After looking that site over a bit more, I am not to sure I like the site. Maybe you should do some checking before you spend much money there!! I still love the Aims inverter I have, but that site is looking ODD to me now.
Most product reviews are from people asking qustions, not owners of products reviewing them. Strange! It sometimes happens people do such things, but far too many there and far to few real reviews, looks strange to me!
This product I DO NOT like the claims of charging you battery while running devices from the inverter.
http://www.invertersrus.com/inv1500wc.html
"Aims 1500 Watt Modifed Sine Wave Power Inverter with Charger"
"With a built in charger, you can use your inverter to charge your 12 volt batteries while you draw power from your inverter. Simply connect your inverter to a 12V dc battery, such as the one you would find in your car,"
Ok, I don't see in the specs where that charging power is comming from any outside source through the inverter to charge the batteries. Using a battery to power an inverter to run your fridge, and charging that battery at the same time from it's own power through the inverter?? Simply cannot be done of course, but almost looks as that's what they are claiming. If so I would call it a scam and aviod that site, buy an AIMS elsewhere.
Now of course there are alot of inverter chargers controllers that use an external power source to charge batteries, wind gennies, solar, etc.. for the external power source, but I see no mention of anything like that. I do not even see anything in the specs about the charging currant it is suposed to charge at? Would that be 1amp, 10amp, etc..??
Looks awefull funny too me at this time. If one product is a scam then the whole site probably is, so beware and check them before buying anything. They post a number and say " Feel free to call us with any questions at 480-219-1796. " and I strongly suggest it before spending any money.
Also they repeatedly say "Simply connect your inverter to a 12V dc battery, such as the one you would find in your car" on all the inverters I looked at, I would not suggest that with my 5k inverter and any decent load of course as it would kill the car battery, early death!
Anyway I will probably call them latter myself and ask some questions about that charger inverter, just play dumb and see what they say. If they try to tell me the battery charges itself while suppling to a fridge too I'll know it's a scam site. Hopefully they are not, and myabe the will have some answers how it really connects to other power sources for charging??