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HomeAircraftHelicopterHelicopter Main Discussion › help with icharger
05-27-2015 12:20 AM  3 years agoPost 1
flyboy1985

rrApprentice

mohnton pa

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hey guys,
(put this in charger fourm and no hits , so maybe more luck here on the main page??)
anyways....
i have a i charger 306b and a mean well se-1000 power supply.
the problem im heaving ,is that since a few days ago, i noticed that it will not charge at 30 amps. if i set it at 30 amps , then it only goes to 24 amps , sometimes only 20 - 21 amps,
(in case your wondering why im charging at so many amps. its 2 6s packs at a time,)
but i cannot figure out whats going on, i didnt change no settings im aware of , its in a case so its protected,so i cannot figure out whats going on , i just hope it isnt my ps or charger taking a dump, there not even 2 years old,
well thanks for your time guys

going pro , one crash at a time

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05-27-2015 12:28 AM  3 years agoPost 2
EEngineer

rrProfessor

TX

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Check your open circuit voltage on your power supply(you didn't mention its output voltage).

Now, start the charge process.

Re-check the power supply voltage, this time it's under full load.

Is the supply voltage under load lower than that of its open circuit voltage?

If so, then your supply can't handle the load adequately, so the supply voltage "sags" and then the charger won't see the input voltage it needs. And then the current output of charger be less.

Assuming your charging setup cables are up to snuff.

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05-27-2015 01:09 AM  3 years agoPost 3
flyboy1985

rrApprentice

mohnton pa

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i must rip my case apart to take my fluke meter and test the ps, so id rather wait till i got more sealant to do that, so this weekend i will do that, ,
but the thing that puzzles me, is , its been charging at 30amps for the past almost 2 years no problem , so im wondering . do you think its possible the connection came loose on the ps and that could be why? im hoping so , but i will let you know soon enough about what readings i get with my meter. thanks for the reply

going pro , one crash at a time

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05-27-2015 01:25 AM  3 years agoPost 4
EEngineer

rrProfessor

TX

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its been charging at 30amps for the past almost 2 years no problem
That's odd...which seems to indicate that the power supply/charger is capable of the 30A.

What's changed during the 2 years?

Wear and tear on the cabling? Partially broken wires?

What about your paraboard? Can you open it up and look inside?
Check all the traces on the para's PCB, including the balance cable traces. Make sure they're ok.

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05-27-2015 02:00 AM  3 years agoPost 5
flyboy1985

rrApprentice

mohnton pa

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my charge board looks to be in top shape, the fuses in it also are in great cond. , the connection on the ps is a nut and i cant remmeber if i torqed it or babyed it, and if i did baby it , then maybe vibration from getting tossed in the truck and the field broke the connection loose,
i only say that because it dont always charge at just 20 amp, sometimes i get as high as 26, and 27.. and it will go up and down slowily a few amps down , then comes back , then goes back down ?
i just hope my charger or ps took a crap , thats why im holding onto the connection came loose,,, i may have to just go open her up now

going pro , one crash at a time

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05-27-2015 02:13 AM  3 years agoPost 6
dkshema

rrMaster

Cedar Rapids, IA

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Which SE-1000 do you have?

-----

Batteries about done and need replacing?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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05-27-2015 02:45 AM  3 years agoPost 7
Aaron29

rrProfessor

USA

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Is that a 24 volt power supply?

Even if a power supply provides adequate amps, the charger needs 24 volts to reach it's full potential. It'll charge off of 12V but you won't have full charging power.

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05-27-2015 05:10 PM  3 years agoPost 8
jhartsock3

rrApprentice

Greenwood, IN

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couple things I would look into being that you said your setup is in a case and 2 yrs old. Maybe a cooling problem Check your fans to insure they are working and with good speed. Also check the whole system for dust you may just need to clean it like you would a computer to get the dust out.

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05-27-2015 09:35 PM  3 years agoPost 9
flyboy1985

rrApprentice

mohnton pa

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well i cracked the case open last night , the pos wire on my i charger was crimped and all but split,
all fixed, shes now running like she should thanks alot guys,,,, btw i have the 24v ps ,, i got "the solution" combo from progressive about 2 years ago,,
my lipos have 80 cycles through them and each has less than 14 ir reading total on both.
thanks again guys on the replys, guess i will watch closer before i mount the case top on the case and check for wires getting in the way!!

going pro , one crash at a time

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05-28-2015 01:14 AM  3 years agoPost 10
EEngineer

rrProfessor

TX

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Ah ha....

Wear and tear issue.....you found the issue...good job..

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05-28-2015 02:03 AM  3 years agoPost 11
artimus

rrKey Veteran

Buckley WA

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How did the wire get kinked? Must of had it apart recently and didnt get the wires back in place?Something moving around? Need to find out what caused it so it doesnt happen again and destroy your ps or charger.

Fly Hard......Team Viagra

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05-28-2015 02:16 AM  3 years agoPost 12
EEngineer

rrProfessor

TX

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How did the wire get kinked?
That PS has 2 lugs for the V+/V- outputs, rather than "banana" jacks.

I think he meant the pos. wire that connected to the PS was crimped, etc.....damaged pos. wire.

And not that internal wires in the PC were damaged.

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05-28-2015 02:39 AM  3 years agoPost 13
flyboy1985

rrApprentice

mohnton pa

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yes im sorry , the pos wire going from the i-charger to the ps was crimped,, the clearance from the top where the pos wire plugs into the ps and the case top was wayyyyy to tight ,
i didnt notice it when i installed it , and two years of vibration and getting tossed around, guess that did it in ,
thanks again guys for the help and input

going pro , one crash at a time

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05-28-2015 03:38 AM  3 years agoPost 14
EEngineer

rrProfessor

TX

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NP, glad you solved your issue....

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05-28-2015 04:24 AM  3 years agoPost 15
EEngineer

rrProfessor

TX

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BTW, flyboy, that's a nice fixed output(adj. by +/- 3V) 24V/40A PS.

And Progressive's price is ~$20 less than the elec. parts dist. Mouser.

2 of those in series, and you have a 48V/40A power source for $400.

Or, 2 in parallel would provide a 24V/80A power source. With it's voltage adjustment, they could be both "dialed" in for operation in parallel.

And it's been reliable for you for 2 years....and this issue was just an external pos. wire fault...and not the PS.

I like it....

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05-28-2015 05:44 AM  3 years agoPost 16
flyboy1985

rrApprentice

mohnton pa

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oh my i charger and ps have stood the test of time , i fly alot , so the case gets moved around a crap load, im more than happy with my charger /ps combo
i do have room for one more ps in my case,,,, hmmmmm ,

going pro , one crash at a time

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05-28-2015 06:03 AM  3 years agoPost 17
EEngineer

rrProfessor

TX

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I think I'll be visiting progressive and get 2...

Have room in my charging case....

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