet batteries. If you've been hunting for a durable, maintenance-friendly powersports battery replacement, the BikeMaster TruGel MG7B-4 deserves a close look.

Key Features & Benefits

• Gel electrolyte technology with twice the lifespan of a wet battery: The TruGel's gel-suspended electrolyte resists the degradation that shortens the life of standard flooded batteries, meaning fewer replacements and better long-term value.
• Superior vibration and impact resistance: The gel construction absorbs vibration and shock that can crack plates and damage wet batteries — a critical advantage for off-road applications like the Suzuki DR-Z400 or Yamaha YFZ450 where trail vibration is constant.
• Install at any angle: Because the electrolyte is suspended in gel rather than liquid, this battery can be mounted in non-standard orientations without risk of leakage — giving builders and custom installers flexibility that a wet battery simply can't match.
• Leak and spill proof: The sealed construction means no acid spills during installation or in the event of a tip-over, protecting your bike's frame and nearby components.
• Will not sulfate like a wet battery: Sulfation is one of the primary failure modes of conventional lead-acid batteries during storage; the TruGel chemistry resists this, making it a smart choice for seasonal riders or bikes that sit between riding seasons.
• Longer shelf and in-bike storage life: Whether sitting on a dealer's shelf or in your garage over winter, the MG7B-4 holds its charge longer than a comparable wet battery.
• Performs better across a wider temperature range: The gel formulation handles both lower and higher temperature extremes better than wet batteries — relevant for year-round riders and riders in climates with harsh winters or hot summers.
• Two-year manufacturer's warranty: BikeMaster backs the TruGel battery with a two-year warranty, providing peace of mind for your investment.

Specifications

• Part Number: 780539
• Battery Model: MG7B-4
• UPC: 887337003771
• Dimensions: 150mm L × 65mm W × 92mm H (approximately 5.9" × 2.6" × 3.6")
• Cold Cranking Amps (CCA): 145
• Battery Type: Gel electrolyte (sealed, maintenance-free)
• Warranty: Two years (manufacturer)
• Storage Note: Requires charging during prolonged storage periods

Fitment

The BikeMaster TruGel MG7B-4 is a verified fit for the following vehicles. Always confirm your specific model year and trim against the list below before ordering:

• 2008 Can-Am DS 450 X
• 2009–2015 Can-Am DS 450 X mx
• 2009–2015 Can-Am DS 450 X xc
• 2015–2017 Ducati 1299 Panigale S
• 2016–2019 Ducati 959 Panigale
• 2018–2021 Ducati Panigale V4
• 2003 Kawasaki KLX400R
• 2000–2018 Suzuki DR-Z400E
• 2000–2020 Suzuki DR-Z400S
• 2005–2020 Suzuki DR-Z400SM
• 2006–2010 Triumph Daytona 675
• 1999–2004 Yamaha TTR225
• 1999–2006 Yamaha TTR250
• 2004–2013 Yamaha YFZ450
• 2009–2020 Yamaha YW125 Zuma 125

Not sure if this battery fits your specific make, model, and year? Use our fitment help tool or contact our team directly — we're happy to verify compatibility before you order.

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum purchase required.
• Affirm Financing: Break your purchase into manageable payments with Affirm financing available at checkout.
• Expert Fitment Support: Our team has served 10,000+ customers and is available to help you verify that this battery is the right fit for your powersports vehicle. Call us at 813-535-5801 or reach out via email.
• Regularly Stocked: The MG7B-4 780539 is a regularly stocked product at ThreePiece.us, so you're not waiting months for a special order.
• Price Match Guarantee: Found it for less somewhere else? Ask us about our price match policy.

Frequently Asked Questions

Q: Does this battery come pre-charged and ready to install?
A: The BikeMaster TruGel MG7B-4 is a sealed gel battery, but BikeMaster notes that it requires charging during prolonged storage periods. It's always a good practice to verify charge level before installation, especially if the battery has been sitting on a shelf for an extended time.

Q: Can I mount this battery sideways or at an angle?
A: Yes. Because the electrolyte is suspended in gel rather than free liquid, the MG7B-4 can be installed at virtually any angle without risk of leakage. This makes it a popular choice for custom builds or applications with tight or unconventional battery box orientations.

Q: How does the TruGel battery hold up during winter storage?
A: Better than a standard wet battery. The gel chemistry resists sulfation — one of the main ways batteries fail during long storage — and provides a longer shelf and in-bike storage life. BikeMaster does recommend charging the battery if storing for extended periods.

Q: What is the warranty on the BikeMaster TruGel MG7B-4?
A: BikeMaster provides a two-year manufacturer's warranty on the TruGel battery line, including the MG7B-4.