Duracell DPP-300EP Powerpack 300 with Built-in 300-watt Inverter and 250 PSI Air Compressor

Don't buy it (2010-08-31) Rating: 1/5
It worked twice then wouldn't take a charge. This was after 7 months. Of course the warranty is 6 months. Company does not sell a replacement battery for it either. Save your $ and get another brand.
A Handy Item (2010-08-09) Rating: 5/5
Jumstarted my V-6 and V-8 engine batteries with no problems. Inflates tires and has built in PSI gauge, power inverter, and has a built in flashlight. A great item to have for any automobile owner. After one use it pays for itself. Easy to use and not too bulky.
Handy power pack! (2010-08-05) Rating: 4/5
Have used this twice to jump off a dead battery. HVAC installer accidentally let his van's battery run dead. I told him to try out the power pack because it's got jumper cables (I had just purchased it). It worked like a charm. Second jump was on a 2008 Honda Civic. Both times it worked fine. Bought it mainly so that I could have a little light if the power goes out in the occasional winter snow/ics storm that hit the south and cause widespread outages. The air compressor also works pretty good...better than going to the service station and paying a machine for air. Handy flash light attached as well. Overall...useful unit.
Jumpstarted my 2007 Acura MDX 3.7-L V-6 engine (2010-06-17) Rating: 5/5
I bought it since Dec 2009 and had only used the built-in pump to inflat my car and bicycle tires so far, but just the other day, I can't start my car - interior light flicker and nothing but the clicking noise indicating the car battery is low on power.... then I realize I have this Duracell Powerpack 300 in the trunk. What better time to test it? Even though my car battery is not completely dead (although interior lights are noticeably dimmer than normal), but since my car (Acura MDX) has a fairly big 3.7L V-6 engine, I was 100% sure this Powerpack 300 is strong enough to jumpstart. I hooked up the Powerpack's red and black jumper cables directly to my car battery. An indicator light on the Powerpack confirms my jumper connections are correct. I turned on the jumper switch on the side of the Powerpack. My car started right up with the first turn of my key! No hesitation at all, I am impressed! I checked the power reserve level and it still indicate full or close to full charge (4 bars). I have AAA membership, but the convenience of jumping my own car without spending 30min - 1hr waiting for AAA is priceless or in this case well worth the $80 I spent since I know my Powerpack will be ready when I need a jumpstart.
Works great for us (2010-06-17) Rating: 5/5
We purchased this to use on our boat in case we need to charge a phone or jump start the boat. I wasn't sure if it would do the job but we were just in a bind last weekend when our boat would not start after having the stereo on for 45 minutes. We have a big block 496 Merc V8 in our boat and the specs for the 300EP said it woudl not start a big block. Well, it did! Of course it helped that our boat was not totally dead, we had a little bit of juice to help start the boat. For $99 its a great value and saved us $350 from having to use Sea Tow!