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Post  Woody Sun Jun 12, 2022 6:15 pm

Well somethings go badly and others go well.
I was in the electronics store yesterday and saw just what I needed to make a decent battery box.
I had played around taping two batts together and soldering leads to them but it all looked a bit gash.
Also tried converting a two D cell battery holder but that proved to be a pain.
Came across two single D cell holders with leadouts, Banana plug sockets withSuper Deluxe Turbo GTI Cox Battery Box !!! Img_2101
Super Deluxe Turbo GTI Cox Battery Box !!! Img_2100
plugs and a box.
So here is the result.
Everything just went to plan and finished and tested within the hour.
Isnt life great when things go well?
Woody.
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Post  Ken Cook Sun Jun 12, 2022 7:01 pm

Woody, I mentioned this on here some years back. One of my flying buddies made something very similar to what you built there. His starter battery had 4 D cells.   On the ride home one evening , something shorted across the jack outlets and it ended up catching fire. Not only did it do extensive damage to the car, it also burned his hand seriously. Seeing how you have both terminals exposing metal on the top of your box reminded me exactly what he had. From that point on, I use a fusible link for all of my starter batteries.
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Post  Woody Sun Jun 12, 2022 8:36 pm

Ken Cook wrote:Woody, I mentioned this on here some years back. One of my flying buddies made something very similar to what you built there. His starter battery had 4 D cells.   On the ride home one evening , something shorted across the jack outlets and it ended up catching fire. Not only did it do extensive damage to the car, it also burned his hand seriously. Seeing how you have both terminals exposing metal on the top of your box reminded me exactly what he had. From that point on, I use a fusible link for all of my starter batteries.
Crickey Ken!
Thanks for pointing that out!
I was quite chuffed with it till you wrote that!
I am very grateful for your advice.
I will do something about it.
Okay ....My description was a lie .
Laughing Laughing Laughing
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Post  andrew Sun Jun 12, 2022 10:44 pm

Woody wrote:..........
I was quite chuffed with it till you wrote that!
...
Okay ....My description was a lie.
 

Quite the contrary -- your box looks great!  Here's a couple of options to consider that have recessed metal parts:

Digikey - Keystone Electronics

Digikey - Cinch Connectivity

Red shown, but black is available as are different tab types. Where I live, this type of inventory is non-existent, but these jacks, as you well know, may be found all over the interweb.
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Post  KariFS Mon Jun 13, 2022 1:15 am

Another option would be to install a 5-10A fuse to the circuit. There's plenty of room inside the box for an inline fuse holder. Might be good to sacrifice one or two fuses to see that it won't blow when you use it, but on the other hand, blows when shorted.

Nice setup by the way Beer Cheers
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Post  davidll1984 Mon Jun 13, 2022 7:05 pm

It's a good idea but to avoid a short circuit having something on the batteries Because the only thing that protects the negative from the batteries is the little plastic envelope on it If it moves it could come into contact with the positive terminal possibly I should make myself a new pack mine is very used
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Post  Woody Tue Jun 14, 2022 1:20 am

davidll1984 wrote:It's a good idea but to avoid a short circuit having something on the batteries Because the only thing that protects the negative from the batteries is the little plastic envelope on it If it moves it could come into contact with the positive terminal possibly I should make myself a new pack mine is very used

I am not sure what you mead David?
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Post  davidll1984 Tue Jun 14, 2022 9:18 am

What I want to explain is that now the batteries have an envelope made of metal And that the negative terminal is on the whole surface Super Deluxe Turbo GTI Cox Battery Box !!! 16552112
And if the pack moves inside it could come into contact with the positive terminal with the negative on the outside and only the plastic film with the name number of c and voltage which protects from a short circuit I prefer to use a small pack that can be inserted into the sleeve of a long-sleeved vest Over time I learned that the glow plug clip tends to be short-circuited So I got a little piece of foam That I put on the end Super Deluxe Turbo GTI Cox Battery Box !!! 16552113
Ok it's very ugly but functional space-saving never forget behind never short circuit
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Post  Levent Suberk Tue Jun 14, 2022 9:39 am

Hi David, steel case of a battery is positive, not negative.
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Post  gkamysz Tue Jun 14, 2022 10:35 am

Levent Suberk wrote:Hi David, steel case of a battery is positive, not negative.

Depends on the type of battery!!
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Post  Levent Suberk Tue Jun 14, 2022 10:52 am

gkamysz wrote:
Levent Suberk wrote:Hi David, steel case of a battery is positive, not negative.

Depends on the type of battery!!

Alkaline battery:

https://www.micropower-battery.com/how-does-an-alkaline-battery-work/
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Post  KariFS Tue Jun 14, 2022 11:26 am

Very good point David! I didn’t think of that.
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Post  davidll1984 Tue Jun 14, 2022 12:44 pm

Conventional batteries are less dangerous compared to the new lithium ion which is manufactured in a very similar way to nicd But with much more power to ignite wires or cause serious injury And frankly often the plastic wrapping around it is very thin, easy to puncture or tear And yes it is possible to have one or the other with positive or negative expose inside the battery envelope It depends on the manufacturer I remember a particularly strong battery model the pannasonic evolta was my favorite now impossible to find Sad Doh! It was the cheapest and yet the best battery that I had ever used. Mad It's always the same thing when I find something super good it becomes impossible to find One of the only thing that remains that I can have new without problem a good old COX engine is for one of these reasons that I like this brand This Site Rocks! Small Cox Logo Babe Bee .049 cheers
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Post  Woody Tue Jun 14, 2022 4:27 pm

davidll1984 wrote:What I want to explain is that now the batteries have an envelope made of metal And that the negative terminal is on the whole surface Super Deluxe Turbo GTI Cox Battery Box !!! 16552112
And if the pack moves inside it could come into contact with the positive terminal with the negative on the outside and only the plastic film with the name number of c and voltage which protects from a short circuit I prefer to use a small pack that can be inserted into the sleeve of a long-sleeved vest Over time I learned that the glow plug clip tends to be short-circuited  So I got a little piece of foam  That I put on the end Super Deluxe Turbo GTI Cox Battery Box !!! 16552113
Ok it's very ugly but functional space-saving never forget behind never short circuit
Thanks David for explaining that.
The battery holders cannot move as they are glued to the base of the grey box housing.
The terminals can be swapped over for insulated ones.
The whole was intended to be as simple as possible yet sturdy and the batteries easily replaced.
I will just be careful in the interim.
Woody.
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