Twin Power GYZ20HL Factory Activated AGM Premium Battery
The Ultimate AGM Upgrade for American V-Twin Motorcycles
When it comes to starting a large-displacement Harley-Davidson, not all batteries are created equal. The Twin Power GYZ20HL Factory Activated AGM Premium Battery represents the pinnacle of lead-acid technology. Part of the exclusive Premium MAX series, this battery is engineered to provide more “punch” than standard replacement units. With a rating of 320 Cold Cranking Amps (CCA), the GYZ20HL ensures your V-Twin engine fires up reliably, whether you are dealing with a chilly morning start or the high-compression demands of a hot engine restart at the gas pump.
Advanced AGM Technology & Maintenance-Free Design
The “GYZ” designation signifies a higher level of performance through Absorbed Glass Mat (AGM) technology. Unlike traditional flooded batteries, the electrolyte in the Twin Power GYZ20HL is absorbed into specialized glass mat separators, making the unit completely spill-proof and leak-proof. This design also allows for a Factory Activated status—meaning the battery is filled, sealed, and charged at the factory. It arrives ready to install immediately, eliminating the need for messy acid handling or initial charging, though a freshening charge is always recommended for peak longevity.
Engineered for High Accessory Loads
Modern touring bikes are accessory-heavy, often equipped with GPS units, upgraded audio systems, and heated gear. The Twin Power GYZ20HL is designed with a high 20Ah capacity and improved charge recovery capabilities. This means it can support “parasitic loads” and power-hungry add-ons without sacrificing the reserve power needed for your next start. Its superior grid components and enhanced active materials provide a longer cycle life and better deep-discharge recovery compared to standard AGM batteries, making it the ideal choice for long-distance cruisers.
Patent-Pending Conductivity & Vibration Resistance
Vibration is the number one killer of motorcycle batteries, especially on a thumping V-Twin. The GYZ20HL is built with an extreme vibration-resistant case and reinforced internal plates to prevent cell damage on the road. A standout feature is the patent-pending embedded brass nuts within the heavy-duty terminals. Brass is up to 50% more conductive than the stainless steel used in cheaper batteries, ensuring a cleaner electrical path and more efficient power delivery to your starter motor. These flush-mounted terminals also offer a secure, rattle-free connection that resists the loosening effects of engine pulses.
Perfect OEM Fitment and Reliability
Fitment is seamless with the Twin Power GYZ20HL. Designed to replace the OEM 65989-97A battery, its dimensions (6.875″ L x 3.43″ W x 6.125″ H) ensure a direct “drop-in” installation for Softail, Dyna, and Sportster models. Proudly reflecting Twin Power’s commitment to quality, this battery offers a longer shelf life and higher durability than entry-level alternatives. Whether you are restoring a classic or maintaining a late-model Milwaukee-Eight, the GYZ20HL provides the dependable starting power and “Made for Harley” ruggedness you expect.
Note: To maximize the lifespan of your AGM battery, it is recommended to use an AGM-optimized smart tender during long periods of inactivity.
Twin Power GYZ20HL Factory Activated AGM Premium Battery
Features:
AGM (Absorbed Glass Mat) separators with superior grid and component designs
Improved charge recovery capability from a deeply discharged condition
Longer shelf life
Filled, sealed and charged at the factory
Extreme vibration resistance
Heavy-duty, flushed mount terminals
Higher cold cranking amps and includes threaded post
One-year manufacturer’s warranty
