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Battery ends/connectors

Old 02-05-2021, 12:59 AM
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billkater
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Default Battery ends/connectors

Do you all with multiple planes use the same style battery connector? Or do you use what ever is on the plane when you get it?

I have 2 planes I flew 14 years ago. And 2 more on the shelf or in the middle of a build. I know I have 3 different battery connectors, haven't opened the 4th plane to see. I have a mini tamiya, a full size tamiya, and a JST. Should I convert each one over to the same type connector provided the connector is rated for the power draw? Would make charging easier. Also make hooking up my watt meter easier.
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Old 02-05-2021, 01:33 AM
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firemanbill
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Yes, life will be so much easier when you do! You will get a number of opinions on what kind though, so get what works for you.

I use Anderson Power poles for everything 3S and up. The power poles are great as they are crimped not solder. A bit of an initial investment but I am so happy I did that. no ,more solder and heat shrink or melted housings from getting them too hot.

I still have a couple micros that use the JST's so just left them due to size.
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Old 02-05-2021, 05:05 AM
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Wildflyer
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As Bill says you will get many answers.
I like XT60's for most of my planes, and many batteries already come with them.
XT30 on little stuff, XT 90's on a couple of big ones.
JST on tiny ones
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Old 02-05-2021, 06:02 AM
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billkater
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Default Went with XT30

I pulled the trigger and ordered some XT30s. I will use those and XT60s as needed. I like the design on how they solder up. Appears they will hold better than Deans. And I will stay with JST on any small planes I get.
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Old 02-05-2021, 01:04 PM
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solentlife
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Yes ... people have preferences and TBH - they ALL work ....
But I will say this : Despite Tamiya connectors having been the darling of the NiCd days in cars ... they are unreliable for flying use. The internals are 'loose' and can cause intermittent contact. I know to my own cost !!

I was a DEANS convert for ages ... and still have odd model where space is limited but I need the amp capability. But my GoTo now is XT60 and with small lower power stuff - the XT30 is brilliant. I am seriously thinking to swap out a lot of my XT60's to 30's.

My chargers ..... I cut the main charge lead and used screw terminals to add various adaptor leads with connectors fitted. This means that I can charge literally any connector equipped item .... You can buy the Mutli connector at Hobby King - but there are a couple of connectors missing on it ... which made me create my own.

On subject to connectors .............. having had some mishaps when soldering battery leads to connectors held in a vice !! The sparks are amazing ! I now have a wood block with connectors glued into the block. The block can be on the bench or held in vice. The connector to be soldered is then plugged into its mate on the block and you solder away without any fear of shorting ...
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Old 02-05-2021, 01:30 PM
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ron_van_sommeren
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Originally Posted by firemanbill View Post
... I use Anderson Power poles for everything 3S and up. ...
Connectors don't care much about voltage Bill, apart from sparking of course. (Simple/cheap antispark method.)
But connectors care a lot about current.


Connector tests/ratings, plus pictures
translate...www.elektromodellflug.de/hochstrom-st.-bu..html
Older version of that page, contains some other connectors
translate...www.elektromodellflug.de/oldpage/hochstromst/hochstromstecker.htm
Excellent site, do have a look at the controller-, motor-, charger-, power supply-, battery- etc. tests.


Connector soldering jig, keeps pins straight in housing while soldering.
wattflyer.com/forums/showthread.php?t=79119

Connector soldering videos
www.innov8tivedesigns.com
→ resources
→ video classroom
→ soldering videos

Also keeps the pins aligned should housing soften up a bit.
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Old 02-05-2021, 02:57 PM
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firemanbill
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Originally Posted by ron_van_sommeren View Post
Connectors don't care much about voltage Bill, apart from sparking of course.
I understand that. Been doing this a long time. I was referring to size, anything smaller than a 3s doesn't lend itself well to the physical size of the power pole connectors.
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Old 02-05-2021, 03:25 PM
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solentlife
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Thanks Ron ... the wood block is what I posted a way back !!

I would advise not to use the same glue as I used though ... it has be heat resistant because of the metal that some have touching the glue. I used PU glue ... should have used heat proof epoxy.
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Old 02-05-2021, 03:28 PM
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I know this may not seem important - but it has been a 'life-saver' for me on more than one occasion at flight field. Its good to have same connectors as others you fly with - or at least adaptors ..

You can then charge batterys ... loan or lend battery ... test in event of faults etc.
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Old 02-05-2021, 05:57 PM
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ron_van_sommeren
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Originally Posted by firemanbill View Post
I understand that. Been doing this a long time. I was referring to size, anything smaller than a 3s doesn't lend itself well to the physical size of the power pole connectors.
I know you know Bill, but it might give newbies the wrong idea.
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Old 02-06-2021, 06:20 PM
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Wildflyer
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When I solder a new connector on a battery. I only do one side at a time.
Get one wire out of the way, maybe tape it to the side of the battery, then solder the other wire and install the heat shrink tube (hope you remembered to put it over the wire first)
Then when that side is safe, you can do the other side.

If the battery wires touch together they may spark or they may WELD themselves together, you will NOT like that!!

I have a rig that holds both the connector and the wire before I solder.
I leave it alone until the solder cools so I don't get a cold solder joint.
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Old 02-07-2021, 10:29 PM
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firemanbill
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Originally Posted by solentlife View Post
I know this may not seem important - but it has been a 'life-saver' for me on more than one occasion at flight field. Its good to have same connectors as others you fly with - or at least adaptors ..

You can then charge batterys ... loan or lend battery ... test in event of faults etc.

Be careful with adapters and make sure you use heavy enough wire if you do. I lost my E-Flite Prometheus a couple years ago at a fly in. One of the battery vendors, and friend of mine, wanted to do a side by side comparison with the Potenza batteries I was using and the ones he was selling. Flew mine then realized he had EC5's on his so I hastily grabbed an adapter I knew I had that I used for charging before changing everything over. didn't think about the wire size. Learned that lesson the hard way.

I keep this adapter as a reminder.
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