Parallel between skylla 100

Q&A and troubleshooting
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1

do a Skylla 100 i (3) could be connect in Parallel with Skylla 100 i (1)?

2

The concept of paralleling Battery chargers to achieve higher charge currents for large banks is not uncommon.
It follows from the design of a charger that they can accept voltage present on their output while they are not turned on - There may be some current taken from the battery by the voltage monitoring circuits.
Hence what will happen if two battery chargers are connected to the same bank:

  1. Bulk charge current will be the sum of both chargers.
  2. The charger with the lowest absorption voltage will go into float first, and the charge will be taken over by the charger with the higher absorption voltage.
  3. Once the battery reaches the voltage of the higher absorption setting, the second charger will also go into float. If the first charger has a higher float voltage then the second, it will pick up the charge again.

So the answer is that it is possible to connect any number of chargers to the same battery bank, BUT you need to be carefull in setting up the voltages correctly, and also be aware that the discharge current will be higher. This latter is usually a very minor concern, due to the low level of the current involved.