Sidewayskiwi
An ideas why balance leads melt ?
Second one that's done it 
Managed to land this one
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solentlife
Just noticed your plug ... strange one ?

What do you have connected to the balance lead ? The lead is not designed to carry more than about 1 - 2A .... I know we have twin adaptors etc. for charging that use the balance leads ... but they do advise NOT to shove high rates through !!
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Sidewayskiwi
[QUOTE username=solentlife userid=6600503 postid=1310183941]Just noticed your plug ... strange one ?

What do you have connected to the balance lead ? The lead is not designed to carry more than about 1 - 2A .... I know we have twin adaptors etc. for charging that use the balance leads ... but they do advise NOT to shove high rates through !![/QUOTE
I only have a charger that goes through the balance (just lead) 
Will turn down the amp supply
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solentlife
Melted insulation like that indicates too high power going through the leads ... but what I find interesting is that wire 2 is seriously melted compared to the others. #4 which is the -ve for total battery is hardly touched ?

balance burn.jpg 

I assume that you pulled the wires apart and #2 then split the insulation after being stuck to #1 ? It seems to indicate that #1 lead heated up ... melted #2 next to it .. #3 got involved as well ... 

If #2 is truly more melted than the others - then I think maybe your balance charger was trying to bring up a low cell and most amps were going there 

Given the price of a Programmable Charger such as an Accucel 6 ... B6 mini ... etc. is actually as chaep as many batterys we use - one would give you higher rate charge .. proper balance function without the high ampage through light leads.

What charger are you using ? Name ? What battery size (I can see its a 3S) ... and what amps were you charging at ?
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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DualDesertEagle
This is why I prefer my Sigma EQ Mini, which charges the battery using both connectors. The main one of course for charging and the balance one for balancing either during the charge or afterwards, not sure about that. But from the readings on the display during charging I'd say it balances while charging.

If the battery can take it I can charge at up to 5 amps with that thing. Pretty sure that would cause the same thing if it only used the balance cable to charge.
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solentlife
 I have a couple of the 1A balance lead only chargers that come with RTF models - I use them for my TX 2S and 3S batterys ... old batts in flashlights I converted etc. But not for serious flight stuff. They dont charge to 100% ... they tend to stop and then batt falls back to about 96~%

I have a bench with two Accucel 6 80W, 1 B6 Mini 60W and an older standard B6 charger  ... I have spare old B6 and a faulty B6 Mini (as long as both PC and 12v power are connected it works fine ...).  Gives me redundancy as well as charging 4 batts at same time.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Sidewayskiwi
solentlife wrote:
Melted insulation like that indicates too high power going through the leads ... but what I find interesting is that wire 2 is seriously melted compared to the others. #4 which is the -ve for total battery is hardly touched ?

balance burn.jpg 

I assume that you pulled the wires apart and #2 then split the insulation after being stuck to #1 ? It seems to indicate that #1 lead heated up ... melted #2 next to it .. #3 got involved as well ... 

If #2 is truly more melted than the others - then I think maybe your balance charger was trying to bring up a low cell and most amps were going there 

Given the price of a Programmable Charger such as an Accucel 6 ... B6 mini ... etc. is actually as chaep as many batterys we use - one would give you higher rate charge .. proper balance function without the high ampage through light leads.

What charger are you using ? Name ? What battery size (I can see its a 3S) ... and what amps were you charging at ?

HK over the counter charger 
Runs off car batteries (mains supply side of charger died @ a year ago)
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solentlife
"HK over the counter charger"

??

Brand name / version ?? 

Would you consider getting something a little better ?? 

Note that usual advice is to get a 12v 5A power supply for a 50 - 60W charger ... but in fact that's not so good as often it will be punching out at near full whack. After a while it dies ... probably same true for your Mains supply side of your charger ... 

I do not recc'd buying the dual power Mains + 12V chargers for that reason. I have had two and both had mains side die after about 1 year. I now only buy 12V input chargers ... 
What power supply ? I buy 12V 10A power supplies so I have plenty of spare capacity from it and its not being pressed hard. Better would be 15V ... but they tend to start getting a bit pricey.

All my personal opinion.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Sidewayskiwi
solentlife wrote:
"HK over the counter charger"

??

Brand name / version ?? 

Would you consider getting something a little better ?? 

Note that usual advice is to get a 12v 5A power supply for a 50 - 60W charger ... but in fact that's not so good as often it will be punching out at near full whack. After a while it dies ... probably same true for your Mains supply side of your charger ... 

I do not recc'd buying the dual power Mains + 12V chargers for that reason. I have had two and both had mains side die after about 1 year. I now only buy 12V input chargers ... 
What power supply ? I buy 12V 10A power supplies so I have plenty of spare capacity from it and its not being pressed hard. Better would be 15V ... but they tend to start getting a bit pricey.

All my personal opinion.

tried but its a weird/orphan style and type of double male bullet plug (always looking ) but yes need a better balance charger that plugs into my XT60 and balance lead at the same time
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