Dodge Journey 12V battery size and replacement: what fits a 2010 model
The short answer
The right battery for a 2010 Dodge Journey is the one that matches the group size, cold cranking amps and terminal layout of the battery the vehicle was built with. This article does not name a single group size because the right one can depend on which engine your Journey has: the 2010 model was offered with a 2.4-litre four-cylinder and a 3.5-litre V6. Market and any earlier battery replacement can also affect what is in the car now. Confirm the size using one of the methods below before you buy.
Terms worth knowing
Group size: an industry code for the battery's outer dimensions and where the positive and negative terminals sit. A wrong group size may not fit the tray or hold-down, or the cables may not reach. Cold cranking amps (CCA): how much current the battery can deliver to start the engine in cold weather. Match or exceed the original rating. Reserve capacity: how long the battery can power the vehicle's electrical load if the alternator stops charging. Higher is more forgiving. Battery type: flooded (conventional) or AGM (absorbed glass mat). If the original was AGM, replace it with AGM.
How to confirm the correct battery for your Journey
Read the label on the battery currently installed. It usually shows the group size and CCA rating. This is the quickest check if the battery is original or was replaced with the correct type. Check the owner's manual. It lists the battery specification for your vehicle. Use a parts retailer's fitment lookup. Enter the full model year, engine size and trim. Do not stop at "2010 Dodge Journey" alone. Ask a dealer parts department to look up the factory part using your VIN (vehicle identification number). This settles any doubt about engine or trim differences.
If the label and a lookup disagree, the battery may have been replaced with a non-standard size in the past. In that case, trust the owner's manual or the VIN-based dealer lookup.
Before you replace it yourself
Find out where the battery is mounted before you start. On many first-generation Journeys it is not under the hood. Check the owner's manual for the location and for the steps to reach it. Some placements mean removing trim or a liner. If that is more work than you want, a shop or a battery retailer that installs batteries is a reasonable option.
The usual safety order applies. Turn off the ignition and all accessories. Disconnect the negative terminal first and reconnect it last. Make sure the new battery is held firmly by the hold-down. Take the old battery to a retailer or recycling point, since lead-acid batteries should not go in household waste.
What this guide does not cover
This guide does not give a confirmed group size, CCA figure, price or warranty comparison for the 2010 Journey, because no verified specifications were available for it. Use the label on your current battery, the owner's manual or a VIN-based lookup for those details. Make sure the result matches your engine before you buy.