I don't know a whole lot about battery chargers but there is something to consider when buying a charger that I have not seen in this thread . I bought a Venom Produo charger and am happy with it except that after having it a few weeks the backlight stopped working. The charger works fine but it is a pain in dim light because I have to use a flashlight to see the display. I talked to the LHS that I bought it from and told them I didn't really want to try to return it because I had to alter a few of the wires to get the plugs the way I wanted them. They told me that Viper handles all their warranty claims and to contact them but not to worry they are very good to their customers. I was concerned because I don't want to go without a charger if I had to send it in for repair. I contacted Viper and they told me they are very sorry I had a problem and will send a new charger out to me right away and it is up to me to dispose of the old one. Now I'm sure they realize I'm not going to throw out a $100 charger because the LED went out in it. The point is after reading 8 pages of this thread we can determine that it is a very good charger for the price, but the customer service is amazing. This is the difference between a good company and a great one. Venom will continue to get my business when I can and I will recommend them to anyone who asks. This is the kind of thing we should keep in mind when making purchases. Not all companies would have done that.