✓ VERIFIED
Apr 30, 2026
Great battery
Works great. My last battery lasted 8 yrs
HARDDRIVE
SKU: 490-2656
Harddrive Premium Factory Activated Battery - GYZ20H/YTX20H for Harley V-Twin
$192.95
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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.
Get reliable starting power for your Harley-Davidson or Indian Motorcycle V-twin with the Harddrive Premium Factory Activated Battery. This GYZ20H/YTX20H battery is engineered with calcium alloy technology for stronger cranking and a longer service life. It arrives factory-sealed and activated, requiring only a freshening charge before installation.
Why riders pick this
- Calcium alloy technology for stronger cranks
- AGM separators resist vibration damage
- Heavy-duty terminals for secure connections
- Safety valve flame arrestor for pressure regulation
- Non-spillable, factory-activated design
When it comes to starting your V-twin, you need a battery that delivers consistent, powerful cranks, especially in challenging conditions. The Harddrive Premium Factory Activated Battery is built for exactly that, offering a higher cold-cranking amp rating than many standard factory batteries. Its robust construction, featuring absorbed glass mat (AGM) separators, helps it stand up to the vibrations inherent in V-twin engines, ensuring durability and sustained performance.
Reliable Cranking for Your Ride
- Calcium alloy technology for improved cranking and extended life
- Absorbed glass mat (AGM) separators reduce vibration damage
- Heavy-duty terminals ensure secure electrical connections
- Safety valve flame arrestor regulates internal pressure
- Non-spillable design for versatile mounting
Optimized for V-Twin Performance
This Harddrive Premium Battery is designed to fit a wide array of V-twin motorcycles, including many Harley-Davidson and Indian Motorcycle models that use the GYZ20H or YTX20H battery specifications. Its factory-activated and sealed status means it's nearly ready to go right out of the box. A quick freshening charge is all that's typically needed before you can install it and enjoy dependable starts, ride after ride.
Specifications
- Brand: Harddrive
- Manufacturer Part #: HRDM72RGH
- UPC: 191361179129
- CCA Rating: 320
- Length: 7.31 in
- Width: 4.87 in
- Height: 7.87 in
- Weight: 16.2 lbs
Common questions
Is this battery ready to install right out of the box?
This Harddrive battery ships factory-activated and sealed. A freshening charge is recommended before installation to ensure maximum performance and lifespan.
Will this battery fit my Harley-Davidson Sportster or Dyna?
This battery is designed for V-twin motorcycles, including many Harley-Davidson Sportster, Dyna, and Softail models that use GYZ20H or YTX20H battery dimensions. Please verify fitment for your specific model year.
What are the benefits of calcium alloy technology in a battery?
Calcium alloy technology improves the battery's cranking power, particularly in cold conditions, and contributes to a longer overall service life compared to traditional battery designs.
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 | 490-2656 |
| WEIGHT | 16.2 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.81
26 RATINGS
5★
24
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1★
1
✓ VERIFIED
Jan 5, 2026
Wrong Battery
I returned it because it wasn't made for my Bike...the positive and negative terminals were the opposite sides of what I needed.
✓ VERIFIED
Aug 7, 2023
battery
ive only had the battery 2 weeks, it took 3 tries to start my bike after only one week of sitting. but i did not have to use a jump box. so i will just have to wait and see to have a more concrete determination
✓ VERIFIED
Mar 18, 2022
I bought this battery in2/18 still going strong 3/22
✓ VERIFIED
Aug 16, 2021
Worked great
✓ VERIFIED
Dec 4, 2020
Got it really quick. Cranks over quickly now.
