power bank/jump starter?

[idahorider]

Guy at coffee was touting a power bank/jump starter. Small enough to fit in a tank bag, it can be used to jump start a bike or recharge cell phones, etc. Apparently you plug it in to a 110 outlet to charge it and it's good for three months. Found some on Amazon for less than $100. Sounds too good to be true. Anyone here have any experience with one?
Paul Emerson

[fotoguzzi]

I don't think any modern Guzzi will run with a bad battery so if you got it started you probably won't get far. unless you just left the dome light on and the batt went down.

[Mayor_of_BBQ]

http://www.amazon.com/Antigravity-Batteries-Micro-Start-Starter-Personal/dp/B00FDYYK4A/ref=sr_1_1?ie=UTF8&qid=1438646498&sr=8-1&keywords=xp+pps

Carry one of these 24/7 it charges my blutooth speaker, cell phone, ipod, sena voice, girlfriend's vape pen...

And yes it will jump a car even when it's down to 1/4 charge

My dad owns a wrecker service in SC, he turned me onto it.  He uses one for all his jump-offs... he says its faster than messing with cables and it comes with a car charger so it's always topped up.

[dsrdave]

Have one made by ballistic.  Has lots of adapters and works great!!!

[ibis1]

I work with a couple of guys that use them. A good one will start about any gas powered car or pickup truck. Like anything, there are a ton of different ones available at several price points. Do a little research so you don't end up with a dud. 

[bmc5733946]

I have one, did some research before buying, Anti-Gravity seems to be the most appreciated brand.  I have used it once to jump start a car, several times to charge phones etc.  Works a treat!!

Brian

[malik]

I've had one for more than a year, maybe two. Works very well. I've jump started cars & bikes - very much appreciated at rallies, and also use for phones & tablets - very useful on international flights when the seat USB connection is U/S )often enough). Goes with my luggage on trips. Last trip one of the wires in the 240v charger separated at its terminal - a dab of solder should fix it. Recommended. Only about twice the size of jumper leads, but much more useful & convenient.

Mal