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-   -   Problem Can it be fixed no soldering? (https://www.rctech.net/forum/radio-electronics/962077-problem-can-fixed-no-soldering.html)

InsaneRC 09-17-2016 09:04 PM


Originally Posted by blarks (Post 14674111)
Thats them.

Thanks for the help fellow RCtechers canceled other ones and placed order for those now it's a waiting game what fun :lol:

(Stupid Kindle stop autocorrecting)

ta_man 09-18-2016 07:12 AM


Originally Posted by InsaneRC (Post 14673651)
Wow this is all confiscated. I will probby GO the crimping route since it seems easier. Also I ordered this battery on EBay so I don't think sending back for repairs is going to work and the battery is this

http://www.ebay.com/itm/401189347965...%3AMEBIDX%3AIT

That is the new one I'm getting but different seller

So now I can get a crimp tool for 20$ on amain.com I hope this is the right tool for the job

https://www.amainhobbies.com/protek-...k-1999/p503208

Now I am having trouble finding the right pins and plugs. Of course when I get the new battery in the mail I can just copy the plug from there.

A servo lead crimping tool will not be able to crimp the terminals for the JST-HX balance connector. (Unless they made it too small to properly crimp a servo lead terminal.)

The length of the crimp area on a JST terminal is about 0.030", The crimp area on a servo lead terminal is about 0.075". So if you try to crimp a JST balance connector terminal with a servo lead crimping tool you will mash most of the JST connector.

InsaneRC 09-18-2016 11:24 AM


Originally Posted by ta_man (Post 14674405)
A servo lead crimping tool will not be able to crimp the terminals for the JST-HX balance connector. (Unless they made it too small to properly crimp a servo lead terminal.)

The length of the crimp area on a JST terminal is about 0.030", The crimp area on a servo lead terminal is about 0.075". So if you try to crimp a JST balance connector terminal with a servo lead crimping tool you will mash most of the JST connector.

UGH.....could I use needle nose pliers? Can't cancel that order from amain now so I will be stuck with that tool at least if I have servo leads break or need to shorten them I have the tool for it...but if someone finds a cheap crimp tool that will work I might be able to save my ass and ruin the whole thing...

ta_man 09-18-2016 01:14 PM


Originally Posted by InsaneRC (Post 14674614)
UGH.....could I use needle nose pliers? Can't cancel that order from amain now so I will be stuck with that tool at least if I have servo leads break or need to shorten them I have the tool for it...but if someone finds a cheap crimp tool that will work I might be able to save my ass and ruin the whole thing...

If you have some needle nose with a tip only 0.030 (30 thousandths) wide you can try it.

I suggest that before you do it on your battery, you try to crimp a terminal on a piece of servo lead wire and then try to pull the terminal off. If you can pull it off, you have not actually crimped it and poor connection on the balance leads could have the charger misread the balance voltages and not properly balance the pack.

InsaneRC 09-18-2016 01:35 PM


Originally Posted by ta_man (Post 14674706)
If you have some needle nose with a tip only 0.030 (30 thousandths) wide you can try it.

I suggest that before you do it on your battery, you try to crimp a terminal on a piece of servo lead wire and then try to pull the terminal off. If you can pull it off, you have not actually crimped it and poor connection on the balance leads could have the charger misread the balance voltages and not properly balance the pack.

Ok well I've been finding thousands of crimp tools but they all seem to read for servos. Just hope needle nose pliers cut it....

blarks 09-18-2016 03:58 PM

You may be able to get away with only putting the end of the terminal that needs crimping into the crimper, not the whole piece, will be fiddly but it should work. I usually close the gap a touch with the wire in there to hold it in place then crimp it. As Ta man suggested definitely try it on some scrap wires first.

InsaneRC 09-18-2016 04:15 PM


Originally Posted by blarks (Post 14674900)
You may be able to get away with only putting the end of the terminal that needs crimping into the crimper, not the whole piece, will be fiddly but it should work. I usually close the gap a touch with the wire in there to hold it in place then crimp it. As Ta man suggested definitely try it on some scrap wires first.

I have a nice set of curved needle nose pliers that I am going to try and use and they don't have the jagged teeth like my straight one's are also I don't have small scrap wires I have 12g wires. Maybe if I have extra servo wires or something I could practice on. Anyone one want to ship me free wires? :lol:

ta_man 09-19-2016 03:23 PM


Originally Posted by InsaneRC (Post 14674911)
I have a nice set of curved needle nose pliers that I am going to try and use and they don't have the jagged teeth like my straight one's are also I don't have small scrap wires I have 12g wires. Maybe if I have extra servo wires or something I could practice on. Anyone one want to ship me free wires? :lol:

Go to the LHS and ask them for some wire from their trash pile.

If you want to send me a stamped SASE I'll send you some wire, but that's about $1 for two stamps when the LHS will probably give you some for free.

InsaneRC 09-20-2016 04:08 PM


Originally Posted by ta_man (Post 14676181)
Go to the LHS and ask them for some wire from their trash pile.

If you want to send me a stamped SASE I'll send you some wire, but that's about $1 for two stamps when the LHS will probably give you some for free.

:lol: sure :rolleyes: think I have some spare wires just haven't looked waiting for the parts to come first take about a month since they are coming from China

InsaneRC 09-27-2016 02:51 PM

Well it took 5 connectors and 20 pins but I did it hope I don't have to do it again but the balance lead is real short too short I believe but everything is reading fine. Hope I crimped them good. Next time I'll just trash it or have someone fix for me.

LVNeptune 09-27-2016 04:18 PM

was going to say make sure to use a DMM and check every pin before you try and use it. First pin is always ground. You should be able to probe it easily

InsaneRC 09-27-2016 04:56 PM


Originally Posted by LVNeptune (Post 14684882)
was going to say make sure to use a DMM and check every pin before you try and use it. First pin is always ground. You should be able to probe it easily

What the hell is that? I tested each one works just fine it's charging right now.

mushroomed 09-27-2016 05:11 PM

A DMM is a Digital Multi-Meter, you can use the multimeter probes to check the continuity of each connection.

Good job getting it done, but after 5 connectors and 20 pins it sounds like it might have been easier to solder it. Something else that can really make soldering easier is a small table top vice or a 'helping hands' setup for soldering.

https://images-na.ssl-images-amazon....8L._SY300_.jpg

InsaneRC 09-27-2016 05:25 PM


Originally Posted by mushroomed (Post 14684939)
A DMM is a Digital Multi-Meter, you can use the multimeter probes to check the continuity of each connection.

Good job getting it done, but after 5 connectors and 20 pins it sounds like it might have been easier to solder it. Something else that can really make soldering easier is a small table top vice or a 'helping hands' setup for soldering.

https://images-na.ssl-images-amazon....8L._SY300_.jpg

I am planning on getting a good soldering station and some good jigs but I think I am done with soldering for now and also didn't use a DMM I just plugged into my blinky balancer plus my multi charger shows each cell voltages. So I think I did pretty good.


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