it is without spring and movable connection to battery.
The package took some time to get to me..The overall quality is good but i found it very impractical to be soldering all the batteries because it will be very difficult to check if 1 battery is faulty because it is in a circuit..i will order another model next time which has removable battery option because it takes 1 minute to start using the powerbank and battery replacement is very very easy on them..on the good sidr i would say that it has 4 ports which is good..