Nike Mag V2 Mod Discussion (Page 58 Shopping List)

[DL4567]

Re: Nike Mag V2 mod discussion and builds

ok guys i completed one shoe completely (aside from ironing the ribs) I am using a rechargeable 9v battery that I got from ebay(details on pic). I used Jedifyfes wiring diagram and just added a female DC pin and diode. I let the shoes sit for a few hours until they died, then plugged em in and they lit right up(this means its wired right). I'll have a full charge tomorrow and let the shoes sit to see how long they last.

Nik, did you ever determine how long all the lights run on a full charge with that ebay 500mah blue 9v battery?

 

[kingtheydon]

Re: Nike Mag V2 mod discussion and builds

I like the idea of removable batteries as well. I'd see if you can get a female socket to fit the plug of the PS3 controller battery. Being a SONY product, you probably won't be able to as they tent to make all their stuff proprietor.

If you can get these, get 4 and make your charger to have the same socket as well. Even if you can't get a part to the fit the SONY one and you have to clip it and replace it with a generic part, I would still get 4 sockets, two for the shoes and 2 for the charger with the 2 plugs on the batteries.

Nah the connectors are just normal 2mm pitch 2 way connectors/headers.

Example below. Can buy them from anywhere like ebay etc I imagine.

B2B-PH-K-S(LF)(SN) - JST (JAPAN SOLDERLESS TERMINALS) - HEADER, TOP ENTRY, 2WAY,2MM | Farnell United Kingdom


Found some on fleabay you want 2 way 2mm pitch ideally.

http://www.ebay.co.uk/itm/10-2Way-W...271?pt=LH_DefaultDomain_0&hash=item460d1d6657

 

[cavx]

Re: Nike Mag V2 mod discussion and builds

Nah the connectors are just normal 2mm pitch 2 way connectors/headers.

Example below. Can buy them from anywhere like ebay etc I imagine.

B2B-PH-K-S(LF)(SN) - JST (JAPAN SOLDERLESS TERMINALS) - HEADER, TOP ENTRY, 2WAY,2MM | Farnell United Kingdom

Well that is good to know. I need to source these batteries soon.

 

[kingtheydon]

Re: Nike Mag V2 mod discussion and builds

the boards are for parallel, negative on the top, positive below.

all i did was get electrical cable strip the plastic coating off it, solder it in a row all the negatives then solder all the positives then for each row i linked them up.

I personally will be using 1x 100ohm resistor as i really don't see the difference using 3 separate but if anyone wants to elaborate on this be my guest.

I thought id come back to this point seeing as im a little more awake this morning then I was last night and try to explain as best I can!...

There is a slight flaw with using 1 resistor sharing the "load/current" for the whole circuit. As all the leds are wired complete in parallel if one LED were to fail this would then increase the total current running through every other LED in the circuit, which could then start to take out those LEDs too.

Plus using one resistor you need a relatively large wattage one which can and will generate slightly more heat then splitting them up into 3 smaller "circuits" using 1 resistor per bank of LEDs you can get away with smaller wattage ones. Heat is wasted energy.

So If your using 12 leds off a 3.7v supply the total resistor need for the whole array is 28ohms (calculated) for a current of 20ma per each of the 12 LEDs and with a forward voltage of 2.2V. To be safe split the 12 LEDs into blocks of 4 and use a 10-20ohm per each block of 4.

That way if an led were to fail you would only damage 3 more maximum rather then the whole block of 11/12 LEDs. Its just a bit safer and a safe practice on how to do things.

If running off a 9V supply then you would require around a 100ohm resistor per each bank of 4 to be safe. And again to be safe around 1watt otherwise the resistor can get frigging hot.

But it can also depend on what voltage your running off of course.

Edited..

Here is a good tool to work out resistance of parallel and series LEDS.

http://www.hebeiltd.com.cn/?p=zz.led.resistor.calculator

 

[NikWink]

Re: Nike Mag V2 mod discussion and builds

Nik, did you ever determine how long all the lights run on a full charge with that ebay 500mah blue 9v battery?

I'll have an answer for you in a few hours.

 

[airair]

Re: Nike Mag V2 mod discussion and builds

I thought id come back to this point seeing as im a little more awake this morning then I was last night and try to explain as best I can!...

