I will try to help also...
I have the B5 and I LOVE IT!!!

1. Cannot answer the B5 does not say anything like that
2. My B5 also does not tell the cuttent capacity but does shoe the Mha it has charger in the lower right. when my 1100 Ni-Hm does completley it does charge to around 1185 which is normal and good.
3. Something is wrong there I charge my Lipos at the full 5A and they never get hot and charge fast. are you balance charging or just lipo charging it can do both. I balance charge a 7.4 2250Mha at 5A and it takes about 40 min and the battery NEVER gets hot.
4. Yes should be.
5. That is correct to charge a battery the charger usally inputs a higher voltage.
6. There is a fast charge mode it is the amps that you charge at 5A is faster than 0.1A
7. No storage and you have to manualy trickle charge at 0.1A sorry no automatic trickle charge.

lol if you do not like it let me know I will take it off your hands