Item arrived in 40 days to USA. The original package was apparently returned due to a paperwork error, The seller contacted me to let me know what happened and provide a new tracking number. I appreciate the open communication. When the need arises for another item I will not hesitate to order from this seller.
documentation / manual very bad and incomplete - no word how to activate (needs +5V to B- and P-) - no word about the second password to change settings (it is 123456) - no word about the many values in the settings section because provided manual is not for this model - App with many bugs, crashes and does not accept some values Device itself works fine but you have to invest lots of time to get it to work. And: 0.6A balancing current is not true, I meassured it and it's only about 0,016A which is very very low. I have the version with 2A too and it's a lot better. Not delivering 2A balancing current at all but enough for my 14s60p 18650 system.