| Product Style | AmericanV-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| GYZ20HL | 32629 | 211-152 | 7024 | TPWM720GH/485022 | In Stock: Ships within 24 hours |
- Harley Davidson
- Dyna Convertible FXDS 1994-2000
- Dyna Fat Bob CVO/SE FXDFSE 2009, 2010
- Dyna Fat Bob FXDF 2008-2017
- Dyna Glide Custom FXDC 1992
- Dyna Glide Daytona FXDB-D 1992
- Dyna Glide Sturgis FXDB-S 1991
- Dyna Low Rider FXDL/I 1993-2017
- Dyna Low Rider S FXDLS 2016, 2017
- Dyna Street Bob FXDB/I 2006-2017
- Dyna Super Glide Custom FXDC/I 2005-2014
- Dyna Super Glide CVO/SE FXDSE 2007
- Dyna Super Glide CVO/SE FXDSE2 2008
- Dyna Super Glide FXD/I 1995-2010
- Dyna Super Glide Sport FXDX 1999-2005
- Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
- Dyna Switchback FLD 2012, 2013, 2014, 2015, 2016
- Dyna Wide Glide CVO/SE FXDWG2 2001
- Dyna Wide Glide CVO/SE FXDWG3 2002
- Dyna Wide Glide FXDWG/I 1993-2017
- Softail Bad Boy Springer FXSTSB 1995, 1996, 1997
- Softail Blackline FXS 2011, 2012, 2013
- Softail Breakout 114 FXBRS 2018, 2019, 2020
- Softail Breakout 117 FXBR 2023, 2024, 2025, 2026
- Softail Breakout CVO/SE FXSBSE 2013
- Softail Breakout FXBR 2018, 2019
- Softail Breakout FXSB 2013, 2014, 2015, 2016, 2017
- Softail Convertible CVO/SE FLSTSE 2010
- Softail Convertible CVO/SE FLSTSE2 2011
- Softail Convertible CVO/SE FLSTSE3 2012
- Softail Cross Bones Springer FLSTSB 2008, 2009, 2010, 2011
- Softail Custom FXSTC/I 1991-2010
- Softail Deluxe FLDE 2018, 2019, 2020
- Softail Deluxe FLSTN/I 2005-2017
- Softail Deuce CVO/SE FXSTDSE 2003
- Softail Deuce CVO/SE FXSTDSE2 2004
- Softail Deuce FXSTD/I 1999-2007
- Softail Fat Bob 114 FXFBS 2018-2023
- Softail Fat Bob FXFB 2018, 2019
- Softail Fat Boy 114 FLFBS 2018-2024
- Softail Fat Boy CVO/SE FLSTFSE 2005
- Softail Fat Boy CVO/SE FLSTFSE2 2006
- Softail Fat Boy FLFB 2018, 2019, 2025, 2026
- Softail Fat Boy FLSTF/I 1991-2017
- Softail Fat Boy Lo FLSTFB 2010-2016
- Softail Fat Boy S FLSTFBS 2016, 2017
- Softail FXDR 114 FXDRS 2019, 2020
- Softail Heritage Classic 114 FLHCS 2018-2024
- Softail Heritage Classic FLHC 2018-2026
- Softail Heritage Classic FLSTC/I 1991-2017
- Softail Heritage FLST/I 2006
- Softail Heritage Springer FLSTS/I 1997-2003
- Softail Low Rider FXLR 2018, 2019, 2020
- Softail Night Train FXSTB/I 1999-2009
- Softail Nostalgia FLSTN/I 1993
- Softail Slim FLS 2012-2017
- Softail Slim FLSL 2018, 2019, 2020, 2021
- Softail Slim S FLSS 2016, 2017
- Softail Special FLSTN/I 1994, 1995, 1996
- Softail Sport Glide FLSB 2018, 2019, 2020, 2021
- Softail Springer Classic FLSTSC/I 2005, 2006, 2007
- Softail Springer CVO/SE FXSTSSE 2007
- Softail Springer CVO/SE FXSTSSE2 2008
- Softail Springer CVO/SE FXSTSSE3 2009
- Softail Springer FXSTS/I 1991-2006
- Softail Standard FXST 2020, 2021, 2022, 2023, 2024
- Softail Standard FXST/I 1999-2012
- Softail Street Bob 114 FXBBS 2021, 2022, 2023, 2024
- Softail Street Bob FXBB 2018, 2019, 2020, 2025, 2026
- Sportster Custom XL1200C 1997-2003
- Sportster Custom XL883C 1998-2003
- Sportster Hugger XLH883HUG 1997-2003
- Sportster Roadster XL883R 2002, 2003
- Sportster Sport XL1200S 1997-2003
- Sportster XLH1200 1997-2003
- Sportster XLH883 1997-2003
- Triumph
- Rocket III 2003-2011
- Rocket III Classic 2004-2011
- Rocket III Classic Tourer 2007, 2008, 2009, 2010, 2011
- Rocket III Roadster 2011-2018
- Rocket III Touring 2009-2017
- Tiger Explorer 2012, 2013, 2014, 2015, 2016
- Tiger Explorer XC 2012, 2013, 2014, 2015, 2016
- Tiger Explorer XCa 2016, 2017
- Tiger Explorer XCx 2016, 2017
- Tiger Explorer XR 2016, 2017
- Tiger Explorer XRt 2016, 2017
- Tiger Explorer XRx 2016, 2017
- Trophy SE 2013, 2014, 2015, 2016, 2017
- Yamaha
- XV1900 Star Eluder 2018
- XVS1300 Stryker 2011-2017
- XVS1300 V Star 1300 Tourer 2013, 2014, 2015, 2016, 2017
- XVZ1900 Star Venture 2018, 2020, 2021
