Q: What are three things I can do to get the longest life out of my jump starter?
A: First, keep it charged. This is number-one with a bullet. If you use your jump starter every day, charge it every day. Never let it sit in a heavily discharged state as this is terrible for the battery.
Next, respect the duty cycle. Every jump starter is subject to a duty cycle in which the vehicle can be cranked only so long before a period of rest (for the jump starter) is needed. See your operator's manual for the specific details of your jump starter.
Finally, consider your storage situation. Whenever possible, store your jump starter in a moderate temperature environment, between 50 degrees F and 70 degrees F (10 degrees C to 20 degrees C).
Like vehicle batteries, exposure to extreme temperatures is detrimental to jump starter batteries, both in the short and long term.
Information provided by: Clore Automotive
