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On my ISDT It really depends on what amperage I charge at. At low amperages (1-2A) it's generally off, maybe turning on sporadically. If I'm charging at 5A it runs on low speed. When I'm charging at 10-15A it ramps up to a pretty high speed and loud volume. So I think it's safe to say that they're thermally regulated.I have a Hitec charger but this question applies to all brands. Does your fan always run or does it come on randomly? Trying to figure out if mine is messed up or interlocked with a sensor.
My Hitec even ramps the speed up and down.Doesn't come on randomly, always depends on the load and the internal temp of the charger. If it's truly random it's a bad charger i.e. defective.
It's not a proximity sensor, it's just a natural physical reaction of fans. When air flow is restricted the pressure in front of the blades increases slightly but not enough to make up for the fact that flow is restricted almost eliminating the fans ability to remove enough air from the intake to create any significant vacuum eliminating a large amount of the load because the blade pushes against pressure as it always does but, no air flow means no suction which is a large part of the load.Hota D6 plus here. Pretty sure most charger fan algorithms are based on an internal temp probe. When it's hot in my garage, the fan is spinning at almost 100%, almost all of the time. Even if I'm only putting in less than an amp. During the winter when it's cold, the fan almost never spins up. Spring and summer it kicks on for a bit, then slows down, ramps back up, repeats.
I also noticed that there is some sort of motion or proximity sensor by the fan exhaust. When it gets blocked or you put your hand near it, the fans spin up like crazy.
My ISDT K2 Air charger throttles the Fan RPMs. And only comes on after 100F+.I have a Hitec charger but this question applies to all brands. Does your fan always run or does it come on randomly? Trying to figure out if mine is messed up or interlocked with a sensor.
No, this is what I was talking about. I get what you mean, but this is something different. It seems to do it only sometimes, oddly enough. Pretty sure "feature" is intended to overcome exhaust blockages though.It's not a proximity sensor, it's just a natural physical reaction of fans. When air flow is restricted the pressure in front of the blades increases slightly but not enough to make up for the fact that flow is restricted almost eliminating the fans ability to remove enough air from the intake to create any significant vacuum eliminating a large amount of the load because the blade pushes against pressure as it always does but, no air flow means no suction which is a large part of the load.
Interesting. Haven't seen that beforeNo, this is what I was talking about. I get what you mean, but this is something different. It seems to do it only sometimes, oddly enough. Pretty sure "feature" is intended to overcome exhaust blockages though.
Wow, that is the strangest thing I ever saw. Like it has some Artificial Inteligence.No, this is what I was talking about. I get what you mean, but this is something different. It seems to do it only sometimes, oddly enough. Pretty sure "feature" is intended to overcome exhaust blockages though.
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