I needed a portable charger to use in my boat cause my crank battery had died on me on the lake recently

I'll just use them as a fancy USB charger that only had one USB out

My $30 portable cell phone charger holds better than this

Great charger great idea

Great little charger

I received a used and damaged item with a lot of scratch marks, missing bag , charger and when I tried to use another charger it didn’t work

Also with one jump, it drained the whole charger that was fully charged to night before...disappointed 😢

I charge it every 6 months or when i remember usi g a samsung fast charger

We just plane love this charger

Great charger, quality product, even ships in quality packaging.

To make things worse, if you try to start your car about 4 times, this charger would be dead as well, and will need to be charged

We hooked this portable charger up in less than a minute, and started the car on the first try.

It is one awesome charger

Great Little Charger.

Excellent charger.

Unit has the similar bells and whistles of other portable chargers, USB, etc.. as backup to backups for phones et al.

This is just an expensive phone charger

This is a good charger but it will not work on a really dead battery

Great charger

However, when I needed to actually use it the charger was dead

In that time I only had to jump the car once and this charger worked well, just like before

The output jack does not appear to work as a charger

so its a great phone charger but to jump cars wouldn't recommend

Love this great charger, starts cars motorcycles, mowers etc

Love these chargers!

This is just an over priced USB portable phone charger, IT WILL NOT jump start your car.

The compact charger works effectively so far charging our cars and lawnmower.

This is a good charger but it will not work on a really dead battery

This charger was really easy to use and can start a car from any location

This is such a handy charger.

So I will have to find a suitable USB charger.

Disadvantage, they don't supply electrical charger, it's a one you can connect to USB, so you will have to get a converter

great charger

Great charger for the price

Nice portable jump box charger and easy to use

I'll keep it as a very expensive USB charger/flashlight, but it's useless as a jumpstart device.

Now I have to buy a whole separate charger - extremely unhappy at having to pay even more than what I paid for this jump starter only

Love this charger, my car wouldn’t start after something drained the battery and this started it right up on the first try, it also still says it has 100% charge afterwards

Great charger small and compact easy to charge and use

It did however, work enough to polarize the stone-dead battery so I could put a charger on it, so not a total loss, but certainly not a solution if you're stranded in the boonies with a dead battery.

Kinda wish it'll fast charger via AC but at less the DC will fast charge it in half the time of the

This was exactly what I was looking for in a portable car battery charger!

To make things worse, if you try to start your car about 4 times, this charger would be dead as well, and will need to be charged

These portable chargers don't seem durable

The light works and you could use it as a portable phone charger, but it does NOT jump start a 12-volt battery

We had already purchased a portable charger few years ago for my husbands car

Used the charger a few times already and worked everytime when jumping a dead battery

While the GB40 may still jump start just fine, its usefulness as a charger for other devices is limited compared to the competition.

Nice portable starter and charger with different light modes

Luckily this time at home where I keep a better but much older charger.

Worked like a charm to start a 3.6L V6 engine with a battery so dead a trickle charger wouldn’t even recognize.

Instead of dragging out my charger and running an extension cord and waiting to charge the battery, I just clamp this baby on and presto the car starts

This is a great battery charger

Charges on a fast charger in a couple of hours.

Really like this charger

charger works well .very durable

I got this over those stupid trickle chargers.

Read a few products and this one was listed on a top ten portable charger reviews... dead batty on our car sat unused for just over a month.

While this is what they are made for, because of their size I use them as portable USB chargers

This charger is a life saver.

The charger worked as advertised and started my car quickly and without problems.

I've used other portable chargers / jump start systems, and this was by far the easiest to use

Amazing quality and build, the fact that it can be charged from a USB socket is a great plus as you dont need to drag a dedicated charger with you

charger works well .very durable

Can charge phones of this thing….and size is amazing versus my CAT portable charger that’s 5 times the size….glove box size storage needed…:)

This charger was easy to use.

It is lightweight and useful as a portable phone charger as well as cranking engines with dead batteries.

I bought a regular lead acid based charger at costco and it worked fine, even without it being charged first

Its a great charger when its charged, However the micro USB charging port to charge the jump starter is very weak and my micro USB socket fell off the circuit board.

This charger is super safe

The cord cable is Sooo Short, I had a Portable charger before and this is the shortest I have seen

AAA came and jumped started it with an old fashion portable charger.

The second time it had also been used as a portable phone charger and flashlight and was down to one bar (see photo)!

So glad the old days of heavy, awkward chargers are behind us

I then put the large portable charger on it, the car started right up

This charger is so easy to use, takes up no space and has saved us many times.

So glad the old days of heavy, awkward chargers are behind us

I lost the proprietary charging cord for my old portable charger which made it useless, and definitely not a problem here!

I bought this charger cause it had good reviews however it didn't work for my

Its a great charger when its charged, However the micro USB charging port to charge the jump starter is very weak and my micro USB socket fell off the circuit board.

I'd been meaning to get a portable charger anyways, so I ordered this product

He told me the 1000 amp one was just an expensive cell phone charger

I like this charger

The best must have portable battery charger ever

This is the most durable, reliable charger that I've ever used

This charger is awesome and especially for a female to own

This charger is compact.

would click off a few seconds after just a couple seconds of slow c ranking

USB C is much faster, if this model is available with a USB C charging port I would like a replacement...

I had to use override mode (note it's not super dangerous as they scare in their videos :) ), and voila,

It worked as it should.

I bought this mostly for peace of mind, however, I've used it nearly a dozen times for both of our cars as well as neighbors cars as well as for my phone when the battery was almost dead

It lasted longer (for me) than the one-year warranty it came with, yes, but there is no reason lithium batteries of the type used in this device should fail as quickly as they did.

Haven't done a jump start yet but will update when I do, as well as when I see how often I need to recharge just from sitting.

so we needed a way to jump the car from our garage as well as on trips

Getting the car fixed this weekend, but in the meantime my wife has already mastered the NOCO as

Pulled out this booster and it started right up just as fast as with the vehicles own battery

We have charged at home in a wall receptacle as well as in the lighter socket of the car and both gave equal charges.

OUT MY JNC660, PLUGGED IT IN AND STARTED IMMEDIATELY.Maybe thing thing works as it should on smaller engines, but I would not trust it on larger

It's already saved me once as well as having saved several other folks