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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › New charger set up. Look any safer?
04-03-2015 05:49 PM  6 years ago
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McKrackin

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Lucasville,Ohio

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New charger set up. Look any safer?
Some of you "flamed" my dangerous looking charger rig.
Specifically the squids.

I only have two flight packs. Four lipos in two series sets.

I have always kept only two.
This is why I chose this paraboard that is made for four 6S packs with JST XH balance leads.
No extra sockets and no unused ports.

I literally never use the word literally right.
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04-03-2015 05:51 PM  6 years ago
McKrackin

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Lucasville,Ohio

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I literally never use the word literally right.
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04-03-2015 06:01 PM  6 years ago
Stephen Born

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USA

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...
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04-03-2015 06:03 PM  6 years ago
McKrackin

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Lucasville,Ohio

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Yep.
200W mega.
I've had it since I started the hobby in 2007 or so.
I literally never use the word literally right.
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04-03-2015 06:11 PM  6 years ago
Stephen Born

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04-03-2015 06:55 PM  6 years ago
artimus

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Buckley WA

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Thats a given......always babysit a charging pack.Fly Hard......Team Viagra
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04-03-2015 07:47 PM  6 years ago
ssmith512

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Indianapolis, IN USA

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Hope that is flame retardant towel!!

j/k!!

Looks nice. I like that board from Progressive. I had not seen those till you posted. I think I am gonna get one of those.
Steve
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04-03-2015 08:47 PM  6 years ago
Aaron29

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USA

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Thats a given......always babysit a charging pack.
A given? I know very few people that won't occasionally sneak a flight in while a pack is charging. And if not that, most are 15 feet or more away from it, BSing with buddies and never paying attention to it until they hear the end charge song.

I watch a lipo closely during the first couple dozen cycles. But once I've broken in a battery and seen reliable operation from it, I personally engage in the guilty pleasure of just occasionally checking IR and balance trends.

I don't babysit, but I do mitigate the risk. A battery with a high IR cell is going into the trash. A battery that doesn't balance well is going in the trash. I don't fly my batteries below 3.8V. I try to mitigate the risk as much as possible.

But babysit, I cannot. Life is too short.

Luckily, the batteries, if they cook off, will burn only themeslves and maybe a bit of the carpet off of the metal outdoor bench. I charge ONLY at the field. Basically I go on the assumption that they will burn. There's no nitro, models, etc. near them. They'd burn themselves and maybe the wire. I'd have to replace the carpeting on the bench.

In a car, on a hood, near flammables, near people, in a garage I DO NOT. In the off chance I charge at home, it's in the fireplace.

Basically the lipo can cook off all it wants. Good thing, too, because there's a good chance I won't terminate the charge if it puffs because I may not see it. I think the risk of a battery that is operated properly and has good cells just spontaneously combusting on a proper charger is low. The risk is the price I pay to stay with electric. If all charge cycles truly must be monitored like a scientific experiment, I could never stay with electric. This is a hobby and is supposed to be fun. On a good day I fly 10 times and that'd be over three hours looking at a battery.

That's just me. I do agree that babysitting is best policy, but I just can't. Or it's back to nitro. Maybe I need to mature in this aspect, but it doesn't help that I'm in company that does the same! Who knows. I'll let you all know if this regimen ever lets us down, for sure.
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04-03-2015 09:14 PM  6 years ago
Aaron29

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USA

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To the OP. That board is the best there is. Probably the safest, too. Fuse protection everywhere. Even on the balance taps.
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04-03-2015 11:16 PM  6 years ago
ICUR1-2

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Ottawa, Ontario

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looking good

I only babysit if I'm charging in house or while waiting anxiously at the field for the next flight.
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04-03-2015 11:49 PM  6 years ago
flyboy1985

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mohnton pa

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+1 glad to see youve ditched that ugly "squid" and came over to the dark side going pro , one crash at a time
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04-03-2015 11:51 PM  6 years ago
flyboy1985

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mohnton pa

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and to add to what aron said, i belive the balance boards have built in thermal fuses ,, atleast mine from progressive did, and yours looks about right as well..going pro , one crash at a time
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04-04-2015 12:10 AM  6 years ago
McKrackin

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Lucasville,Ohio

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I don't sit and watch them charge but they're chrging in a steel pan type cart away from anything flamable. I wouldn't walk away from them in the house...which is why they're outside.

