Battery charger
Item arrived quickly but was non-functioanl. Obviously a return or refurbished though not advertised that way. Took several hours to disassemble and get working and you needed a EE degree to make it work. Still not 100%. Price was cheap, but as they say you get what you pay for.

Easy use of charger
I really like using this charger its light in weight and easy to use. I've used it only once since i recieved it but it so far is an excellant product. For the price you can't really beat it.

SC-600A Speed Charge on small batteries
I used this charger on 7 to 9 amp/hour batteries. At first it charged the batteries fine but I started to notice that when charging at 2 amps it wouldn't register as fully charged sometimes. It would stay to 4 bars but not go to the charged light even after a longer than normal time. I would change to 4 amps and then it would be fully charged. I worry that it may be overcharging some batteries.

I also noticed that it couldn't read some 6 volt rechargable lantern batteries (4.5 amp/hour). This is the main reason I bought this charger. I have a automated Schumacher 1.5 amp charger and thought well of the company, that is why I wanted to buy another Schumacher.

The charger seems to work fine on larger batteries automotive or motorcycle, so it is good for that.

Good Choice For Antique Car Owners
This little charger works equally well when charging and maintaining both 6 and 12 volt automotive batteries. It's a good choice for maintaining batteries in cars which are driven only on special occasions.

Same as the one offered by Sharp Image
It can charge both 6V and 12V batteries, with different amp selection. Different from some of the older style charger, this one will automatically shutoff when charge is full. So you can plugin, clamp on, turn on and walk away doing other things. Never worry about overcharge the battery.

It is light weight and great tool to have, if you have a lot of batteries around. We use it to charge and check the batteries for the large UPS power supplies in our office. Properly maintained battery can extend its life so much, worth many times the cost of this charger.