23LikesICharger Duo 458
02-28-2024, 09:05 PM
#91
Ah okay thank you!
My plan was to rig up eight to twelve 8ohm-100W resisters in parallel with some hefty heat sinks and fans. It's not going to be a travel kit by any means.
12pc. 8ohm-100W in parallel .7ohm resistance showing 1200 watts capable roughly.
8pc. 8ohm-100W in parallel 1ohm 800 watts capable roughly.
Is it bad to have too low of a combined ohm resistance for this scenario?
My goal was to have the ability to discharge a 6S 8000Mah Lipo at 30-40 amps if I wanted.
My plan was to rig up eight to twelve 8ohm-100W resisters in parallel with some hefty heat sinks and fans. It's not going to be a travel kit by any means.
12pc. 8ohm-100W in parallel .7ohm resistance showing 1200 watts capable roughly.
8pc. 8ohm-100W in parallel 1ohm 800 watts capable roughly.
Is it bad to have too low of a combined ohm resistance for this scenario?
My goal was to have the ability to discharge a 6S 8000Mah Lipo at 30-40 amps if I wanted.
Edit: Wait, sorry. You said 0.7Ω. You should be fine. I put the decimal in the wrong spot when I looked at that. I read it as 70mΩ... Oops.
Last edited by trilerian; 02-28-2024 at 09:25 PM.
02-28-2024, 11:05 PM
#92
I'm not sure how well it will handle the 6s voltage. But when using 2s voltage, that load is too much and the icharger can't seem to discharge at high currents with a really low resistive load. My guess is this is a safety feature of the icharger so it doesn't accidentally short a high voltage over essentially no resistance. I have raised support inquiries with icharger and they are looking into this. Maybe I will get lucky and a new firmware update will fix it.
Edit: Wait, sorry. You said 0.7Ω. You should be fine. I put the decimal in the wrong spot when I looked at that. I read it as 70mΩ... Oops.
Edit: Wait, sorry. You said 0.7Ω. You should be fine. I put the decimal in the wrong spot when I looked at that. I read it as 70mΩ... Oops.
02-28-2024, 11:51 PM
#94
She's a spicy one. I'd like to max out the discharge capabilities, but that many resistors is out of the budget right now haha. Or I'd have to build one with 4 cucumber sized 500w 5ohm resistors, which would be the size of a small fish tank.
02-29-2024, 04:14 AM
#95
Over this past weekend i had my screen go black on my 458 Duo and got extremely hot. Starting shooting sparks out where connected to the power supply by bullets. Been using this setup since the release of the 458 Duo. Kind of bizarre and not sure what happened. I did notice over the past month or so when hooking it to the power supply it would spark which seemed odd.
03-02-2024, 11:34 PM
#96
Adding a second heat sink to this tank, along with two more fans.
03-04-2024, 06:22 PM
#97
Over this past weekend i had my screen go black on my 458 Duo and got extremely hot. Starting shooting sparks out where connected to the power supply by bullets. Been using this setup since the release of the 458 Duo. Kind of bizarre and not sure what happened. I did notice over the past month or so when hooking it to the power supply it would spark which seemed odd.
03-28-2024, 04:19 PM
#99
Yeah, I'll have to make a bank with some series resistors to bring up the resistance.
Just an update, I have contacted Progressive as well. Response is to change the voltage current cutoff limits. I have tried multiple settings and still can't get them to work. Progressive says they will pass on the info to iCharger, but they are on holiday right now. Oh, and I have found other users who have the same issue. But if anyone wants to experiment with settings, have at it!
Just an update, I have contacted Progressive as well. Response is to change the voltage current cutoff limits. I have tried multiple settings and still can't get them to work. Progressive says they will pass on the info to iCharger, but they are on holiday right now. Oh, and I have found other users who have the same issue. But if anyone wants to experiment with settings, have at it!
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