Jump Starter

Is it Safe to Keep a Portable car Jump Starter in Car?

Oct 23, 2023

Is it Safe to Keep a Portable car Jump Starter in Car?

The interior of a car can reach 70-80°C (158-176°F) on a hot sunny day without too much trouble. But even if the battery pack doesn't set your car on fire, it's still a bad idea to keep it inside the car because heat will degrade Li-Ion cells. If you store a fully charged battery at high temperatures, that's one of the best ways to kill it. Most Li-Ion batteries specify a maximum storage/discharge temperature of 50-60°C (122-140°F).

If you live somewhere that doesn't get extremely cold winters, and your car battery is in good shape, and there is nothing wrong with your car, there isn't really a reason to keep a car battery booster pack around.

Storing a jump starter in the car is perfectly fine, especially with the newer lithium-ion batteries that are much more compact than the older, bigger lead-acid jump starters. There's no safety risk, although extremely cold temperatures may weaken the battery, so make sure that you check your car battery jump pack regularly.

Here are a few factors to consider when you need to keep a portable car battery jump starter in car:

  1. Temperature: car jump starters typically contain lithium-ion batteries, which are sensitive to high temperatures. If a power bank is exposed to extreme heat inside a car, it can lead to thermal runaway, causing the battery to overheat, leak, or even catch fire.
  2. Direct sunlight:Prolonged exposure to direct sunlight can significantly increase the temperature inside a car, leading to potential damage or malfunction of the power bank. It is advisable to avoid leaving any electronic devices, including car battery jump starter pack, in direct sunlight.
  3. Safety precautions:Car jump starters should be handled with care and stored properly to prevent physical damage or short-circuits. Leaving them loose in a car's cabin or trunk increases the risk of accidental impact or damage, which can compromise the battery's safety.