Forum Discussion
Skibane
Nov 16, 2021Explorer II
Depending on a battery's state of charge, it can draw a huge amount of current.
A really discharged battery could draw hundreds of amps for a little while, if the battery charger was capable of supplying it.
It doesn't mean that there's anything wrong with the battery - That's just their nature.
For this reason, battery chargers are designed to limit the maximum amount of current they can supply.
Typically, this amount is less than the fuse size, or else the fuse would blow instead.
...which again brings me to the question: Why are they using a 30 amp fuse with a charger that's capable of supplying 45 amps?
A really discharged battery could draw hundreds of amps for a little while, if the battery charger was capable of supplying it.
It doesn't mean that there's anything wrong with the battery - That's just their nature.
For this reason, battery chargers are designed to limit the maximum amount of current they can supply.
Typically, this amount is less than the fuse size, or else the fuse would blow instead.
...which again brings me to the question: Why are they using a 30 amp fuse with a charger that's capable of supplying 45 amps?
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