GREAT

The product works exactly as described

Seriously beefy, powerful unit, very heavy. The LED light could be better, and the clamps aren't the easiest to use, but this has saved my butt a few times.

Very powerful and seems to hold a charge quite well. Used in a shop under HD conditions and is very durable.

Jump box worked great for a while, and now it is two days away from the warranty expiration and it has now crapped out and wont hold a charge. Not even wasting my time to try to get warranty honored will go with different brand.

So I purchased this a while back. Used it maybe 4 times. The LED stopped working after 4 months and the USB does not stay powered. At full charge I only get 6.7V now. This was good at first but for the price, you'd expect it to function for more than a couple months. Waste of money in my opinion.

This is my second unit.I've used this so many times to open the slides on my RV when the house battery went dead.Jumped many cars and diesel trucks.It goes everywhere with me when I'm traveling.I've used it when camping as back up battery.I wouldn't be without it.

Used daily in our auto repair shop. Hasn't given once ounce of trouble. Would highly recommend!!

Piece of garbage. Will only get one jump out of a full charge. Will not buy another

it work great for a long time but than all or a sudden it stopped working properly.

Due to my own experience I believe the Jump-N-Carry JNC770R battery jump starter is the best, most essential tool for your car! My story ... due to a disability, I seldom drive my car but once every two weeks, so the battery is constantly drained and I am constantly having to jump start my battery. This charger has enough power to jump start my battery, in any condition, even if the battery is totally dead. The jump charger itself, stays charged for a very long time through many jump charges without having to recharge it! Another real cool feature is the long commercial grade jumper cables, heavy duty commercial grade clamps and very long standby jump start charge. I can set the unit in my car, connect the terminals, flip the switch and the standby power stays on for several minutes, giving me ample time to maneuver my wheelchair into position to get into the seat to turn on the ignition. The Jump-N-Carry JNC770R battery jump starter is one of the most heavy duty units, long lasting standby charge, dependable, easy to use essential tools for your vehicle. I would buy one for each vehicle I owned and keep it in the trunk. I give it 5 stars across the board!

the plastic cover was very stong!

Great jumpboxes. I'm his is my third one had the blue which worked great and then the yellow which is still working (and has the built in air pump but the hose sticks out so not as sturdy) and now I have the red. This one is just right. I use a portable DeWalt air pump which is fantastic.The JNC jump boxes are dependable and the charge does last several weeks/months. Just check it routinely and keep it charged up and ready to go!

Great quality and packaging. Must have till for the wife or kids car

Best portable jump starter on the market in my opinion...... I have had a bunch of them. Not to mention REPLACABLE BATTERY!

His coworker dropped it and it didn't break! He doesn't have to charge it very often at all. It's a great addition to his tools for the job.

Works great

A quality product made in the U.S.A., not China.

Liked the longer cables but we had the cheaper version of this and it lasted years. This one only 7 months!!

Works great