Originally Posted by
biz77
If you look at most of the use cases for the DUO chargers (at least in RC car racing), you would probably see that most times they are used with a discharge bank. I'm sure Junsi recognizes this. They can save money with fewer/smaller components (more profit as the new chargers are more expensive) and save some weight too.
This may be true but I would suggest it is only the case because the chargers aren't capable of providing the discharge rates people are looking for without a discharge bank. If the charger was able to discharge 2S at 40 amps I don't think many people would be using discharge banks. It would make for a really expensive charger though that would be hard to market because a lot of consumers aren't really aware of the need for discharge on something that says its a charger.