How long does it take to charge a CAT CJ1000DXT jump starter?

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To ensure your CAT CJ1000DXT jump starter is ready when you need it, charge it fully before the first use. Referencing the CAT Professional Jump-Starter Instruction Manual, the unit requires a 40-hour charge using a household extension cord (not included). Always confirm all ON/OFF switches are in the OFF position during charging. The green LED Battery Status Indicator will illuminate when the unit is fully charged. To maximize the lifespan and ensure optimal performance of your CAT jump starter, fully recharge it after each use.