Powerall as a jump starter

This is about half the price:

Amazon.com: Schumacher IP-55 Instant Power 5-Ah Portable Jump Starter: Automotive

SCH-I535

 

Small units like this often don't work if you keep the car battery connected since the dead battery will absorb some of the power from the jump starter battery and therefore there won't be enough power to start the car.

I'm not saying this happens all the time, but is a possibility.

 

The video clearly explains that the battery + cable should be disconnected from the terminal lug and then reattached after start up.

 

Right, and this is not really standard procedure when jump starting. Usually you are able to leave the battery connected.

 

Provided the car battery is not dead as a door nail, it would probably start the car okay without disconnecting the + cable. I went on YouTube and there is one clip where they claim that the device is good for 21 jump starts. Pretty impressive! So much so, that I'm going to drink the Kool Aid and purchase one. What's impressive about it is, you can use it to plug in your most of your portable devices. I think it's a really useful product. I wish I thought of it.

 

It does seem pretty cool and only weighs one pound. Seems like fairly cheap insurance to take with you in your car all the time.

 

Call me spontaneous ! I just got back from Fry's where I purchased one. The price was as good as could be had on Amazon (where they charge sales tax now). Kudos to the company. All the instructions are in English only !!!

 

Sounds good but what is the life of the unit. If I keep it in my car for three years will it still have the power to jump start it?

 

I believe it 's shelf life is about 3 months before it needs to be recharged. It also comes with a power cord for your power port, so if you want, you can keep it charged in the car.