Harddrive Premium Factory Activated Battery - GYZ20HL/YTX20HL for Harley V-Twin
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
Ensure reliable cold-weather starts and consistent power for your V-twin with the Harddrive Premium Factory Activated Battery. This GYZ20HL/YTX20HL battery delivers dependable cranking power through advanced calcium alloy technology. It arrives factory-sealed and activated, ready for a quick freshening charge before installation.
Why riders pick this
- Calcium alloy technology for extended life
- Heavy-duty terminals for reliable connections
- Safety valve flame arrestor
- AGM separators reduce vibration damage
- Non-spillable, factory-activated design
When the temperature drops or your bike has been sitting, a robust battery is the key to a quick start. The Harddrive Premium Factory Activated Battery is engineered to provide that crucial reliability, offering a higher cold-cranking amp rating than many standard options. Its construction with absorbed glass mat (AGM) separators not only makes it maintenance-free and non-spillable but also highly resistant to the vibrations common in V-twin motorcycles, ensuring a longer and more consistent service life.
Advanced Power for All Conditions
- Calcium alloy technology for extended life and strong starts
- Heavy-duty terminals for secure and efficient power transfer
- Safety valve flame arrestor for regulated internal pressure
- Absorbed glass mat (AGM) separators reduce vibration damage
- Non-spillable and maintenance-free design
Optimized for Broad V-Twin Fitment
This Harddrive Premium Battery is designed to fit a wide range of Harley-Davidson and Indian Motorcycle models that require the GYZ20HL or YTX20HL battery specifications. Its factory-activated and sealed design means you're just a freshening charge away from installation. Choose this battery for a durable, high-performance power solution that will keep your V-twin starting strong, ride after ride.
Specifications
- Brand: Harddrive
- Manufacturer Part #: HRDM720GH
- UPC: 191361139437
- CCA Rating: 320
- Length: 7.31 in
- Width: 4.87 in
- Height: 7.87 in
- Weight: 16.2 lbs
Common questions
Is this battery charged and ready to install upon arrival?
This Harddrive battery is factory-activated and sealed. However, a freshening charge is recommended before installation to ensure optimal performance and lifespan.
Will this battery fit my Harley Softail or Dyna?
This battery is designed for V-twin motorcycles, including many Harley-Davidson Softail and Dyna models, that use GYZ20HL or YTX20HL battery dimensions. Please confirm fitment for your specific model year.
What is the advantage of a factory-activated battery?
A factory-activated battery is pre-filled with acid and sealed at the factory, eliminating the need for you to handle acid or perform initial activation steps, making installation quicker and safer.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Batteries |
| SKU | 490-2657 |
| WEIGHT | 16.2 lb |
