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Question: So How many Amps is this device rated at? Please don't guess. Never Mind It's Only 10Amps.
Document: So I guess I'll have another project later. Luckily I hardly ever need the inverter. But anyway, keep in mind that most AC inverters are going to use up to 12.5A (at least) and so it's not advisable to plug one into this 10A rated device as it may blow the fuse in the connector depending on what you try to power with the inverter.
I ordered one from china and what a piece of junk. I finally found one of these and they are a blessing. Now if you are just charging a couple of phones an running a GPS you may not need something this heavy duty. I am looking to use it as a charger for a jumper system and running an iceless cooler for a total of up to 8 amps. These are rated for up to 10 amps.so if serious power draw is planned then these are the way to go.
This device has both.Other plugs I've got would multiply the outlet from 1 to 2 or from 1 to 3. I really wanted one to plug in all my gadgets and this unit exceeded my requirements with 1 to 4 sockets. It's solid, well built, sturdy and feels and look like it won't break or overheat and can handle 10 amps total for all 4 plugs (which is plenty for me).
Have been using it to power a couple of LED area lights. They are low amperage (about .3 amps) lights so haven't tried anything approaching it's rated load capacity of 10 amps. I have this wired to a bank of deep cycle batteries and use this to connect a voltage monitor (INNOVA 3721 Battery and Charging System Monitor) which I also use to monitor the battery voltage in my old van. I've plugged and unplugged things into it several times now without having contact problem.
I plugged the item up, inserted a USB PowerGen charger into it and it blew the fused in the product. Not a very good experience from day one. However, it this good to know that there is a 10A fused in the product, not knowing so many assume the device is faulty and just throw it away.Update 2/10/2013:  What I learned about this product is that it has a fuse in the DC plug part of the cord. The fuse is 10A.
I am happy with it so far! I guess its as good as the price. It is work for me.
I run a ton of toys in my car, probably to many. This power center is fantastic, works great overall.
When in doubt, just add up the amps of the various devices and make sure they don't exceed 10. Coleman coolers us 5 amps for comparison. A cell charger uses about 1 amp and my Garmin Nuvi charger uses 1 amp and an iPad charger uses around 2-3 amps.The packaging says 1 of the outlets can be used as a cigarette lighter. The packaging also states "The maximum output current of the socket is 10A." I assume this means 10 amps for all 4 sockets.
Others who have rode with me don't even notice so I guess it's a matter of personal preference on this one. I could always put some tape over it.This 4 outlet unit is nice and it works.
has both double sided mounting tape and screw mounts--i used both to install in both my car and my RV. Works very well and will stay installed securely for many years.
Answer: i donot know to be honest but i can say i have all ports used at one time never killed batt. this is the best one i have found  i tried auto zone napa a few others i recm. this one honest