There is a slight flaw with using 1 resistor sharing the "load/current" for the whole circuit. As all the leds are wired complete in parallel if one LED were to fail this would then increase the total current running through every other LED in the circuit, which could then start to take out those LEDs too.

Plus using one resistor you need a relatively large wattage one which can and will generate slightly more heat then splitting them up into 3 smaller "circuits" using 1 resistor per bank of LEDs you can get away with smaller wattage ones. Heat is wasted energy.

So If your using 12 leds off a 3.7v supply the total resistor need for the whole array is 28ohms (calculated) for a current of 20ma per each of the 12 LEDs and with a forward voltage of 2.2V. To be safe split the 12 LEDs into blocks of 4 and use a 10-20ohm per each block of 4.

That way if an led were to fail you would only damage 3 more maximum rather then the whole block of 11/12 LEDs. Its just a bit safer and a safe practice on how to do things.

If running off a 9V supply then you would require around a 100ohm resistor per each bank of 4 to be safe. And again to be safe around 1watt otherwise the resistor can get frigging hot.

But it can also depend on what voltage your running off of course.

Edited..

Here is a good tool to work out resistance of parallel and series LEDS.

LED Resistor Calculator

hi
if i wire the 10ohm resistors you sent, in series with the 9v battery
they should be ok?

thanks

 

[kingtheydon]

Re: Nike Mag V2 mod discussion and builds

Yes but use 1 per block of 4 leds (as per my pm)

 

[Pinn]

Re: Nike Mag V2 mod discussion and builds

Nah the connectors are just normal 2mm pitch 2 way connectors/headers.

Example below. Can buy them from anywhere like ebay etc I imagine.

B2B-PH-K-S(LF)(SN) - JST (JAPAN SOLDERLESS TERMINALS) - HEADER, TOP ENTRY, 2WAY,2MM | Farnell United Kingdom


Found some on fleabay you want 2 way 2mm pitch ideally.

(10).2Way Wire-To-Board connector Set 2mm(.079") pitch | eBay

So it would be possible to take the male end and rig it to the charger cord...then get a separate male end and attach it to an inverter...which is in turn connected to the el wire.

So I would need 3 of the 2-way wire board connectors...one for a charge cord and 2 for the Nike strap set-up.

This should make the ps3 battery easily connectable to a charger AND easily connectable to the strap set-up.
Then again, all of this is just a theory as I don't have knowledge of resistors or diodes for protecting the full circuits. Safe work loads, etc.

 

[DL4567]

Re: Nike Mag V2 mod discussion and builds

I'll have an answer for you in a few hours.

Cool, thanks! If it's good I might follow in your footsteps and get the same batteries.

 

[esquero]

Re: Nike Mag V2 mod discussion and builds

Hi

So I have the nike logos so far and am going to attempt the strap conversion for my mags...eek! Problem is I'm rubbish at electronics. I've watch jedifyfe's making the straps and am stumped. Is tere a way I can just attach an el panel to a power source via a wire and be done? Any help would be mahoosivly appreciated.

 

[Man]

Re: Nike Mag V2 mod discussion and builds

I'm using a slim inverter from coolight.com. I put the pin right where it belongs on the cloneprops buckle. Not sure how to do that with the v2 buckle. Just make sure to use a diode so that the flow can only go one direction when charging.

what diode an pin should i buy and where should i wire it to?

 

[Taff83]

Re: Nike Mag V2 mod discussion and builds

I thought id come back to this point seeing as im a little more awake this morning then I was last night and try to explain as best I can!...

There is a slight flaw with using 1 resistor sharing the "load/current" for the whole circuit. As all the leds are wired complete in parallel if one LED were to fail this would then increase the total current running through every other LED in the circuit, which could then start to take out those LEDs too.

Plus using one resistor you need a relatively large wattage one which can and will generate slightly more heat then splitting them up into 3 smaller "circuits" using 1 resistor per bank of LEDs you can get away with smaller wattage ones. Heat is wasted energy.

So If your using 12 leds off a 3.7v supply the total resistor need for the whole array is 28ohms (calculated) for a current of 20ma per each of the 12 LEDs and with a forward voltage of 2.2V. To be safe split the 12 LEDs into blocks of 4 and use a 10-20ohm per each block of 4.

