Customer Ratings & Reviews

Bought this after being stranded with a dead battery. Came out to a dead battery this afternoon. Hooked up this thing and started my car. The clamps look fragile so use care when connecting.

I really like this portable jumppack. It does exactly what it supposed to do. Charge car battery and other device that you have. Just amazing! I am thinking of getting a bigger version soon.

This is a great product. I've used it as much to charge phone and tablet as anything, but it's nice to know I've got an easy way to charge my car battery if I need it.

This is a great prod and small and easy to have with you. I have never had to jump start my car but nice to know with peace of mind to have available.

It takes some time to recharge now - it was much faster when it was new. Once fully charged though - it charges two phones serval times before it's drained.

The Cobra jumpack chargers are an excellent tool to have. Great for jumping car batteries, lawn mower batteries and charging electronics. Easy to use.

Works really well! I was able to charge a battery that had corrosion. Its also small enough to keep in a bag or coat pocket for usb charging.

Excellent little device! Ironically had to use it shortly after purchasing it & it totally lived up to expectations (3 times)! Highly recommended!

This is good for women, if they get somewhere their car won't start they have a way to jump it off without having to wait for help

I had a battery die at a gas stop when riding my motorcycle. Pulled out my JumPack charger, jumped my battery & off I went.

Works great. The only down side is that it needs to be fully charged to jump start a vehicle but it has many practical used

Works out of the box good to start your dead battery car more than once and you can charge your phone or tablet fast

Haven't had to use it yet but it gives me peace of mind that it's there if I need it especially on long trips

My daughter is in college and had to use it to jump start her car battery. It worked fine. Very satisfied!

It's so convenient to have. Easy to use. I am definitely recommending this to all my friends.

Pretty amazing that you can jump start you car with something smaller than older jumper cables.

Charges phone fast haven't had the chance too test the jump off feature but so far so good

Cobra - Jumpack Portable Charger - White/gray You should try something like this. Very useful

There's not much else I can say but this is a nifty little device and one heck of a life saver

This item is so small and compact with a lot of power. 2 minutes and my car was started.