Harley-Davidson Battery Size Chart by Model (2026)
TL;DR
- Most modern Touring and late-model Softail Harleys use a Group 30L battery (OEM 66000340A or 66000212), rated around 400 CCA.
- Sportster, Street, and Pan America models generally take a smaller 14L or 20L group battery, in the 220-310 CCA range.
- Older Dyna and Softail models (1997-2017) share a common 20L-family battery, OEM number 65989-97.
- Your VIN and the number stamped on your old battery beat any chart. Group sizes changed across model years, so match by part number when you can.
- Battery group size, CCA rating, and terminal orientation all have to match. Physical fit alone doesn’t guarantee the charging system is happy.
Finding Your Battery Without Guessing
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The fastest way to get this right is to pull your old battery and read the number stamped on the case.
Harley-Davidson part numbers follow a pattern: the digits identify battery type and size, and a letter suffix (A, C, or E) usually marks a minor design revision rather than a different physical size (Battery Mart, 2025). A “66000340” and a “66000340A” are typically drop-in interchangeable.
If the battery’s gone or the number’s worn off, your VIN and model year narrow it down fast. The chart below groups Harleys by family, since Harley reused the same battery across years within a platform far more than it changed things year to year.
Battery Size Chart by Model Family
| Model Family | Years | OEM Part Number | Group Size | CCA (typical) |
|---|---|---|---|---|
| Touring / Softail (current) | 2018-2026 | 66000212 | 30L | 400 |
| Touring (Road King, Street Glide, Electra Glide) | 1997-2017 | 66000340 / 66000340A | 30L | 400 |
| Dyna / Softail | 1997-2017 | 65989-97 / 65989-97C | 20L | 310 |
| Dyna / Softail (older) | 1991-1996 | 65989-90 | 16L | 300 |
| Sportster (newer) | 2004-2021 | 65958-04 / 65958-04A | 14L | 220 |
| Sportster (older) | 2000-2003 | 65948-00 | 14 | 220 |
| FL / FLH / FLT (vintage) | 1984 and earlier variants | 66007-84 | YHD-12 | 350+ |
| Pan America 1250 | 2021-2026 | RA1250 platform | 20L | 310 |
A stretched drive chain will still get you home if you baby it. A battery that’s the wrong CCA for your compression ratio won’t crank at all on a cold morning, so don’t round down on that number to save a few bucks.
Sportster, Street, and Pan America: The Smaller-Frame Group
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Sportster, Street, and Pan America models run smaller-capacity batteries because their charging systems and starter loads don’t demand what a full-dress Touring bike needs.
The 2004-and-later Sportster family (Iron, Forty-Eight, 1200 Custom) standardized on the 65958-04 battery, a 14L-group AGM rated around 220 CCA.
The Pan America 1250, built on the Revolution Max platform, uses a 20L-group battery rated near 310 CCA to support its semi-active suspension electronics and adaptive ride height hardware alongside the starter draw.
That’s a step up from the Sportster despite the smaller physical class, because the Pan America’s electronics package pulls more standby current.
Dyna and Softail: The Middle Ground
Most Dyna and pre-2018 Softail models (Fat Boy, Heritage Classic, Street Bob, Low Rider) share the 65989-97 battery, a 20L-group AGM rated around 310 CCA.
This single part number covers a wide production run, but Harley did update it once: bikes from 1991-1996 use the older 65989-90, a 16L-group unit rated closer to 300 CCA. The two aren’t interchangeable without checking terminal placement, so don’t assume “old Softail” means one battery for all of them.
Touring and Current Softail: The Big-Capacity Group
Road King, Street Glide, Road Glide, Electra Glide, and current Softail models need the most battery on this list.
Bikes from 1997-2017 use the 66000340A (30L group, 400 CCA), while 2018-and-later Touring and Softail models moved to 66000212, the same 30L group and CCA rating in an updated case design. Trikes built on the Touring platform from 2009 onward use the same battery family.
That extra capacity isn’t overkill. A Street Glide running heated grips, a stereo, and auxiliary lighting draws far more parasitic current at idle than a stripped-down Sportster, and the 30L group is sized to keep up.
Frequently Asked Questions
What size battery does a Harley-Davidson Sportster use?
Sportster models from 2004 onward typically use a 14L-group AGM battery (OEM 65958-04), rated around 220 CCA. Earlier 2000-2003 models use the closely related 65948-00 in the same physical class.
Do all Harley Touring models use the same battery?
Most do, within two eras. 1997-2017 Touring bikes use OEM 66000340A, and 2018-and-later models use 66000212. Both are 30L-group, 400 CCA batteries, just in different case revisions.
Can I put a smaller battery in my Harley to save weight?
Don’t drop below your bike’s rated CCA. A smaller-capacity battery may physically fit the tray but won’t reliably crank a big V-twin in cold weather, and it can shorten the life of the charging system by forcing it to work harder to keep up.
How do I know if my battery is AGM or conventional?
Check the case markings or your owner’s manual. Since the mid-1990s, nearly every stock Harley battery has shipped as a sealed AGM unit, so if you’re replacing an older conventional flooded battery, an AGM upgrade is usually a straightforward swap.
Does the Pan America use a different battery than other Harleys?
Yes. The Pan America 1250 runs a 20L-group battery rated around 310 CCA, matching Dyna/older Softail capacity despite being a much newer platform, because its electronics load is higher than a comparable Sportster.