That way if an led were to fail you would only damage 3 more maximum rather then the whole block of 11/12 LEDs. Its just a bit safer and a safe practice on how to do things.

If running off a 9V supply then you would require around a 100ohm resistor per each bank of 4 to be safe. And again to be safe around 1watt otherwise the resistor can get frigging hot.

But it can also depend on what voltage your running off of course.

Edited..

Here is a good tool to work out resistance of parallel and series LEDS.

LED Resistor Calculator

I was referring to a 9v setup using 1x100ohm resistor, thing is I've used up 3x9v batteries on a setup now the last few days with no resistor and not one led has blown so using 1x100ohm resistor was really a just incase but I honestly don't understand why we need them installed. Surely by now if this was right a led would have blown? As none have yet I honestly don't get why people are using resistors for 9v setups. Maybe I'm just lucky lol?

Below is my 9v test setup.. I'm a big believer of trial and error so best way to test anything is to hook it up and run it to death days on end, still no problems and to clarify this test setup has no resistor installed oh and not a slightest "humm" from the inverter

If anyone is going to use a 9v setup hold your horses and use these.. Best I can find http://bit.ly/Wip2f9 yes 750mah, every little helps!

 

[NikWink]

Re: Nike Mag V2 mod discussion and builds

Officially 5 hours and 40 minutes. After 4.5 hours LEDs looked a lil dim.

 

[Taff83]

Re: Nike Mag V2 mod discussion and builds

Officially 5 hours and 40 minutes

Nice thanks for confirming Nik, so with 750mah were looking at 6hours plus, hopefully!!

 

[cavx]

Re: Nike Mag V2 mod discussion and builds

@ Taff83, No resister at all ? :confused

Are they connected series, parallel or a combination?

I was thinking series wiring all four LEDS of each colour, then parallel each bank, but still think you would need some resistance for a 9V supply.

 

[Taff83]

Re: Nike Mag V2 mod discussion and builds

No resister at all ? :confused

Are they connected series, parallel or a combination?

I was thinking series wiring all four LEDS of each colour, then parallel each bank, but still think you would need some resistance for a 9V supply.

Yep no resistor at all, setup is parallel and no led has blown or dimmed on me, truth is in the eye of the beholder as they say.

I would like to add only reason as I stated a few pages back that I am using 9v setup is cause I want to perfect my 3v setup so I get to use over 1000mah batteries in my wearable pair that I plan to buy ASAP, the pair I have at the moment will run 9v 750mah rechargeable setup for display purposes only.

My 3v setup though needs this method don mentioned, having 1 resistor per set if four leds(per row) I have solved it running off one switch just the red LEDs start to dim so I am just awaiting my boosters to arrive to hopefully give a bit more light to them so everything looks spot on, when its done and tested to death for days and days I will post the wiring diagram and shopping list needed if anyone wants to use this setup. If not least the 9v works for + 5 40mins thanks to Nik for confirming

 

[cavx]

Re: Nike Mag V2 mod discussion and builds

Awesome job :thumbsup

 

[DL4567]

Re: Nike Mag V2 mod discussion and builds

Officially 5 hours and 40 minutes. After 4.5 hours LEDs looked a lil dim.

Awesome, thanks for that! Not too bad.... not too bad, for those rechargeable 9 volts. I wonder how a non-rechargeable regular alkaline would fare by comparison. Supposedly they are 580-600 mah.
But ~5 hours is totally acceptable given the gen Mags are what.. 4 hours?
And the V2s as they come only get about 2.5-3 hours, which really stinks.
I know some guys on here are getting around 10(?) with PS3 batteries and such, but it will be all I can do to hook up the 9v method, given my (lack of) electronics skills.

 

[Taff83]

Re: Nike Mag V2 mod discussion and builds

If anyone missed me posting this earlier here it is again, they are pricey but best I can find http://bit.ly/Wip2f9 in the description it states they take 3-4 hours to charge which is always handy to know

 

[NikWink]

Re: Nike Mag V2 mod discussion and builds

I'd like a little more but ill take it. If I can match the RD I'm happy. I am kinda at a loss though because I don't have an exact way to know when my shoes are fully charged. Just gotta play with it a little and learn how it works.