Toyota Prius Battery Size
On this page, we'll cover all of the different battery sizes for the 17 years of data we have for the Toyota Prius - from 2004 to the most recent model in 2020.
Overview
The Toyota Prius has 2 battery groups of H4 and 46B2. The table below covers the battery sizes for each group.
(1) The group code is a unique identifier for the battery group and is used by the Battery Council Internation (BCI). The code is a combination of letters and numbers and are used to ensure the battery size will be the best fit for a specific vehicle.
Toyota Prius Battery Size by Year
In the sections below we'll give you all of the battery size specifications and battery group codes for each specific Toyota Prius model year.
2020 Toyota Prius
The 2020 Toyota Prius Hybrid has a group code of H4, with a battery size of 8.15 x 6.90 x 7.48 inches (20.7 x 17.5 x 19.0 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2020 Toyota Prius.
2019 Toyota Prius
The 2019 Toyota Prius Hybrid has a group code of H4, with a battery size of 8.15 x 6.90 x 7.48 inches (20.7 x 17.5 x 19.0 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2019 Toyota Prius.
2018 Toyota Prius
The 2018 Toyota Prius Hybrid has a group code of H4, with a battery size of 8.15 x 6.90 x 7.48 inches (20.7 x 17.5 x 19.0 cm).
The 2018 Toyota Prius Hybrid has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2018 Toyota Prius.
2017 Toyota Prius
The 2017 Toyota Prius Hybrid has a group code of H4, with a battery size of 8.15 x 6.90 x 7.48 inches (20.7 x 17.5 x 19.0 cm).
The 2017 Toyota Prius Hybrid, Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2017 Toyota Prius.
2016 Toyota Prius
The 2016 Toyota Prius Hybrid has a group code of H4, with a battery size of 8.15 x 6.90 x 7.48 inches (20.7 x 17.5 x 19.0 cm).
The 2016 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2016 Toyota Prius.
2015 Toyota Prius
The 2015 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2015 Toyota Prius.
2014 Toyota Prius
The 2014 Toyota Prius Plug in, Auxiliary Battery, Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2014 Toyota Prius.
2013 Toyota Prius
The 2013 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2013 Toyota Prius.
2012 Toyota Prius
The 2012 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2012 Toyota Prius.
2011 Toyota Prius
The 2011 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2011 Toyota Prius.
2010 Toyota Prius
The 2010 Toyota Prius Hybrid, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2010 Toyota Prius.
2009 Toyota Prius
The 2009 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2009 Toyota Prius.
2008 Toyota Prius
The 2008 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2008 Toyota Prius.
2007 Toyota Prius
The 2007 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2007 Toyota Prius.
2006 Toyota Prius
The 2006 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2006 Toyota Prius.
2005 Toyota Prius
The 2005 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2005 Toyota Prius.
2004 Toyota Prius
The 2004 Toyota Prius HD, Opt or Smart Key, Auxiliary Battery has a group code of 46B2, with a battery size of 9 3/8 x 5 1/16 x 8 13/16 inches (23.8 x 12.9 x 22.3 cm).
You can use the table below as a quick reference whenever you need to check the battery size of your 2004 Toyota Prius.