Energizer 84020 12V All-In-One Jump-Start System with Built-In Air Compressor and Power Inverter

• Energizer 84020 12-Volt All-In-One Jump-Start System
• 250 PSI internal air compressor inflates most automobile tires in 10 minutes, pressure gauge and ON/OFF switch is thermally protected from overheating, strong fabric-covered output hose with clamp-on valve stem coupler
• Two 12V DC power sockets for powering 12V devices and protection by a 30A manual-reset circuit breaker, and an internal power inverter and three-pronged socket for AC power on demand
• Heavy duty 400A insulated metal battery clamps, shortened clamp and reverse polarity audio alarms, ergonomic handle that doubles as protective housing for docked clamps, an adjustable light
• A 12V 1 amp internal battery charger with two-stage charger allowing for the charger to be safely connected to the wall outlet indefinitely and fully charged
• Item is nonreturnable

A great ergonomically designed little jump start unit.

I love the fact that it can be left plugged in perpetually

and will take care of itself. I'm not mechanically inclined

so the less I need to do the better.

The only complaint I have about it is that it doesn't come

with a cord to plug into the wall. You have to get a heavy

duty extension cord to connect it to the wall, and they

never tell you that when you are reading the product

description. For the price of this item, I think it should

come with a simple short extension cord.

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If it weren't for my All in One, I would have been dead in the water, literally, on Lake Lewisville in Texas. Needless to say, we ran the stereo & fish finder WAY longer than we should have and found ourselves stuck in a cove in the middle of nowhere. We brought the all in one, with the intention of just using it to inflate to tubes for the kids, but the Jump Start feature is what really saved us. I didn't even realize that it had a light on the handle (thank you wife for noticing) but that came in handy too trying to jumpstart a boat in the dusk while mosquitoes were starting to attack! I have since recommended it to many of my co-workers and fishing buddies.

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I spent a few weeks researching different jump starters and I wanted something that was easy to use, had a built in float charger, air compressor and was cost effective.

This unit fit the bill and the additional features (plug-ins) is a bonus.

These boxes are basically a battery you charge and use it to start your car when your battery is dead. When you charge batteries you must be careful NOT to overcharge...meaning, you can not just plug them in and leave them until you are ready to use them 1, 2, 9 months later. The overcharge will literally cook the battery and render it useless. Suprisingly there are very few jump boxes on the market with built in float chargers...meaning, when the battery is fully charged it will go into a float mode and trickle charge the battery not overcharge.

I have used this box 5-6 times over the last 4 months and it has performed flawlessly...even started our 2005 Diesel truck and that takes some power!

Agree with many of the other users the box should come with a cord to plug it in...another $10 at the store and the cables could be just a touch longer as it is sometimes difficult getting to a grounded location with the negative cable.

All in all I knew about the need for a power cord and cable length going in and I felt this was the best product for the price...value!

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I bought this charger to replace an old charger (Duracell brand) that had worked wonders for me for years...but finally gave out. This Energizer charger works really well and includes an air compressor, with which I topped off all four tires (added 10 psi to each tire...I know I waited too long to inflate them) and it worked like a champ. Only drawback this charger has is it needs an extension cord to charge it (spent less than $10 on a 12ft one from H--D----). This model has a built in sensor to avoid overcharging, so you can leave it plugged in until you need it without overcharging the battery. Very happy with this purchase.

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This jump-starter, air compressor, inverter, is of excellent quality and usefulness. As mentioned in other reviews, it would be nice if they included an AC power cord; and possibly a DC power/charging cord for the price. This is a fairly large unit and takes up a large amount of room in a trunk or the back of a station wagon/hatchback. It charges fast and has plenty of reserve power to start our motor home or inflate large tires. Great carry handle.

UPDATE 19 May 2011: The user manual was missing. Now I need it to check something. Item itself is pretty user friendly. Tried to download manual on website from manufacturer (UPGI.com) but no manuals or documents available from support. None available from Energizer. Tried Google. No one has uploaded manual yet. Finally found support 800 number for UPG Inc. which is also a wholesale/retail sales number. Nice lady answered. She took my name, email, telephone, address, etc. Said she would "look around" for one and send it "somehow" if she finds one.

Apparently, this is a "marketing arrangement" where they buy the use of the Energizer name, then import and distribute it.

Design pretty good. Sales-marketing good. Support not so good. Technical support essentially non-existant. Downgraded to two stars. Will post another update if I ever get the manual.