NO. It is not a good idea to “jump” a motorsport battery from a car or truck battery. It is much better to re-charge it if at all possible. On the top of each battery is a label that will specify the maximum amount of charging amps to use and a “jump” start from an automobile is about 150X more amperage than maximum amperage recommended, if not more. This can cause the cells to rupture and even catch on fire. This is true for all batteries, lithium or lead acid, if you must jump start the battery, do it from a like sized battery. A lead acid is much more tolerant than a lithium battery as they absorb the charge completely different. It is perfectly fine to jump start the EarthX battery from another motorcycle like sized battery or use a jump pack. It is also important to note that a battery that is defective and not holding a charge is different than one that you accidentally left something on and that is why it is drained. Do not try and jump a lead acid battery or a lithium battery if it might be defective.