Q: How long does CARKU jump starter take to full charge?

A: It depends on the battery capacity of jump starter you buy. the bigger battery capacity is, the longer it takes.

Normally CARKU jump starters require the amount of time for full charge as following:

4000mAh to 8000mAh          around 2--3 hours

10,000mAh to 12,000mAh    around 3--4 hours

15000mAh                            around 5 hours

18000mAh                            around 6 hours

24,000mAh                           around 7--8 hours

30,000mAh to 40,000mAh   around 9--10 hours