If you plan on not using your vehicle for a long period of time the battery will lose its charge. There are ways you can prevent this from happening though.
How to Keep a Car Battery Charged When Not in Use
Use a Car Battery Float Charger
What is a float charger?
A float charger will charge a car battery at the same rate that it discharges. This will maintain the battery at full capacity.
What’s the difference between a float charger vs trickle charger?
The float charger has circuitry that prevents it from overcharging a battery. Trickle chargers do not have the same circuits.
What is the Best Float Charger?
How to use a float charger:
Step 1: Disconnect the positive and negative cables from the battery.
Step 2: (Optional) Remove the battery from your vehicle and set it near a power outlet. You don’t have to remove the battery unless the vehicle is sitting outside in cold weather. Cold temperatures are bad for batteries!
Step 3: Attach the clamps from the float charger on the battery terminals.
Step 4: Plug the float charger into the power outlet.