Portable / Handheld Jumpstarter Lithium -- Worthwhile ??

[pc100porsche]

Been looking at getting one of those tiny little car jumpstarters that are a little bigger than a smartphone, and use a lithium battery.
Can anybody recommend a good one from personal experience ?
Thanking you kindly,

[TimT]

Got one from Home Despot last year....

Have had to use it a few times on my daily driver... A Subie WRX...

Depending how flat your battery is you may get two jumps from it before you have to recharge it..

Its handy, but don't expect to jump a diesel pickup with it or something that has seriously dead battery...

[pc100porsche]

What model ?

[TimT]

No idea of brand or Mfg...