Well, it IS better made than the other one I had bought from Maplin - which failed within a couple of months - but the battery inside already seems to be self-discharging at an alarming rate. A shame as the conept is good - but the battery inside just isn't really a quality item.

I'm afraid this product is not really up to the job. 1. the unit takes ages to charge on mains - 1 day - making it impractical for use while on the road when you only have overnight to charge. When you first buy it, the instructions require you to charge for 36 hours. 2. When charging on DC from my car, the unit appears to draw too much current and blows my 12v cigarrette lighter fuse when you use it with another accessory. moderator note: This is likely to be related to more than one item being used via the same circuit rather than this particular unit. 3. I'm on my second unit and yet again the mains charger has failed while on a trip making it unusable. 4. I also use it to power 12v accessories from mains but alas this appears to not be the case as it seems to cause the mains transformer to fail (especially when the battery is nearly empty). 5. The 12v DC charger is too brittle and easily damaged in the car as it sticks out of the front - this just breaks it when brushing up against other objects you are bound to be carrying. 6. The inverter switch is vulnerable at the back so it is easily switched on while in the boot of your car so the inverter will just drain the battery. This device is a great idea but a huge disappointment - i think it lacks any form of durable quality despite it being marketed as heavy duty.

I had one of these to replace a previous one when the compressor failed. This compressor failed shortly after the the quarantee was up. The rest of the unit is OK but the compressors are fit for purpose

well made, plenty power, it is heavy but that makes it tough so is durable, Well done, I'm Happy

This bad boy is a beast - buy it!