A 12-volt sealed lead-acid battery is required. For the typical 2009 Rubicon, the common replacement is a YTX20L-BS, though some trims may use a smaller YTX14-BS. Always verify by checking the current battery label or the owner's manual.
Model and battery basics
The 2009 Honda Rubicon ATV runs on a standard 12-volt battery. Battery size can vary slightly by trim and any aftermarket modifications, so it’s important to confirm the exact group size before purchasing a replacement.
Common battery sizes for 2009 Honda Rubicon
Below are the two most frequently encountered group sizes for Rubicon models from this era. These options cover the majority of stock configurations and common replacements.
- YTX20L-BS — 12V battery commonly used on larger Rubicon variants; higher capacity for reliable starting and supporting accessories.
- YTX14-BS — 12V battery used on smaller or older configurations; smaller footprint and lower capacity.
The majority of 2009 Rubicon owners will use the YTX20L-BS, but always verify against your current battery or the service manual to be certain.
How to identify the correct size for your specific Rubicon
To ensure you buy the right battery for your exact model, follow these steps to verify the correct group size and fit.
- Inspect the battery label for the Group Size (for example, YTX20L-BS or YTX14-BS).
- Measure the battery’s dimensions (length x width x height) and compare to standard group-size specifications and your battery tray.
- Consult the owner's manual or Honda service bulletin for your VIN to confirm the recommended group size.
- If in doubt, remove the old battery and bring it to a parts store or dealer to match by group size, or contact the dealer with your VIN and model year.
- Verify terminal orientation (positive/negative posts) and ensure the mounting brackets and strap holes align with the replacement.
By checking the label, measurements, and official specifications, you can avoid misfits and ensure reliable cranking and charging.
Replacement options and maintenance tips
When replacing, choose a maintenance-free 12V sealed lead-acid battery in the correct group size. Consider these guidance points and options to maximize reliability and longevity.
- Buy a battery from reputable brands that offer the exact group size (YTX20L-BS or YTX14-BS) and are rated as maintenance-free.
- If you operate in cold climates or use additional electrical accessories, consider a battery with higher cold-cranking amps while staying within the correct size.
- Use a smart battery maintainer/tender when the Rubicon sits unused for extended periods to prevent sulfation and extend life.
Choosing the right size and maintaining it properly will help ensure dependable starts and overall reliability for your 2009 Rubicon.
Summary
For a 2009 Honda Rubicon, the typical battery size is a 12V sealed lead-acid unit, with YTX20L-BS being the most common replacement for most trims and YTX14-BS used on some smaller or older configurations. Always verify the exact group size by checking the existing battery label, the owner’s manual, or dealer guidance, and match dimensions and terminal layout before purchasing.
Notes
If you’re shopping online or at a parts store, include your exact Rubicon trim and year (for example, 2009 Rubicon TRX680FA vs. 2009 Rubicon TRX500FA) to avoid buying the wrong size. Availability and part numbers can vary by region.