Amps required to jump the battery?

[Namuna]

I recently had my battery die on me and had to call roadside assist to come and jump it. So now I fished out my old Noco Car Battery Jumper model GB30 as a backup in case it happens again, and it's rated for up to 400amps.

Their website says that's enough to handle up to 4.0L Gasoline engines, but the last time I tried to use it on a friend's vehicle (older Honda CRV) it wasn't strong enough to turn it over so I'm afraid it won't work on the Stinger.

Does anyone know if indeed 400Amps is adequate enough to jump the Stinger? Thanks.

 

[oddball]

1) Those amperage ratings on *all* jump boxes are complete nonsense

2) There's not a "sufficient" amp rating. It depends on the condition of the battery in the car. A totally fried battery won't be helped by anything other than a very well connected strong battery. A battery that's soft because someone left the dome light on only needs the barest of lift.

If your jump pack had problems with a CRV then either the jump pack is going bad (it is a lithium battery, after all), or the battery in that CRV was too far gone.
For typical jump usage it'll be just fine for the stinger.

 

[Ucinn]

Yea, they are just to assist.. The one in my jumper pack is basically a motorcycle battery. It will help start a car with a battery that's too weak to start a car. But if the battery in the car is dead, it doesn't have enough juice to start the car by itself. You need jumper cables at that point and drive directly to a place to get a new battery.

 

[eflyguy]

Everything they said.

I have that same one and it was sufficient to start my truck (5.4l v8) when that battery was *low* but I know it wouldn't work by itself.

Comes in handy with the lawn tractor all the time!