This system is of separate batteries, at no time is connected with diodes, the batteries are never in contact and nothing is altered, if there are problems to use the warranty the bicycle returns to its original state in 10 minutes.
The manufacturing is 100% Spanish, this company manufactures its own batteries with 3,600mah LG lithium cells, the battery boxes are with 3D printing, the electronics may be Chinese, but nothing else is Chinese.
the connection goes out the side of the engine and the connections to the engine are with original Giant connection, there is no need to change cables, in 10 minutes the bike does not matter when it left the factory if necessary
The quality is good, LG 3,600mAh cells and 35A BMS.
Lateral anchorage, use Topeak QR CAGEMOUNT anchor.
The installation is very simple, you just have to connect the wiring that you send over the original connector of the motor, it is a very clean and reversible installation without any sequel...