But yeah...you should be careful or take steps to contain a problem.
I literally never use the word literally right.
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04-04-2015 12:19 AM  6 years ago
flyboy1985

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mohnton pa

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heres my setup,, i got "the solution "combo from progressive ,, took my old dewalt tool case, gutted the inside,,, installed the PS under the acrilic ,, i seperated the in exaust from the out, so its always getting fresh cool air, i have a havy duty fan i installed on the side doing that duty,, as you can see in the top left corner near the charger , i tryed to drill a hole after i already glued down the acrilc , and it cracked it so i had to gunk it up ,,, but all in all id say not bad for my first case make
going pro , one crash at a time
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04-04-2015 01:21 AM  6 years ago
McKrackin

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Lucasville,Ohio

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Cool.I literally never use the word literally right.
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04-04-2015 11:38 AM  6 years ago
MattJen

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UK / GRAVESEND KENT

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Can I ask a question ?

I see a lot use those parallel boards, are they a good idea ? how does the board know if one cell on a pack is lower ? so if you charge a 3/4 level pack and a lypo with 25% capacity how does the lower charged battery not drag down the higher filled battery ?

The reason I ask is I am now certain my nasty fire which wiped out everything I had was down to using a parallel board.

So unless you plug each balance lead into the charger of what benefit is a parallel board ?

I am building an Electric 700 in jetranger fuse which means I have got to get over the Lypo fear I have, hence the reason for my questions.. Apologies to McKraking if it seems I am hijacking this thread..

Matt

All The Best
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04-04-2015 12:31 PM  6 years ago
Aaron29

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USA

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As soon as you hook up the batteries in parallel the fuller battery essentially charges the weaker through the balance taps. Electrons flow without even starting the charge. Most balance taps and batteries can accept this but why not have more control by ensuring this flow is minimal with equal states of charge before hooking up? It's not generally recommended to try charging a full and a weak one.

20% vs. 40% isn't a big deal but I wouldn't hook up a full and empty one.

The board doesn't know anything and most don't fuse the balance taps. The one in the OP is special.
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04-04-2015 01:11 PM  6 years ago
flyboy1985

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mohnton pa

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i would have to disagree with aron , i belive most if not all balnce taps by progressive rc and name brand are thermal fuesed, i think the off brand , and knockoff's do not have thermal fueses ,, and man am i glad for the fuses because i cannot tell you how many times ive plugged the balnce tap in the wrong plug , and once last year did i connect a lipo wrong,,(thank god for the 40 amp fuse) i had to resolder a new connector (welded together) to my lipo and replace the fuse , easy ,, and not to mention my house and everything in it isnt burned down,, and i thank the thermal fuses and fuses for that.. you can never count out human error.. i think fueses on boards is the new anti -spark on an esc,,

man im glad i had that crutch as i was leaning the ins and outs of lipos
going pro , one crash at a time
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04-04-2015 01:25 PM  6 years ago
fastflyer20

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N. Tonawanda, NY

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Mattjen
I followed your ordeal, glad to see your still into heli's after that!

I use balance boards occasionally when pressed for charge time, but the dual port chargers make it much easier to charge each pack individually, check balance and get a true IR reading. The iCharger Duo series makes this easy.
Tom
CAUTION - my posts are based on my experiences, yours may be different.
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04-04-2015 01:26 PM  6 years ago
Aaron29

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USA

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i would have to disagree with aron ,i belive most if not all balnce taps by progressive rc and name brand are thermal fuesed
You're free to believe otherwise, but everyone should know the truth of the matter.

I bought this one...

http://www.progressiverc.com/parall...jst-xh-ec5.html

...from progressive and melted the balance circuitry. It was a series hookup fail, totally my fault, but there was no circuit protection. So I can attest from experience that short of melting the wiring, there's no fuse protection on some of what's sold by progressive.

If it doesn't advertise the balance tap fusing it probably doesn't have it. The ones designated as "safe" boards have it. Their new modular board has it. But not all their offerings have it. Stating that all boards from progressiverc have protection is bad guidance. Buyer beware.

To be clear to the other question, not saying a proper parallel hook up will do this, I'm just saying that there's no fuse protection between parallel taps on many boards. I still have this board, as I replaced the fried one with the same model, but my next one will have the fuses and be idiot proof. I no longer claim to be above idiocy and need these crutches!
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