Product Description

The K & K Jumpstart Jump-N-Carry 4000 portable battery booster pack is easy to use and lightweight and is the ideal entry-level professional unit, the JNC4000 combines power and ease-of-use in a durable, reliable unit. With a built-in charger, convenient battery status gauge, impact resistant case and 1100 Peak Amps of starting power, it meets a variety of shop needs. The internal battery is a sealed lead acid (AGM) battery with a self contained 500mA charger. Weights 18 pounds.

Product Details

• Amazon Sales Rank: #5395 in Automotive
• Brand: K&K Jumpstart
• Model: 990056
• Dimensions: 16.60" h x 5.50" w x 14.50" l, 20.00 pounds

Features

• Features 1100 peak amps at 12 volts
• LED indicator lets you know at a glance your battery pack power status
• 23" heavy-duty #4 cables for easy mobility
• DC outlet to power 12 volt accessories
• One year limited warranty

Customer Reviews

Handy and reliable
The unit I bought was purchased from Griot's Garage, which is this item rebranded. It is thin enough (3.5" wide) that I could keep it in my Mazda RX-7 between the seat and storage bins. I used it many times over the last 5 years and it seems to be holding up great. I put it in my finance's car around a year and a half ago. Even she has commented on how often she has used it; not for herself but for coworkers and customers at where she works.

The only criticism I've found is that the cables are a little short at 23" long. Not unusable but I'd like them longer. I just purchased the "660" version of the Jump-N-Carry, the JNC660 for my truck due to the 46" long cables and a larger peak amp rating. I've never had it fail to turn over a vehicle, but I thought it may help with the V8.

BTW I attached two strips of heavy duty velcro (the hook side) on each side of the back of the unit. This prevents the unit from sliding around in her truck.

eh..
for this item you need to provide the cord for it to charge.. ok its only an extention cord.. but they could have added one for about a buck. also the directions say not to let it charge for more that 24 hours i have a cheaper model from sears that you can keep plugged in all the time and it has a smart charge function to protect the unit..

this model just doesnt measure up.... but its ok

Wow !! worked at 9,000 ft in sub freezing weather!
For Christmas I wanted to buy my parents an auto battery starter that would work without them having to get out of their car, since they live in the Rocky Mountains where it can stay below freezing. My husband informed me because of their elevation, climate and they drive an SUV they would need something with a lot my amps; so with his help on line we found the jumpstart 4000. Dad was so excited to get it, he opened it before Christmas and had it out during our visit starting quads that had been sitting out in the snow and not running for quite some time. Then wouldn't you know it our Ford F-250 truck would not start one morning, after a -9 degree F night, when we were taking our one year old to the Urgent care with a 103.7 fever. We grabbed the Jumpstart and the the truck was up and running in minutes. By the time we were headed home from our Rocky Mt.Colorado trip the Jumpstart had been used nearly everyday, even to jump the neighbors snow plow. We were all very impressed with Jumpstart 4000 and knew we made a good purchase.