The answer is yes, and you can put a blanket on your battery. But you need to measure your battery all around to get a proper size blanket. For convenience purposes, it would be best to remove the battery from the car's engine compartment.
Can you put insulation around car battery?
When your battery is exposed to extreme temperatures, it tends to lose its charge more quickly. You can protect it from the outside heat and cold by simply wrapping a small insulation blanket around it.Sep 19, 2017
What is the purpose of a battery blanket?
Battery blankets are essentially battery warmers, they warm lead-acid batteries in colder climates, where the battery will discharge rapidly due to freezing cold temperatures.