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Unread 20-10-2014, 08:10
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Battery Connector Color

Our team's charging station is built on a library cart, with the charger on top, and the batteries down below. It charges 8 at a time, and the wiring gets hard to follow. To make it easier to identify which battery is which, I want to put different color Anderson SB50 connectors on. But the colors are not compatible with one another. This means that we would need a bridge between the battery and the robot that changed colors. I don't want to do this because there is a higher chance of a bad connection, so my idea was during competition, we would change the connector on the robot to match the battery color. Have any other teams experimented with this?
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Last edited by TimTheGreat : 20-10-2014 at 08:23.
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Unread 20-10-2014, 08:30
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Re: Battery Connector Color

Why not wrap the connector in different colored tape? Or paint them all white and put big numbers on them?
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Last edited by Foster : 20-10-2014 at 08:32. Reason: Autocorrect help?!?
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Unread 20-10-2014, 08:31
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Re: Battery Connector Color

A simple solution is to use a different color of electrical tape that is attached to the charger in a visible location and then the same color of electrical tape on the Anderson connector of that changer. Really simple, just follow the color trail.
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Unread 20-10-2014, 08:39
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Re: Battery Connector Color

We ordered a dozen red SB-50s and received a dozen grey ones. When we went to plug them in they didn't fit. We just milled down the connector where there was interference and red plugs into grey just fine now. The contacts are what holds them together anyway. I'm not positive about other colors, but contact position should be the same on all of them. You can see our setup here.

Otherwise, what about organizing your wiring a little better so it is easier to trace? Or labeling your ports on the charger and then labeling you battery positions? In the above linked picture, we had a hard time figuring out how we wanted to organize things, but ended up with a visual layout. The batteries are arranged top to bottom by number and on the charger they go from the middle to the out side by position. You can see how 9 and 10 are not lit up on the charger because they aren't in the cart. If we unplugged battery 1 on the bottom left it would turn the light off on the far left side of the charger.
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Unread 20-10-2014, 09:17
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Re: Battery Connector Color

We have electrical tape on them now, and it looks god awful, it peels off, and we don't have 8 different colors. However, we DO have 8 different-colored connectors, and nothing else to do with them. The main reason I want to change the battery color is so they don't go to waste. What about other ideas about what to do with them?
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Unread 20-10-2014, 09:40
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Re: Battery Connector Color

Quote:
Originally Posted by TimTheGreat View Post
We have electrical tape on them now, and it looks god awful, it peels off, and we don't have 8 different colors.
If you just put a small piece of electrical tape on a plastic connector, it is likely to peel off. But if you use the tape as it is designed, wrapping all the way around so that it is stuck to itself, it will stay on for a very very long time.

We also don't have 8 different colors of electrical tape. However, we do have a color printer, and we have nice strong clear tape. Our chargers' connectors are labeled with well-taped paper numbers and colors, with matching paper color collars on the wire and matching numbers and colors on the chargers.
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Unread 20-10-2014, 10:23
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Re: Battery Connector Color

Color heatshrink. Cheap from online, it makes a good, protected connection, and it is good protection. Just put it on before the connector, where the wire goes into the connector. That way its right by the connector so if it ever becomes unplugged, it can easily be recognised as to what motor or whatever it goes to.
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Unread 20-10-2014, 10:44
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Re: Battery Connector Color

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Originally Posted by MrBasse View Post
We just milled down the connector where there was interference and red plugs into grey just fine now.
Do you have a picture of what the connector looks like now that it is milled?
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Unread 20-10-2014, 10:55
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Re: Battery Connector Color

Quote:
Originally Posted by TimTheGreat View Post
Our team's charging station is built on a library cart, with the charger on top, and the batteries down below. It charges 8 at a time, and the wiring gets hard to follow.
or you could dress the wires, to make them easy to follow.
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Unread 20-10-2014, 11:33
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Re: Battery Connector Color

Quote:
Originally Posted by TimTheGreat View Post
Do you have a picture of what the connector looks like now that it is milled?
I'll have to take one when I can get back down to the shop. But just imagine the part the arrow points to in this picture cut down 1/8".

And no that isn't my picture, I borrowed it from google. We haven't managed to fry an SB-50 yet.
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Unread 20-10-2014, 14:00
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Re: Battery Connector Color

I interpret the rules to say that the connector has to be that PN, which means red only.

So all the batteries and the robot itself must have a red connector. My as well then use red on the charger as well, and label/color via some other method.
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Unread 20-10-2014, 14:28
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Re: Battery Connector Color

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Originally Posted by AdamHeard View Post
I interpret the rules to say that the connector has to be that PN, which means red only.
Which rule is that?
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Unread 20-10-2014, 14:35
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Re: Battery Connector Color

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Originally Posted by TimTheGreat View Post
Which rule is that?
R35 in 2014 calls out "SB50". I could be mistaken, but I believe only the red has SB50 as the PN, and the other colors have another letter at the end to denote color (EX, SB50G).
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Unread 20-10-2014, 14:37
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Re: Battery Connector Color

Quote:
Originally Posted by AdamHeard View Post
I interpret the rules to say that the connector has to be that PN, which means red only.

So all the batteries and the robot itself must have a red connector. My as well then use red on the charger as well, and label/color via some other method.
Quote:
Originally Posted by TimTheGreat View Post
Which rule is that?
Quote:
Originally Posted by AdamHeard View Post
R35 in 2014 calls out "SB50". I could be mistaken, but I believe only the red has SB50 as the PN, and the other colors have another letter at the end to denote color (EX, SB50G).
Actually, the 2014 rules don't specify a color. All R35 says is " Anderson Power Products (or APP) Connectors (p/n SB50)", which is available in multiple colors, but different colors don't mate (except for black and grey).

I'm fairly certain that, if asked, the 2014 GDC would have said that only the red connector is allowed, since part of the reasoning of a single connector is to allow all batteries, chargers and robots to be interchangeable across teams.
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Unread 20-10-2014, 18:43
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Re: Battery Connector Color

Quote:
Originally Posted by cgmv123 View Post

I'm fairly certain that, if asked, the 2014 GDC would have said that only the red connector is allowed, since part of the reasoning of a single connector is to allow all batteries, chargers and robots to be interchangeable across teams.

Makes sense. Well, I think we are going to bag the idea, but if anyone has an idea to make use of the 80 or so connectors we have, please share.
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