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T O P I C    R E V I E W
Schwilly Posted - 05/26/2004 : 03:19:13 AM
Want a longer lasting Neuros? This is a "how to" I quickly wrote up for using a portable external battery. As of now, this will NOT increase run time with a full battery because, unfortunately, with the current firmware, the backlight stays on the whole goddamned time as long as the DC input is being used. However, if you internal battery IS dead, one should be able to plug this in and give it some more life. With that said...

The Neuros HD DC input is rated between 9-16V with .8A draw. Tip is positive. All these parts are found at Ratshack:

RC Pack 9.6V 1600mAh Battery Pack
RC Repair kit (red and black wire connector)
Adaptaplug Socket
Adaptaplug Model "H" (3.4mm OD, 1.3mm ID)

Optional:
Adaptaplug 6' extension cord
RC 9.6V NiHM/NiCD charger

[1] connect the Adaptaplug Model "H" to the Adaptaplug Socket, making sure that tip gos to positive.
[2] crimp the bare wires of the Adaptaplug Socket into the Red Connectors of the RC Repair Kit adapter. The wire with writing on the Adaptaplug Socket is Positive, and the red wire from the Repair Kit adapter is also positive. Crimp accordingly
[3] Connect the Repair Kit's plastic end into the fully charged RC Pack 9.6V 1600mAh Battery Pack's plastic end. It only fits one way, so don't force it..
[4] Plug the free end into the Neuros. On the Neuros you can observe the battery being charged as well as the voltage increasing (press the down button and toggle the "hold" switch)

EDIT: This has left bare wires exposed and could be potentially dangerous, wrap any bare wires with electrical tape to ensure that the wires do not touch each other or other metal.

Optional:
[5] Disconnect the Adaptaplug Model "H" from the Adaptaplug Socket. Insert in the Adaptaplu Extension Cord making sure the + & tip line up on the Adaptaplug Model "H" side, and that the tip and arrow match up on the Adaptaplug Socket side. The cord with the white strip on the Extension Cord is positive.
[6] Recharge RC Pack by disconnecting and plugging into recharder.

It's not gonna blow up if you switch + & -. The neuros has a protective diode inside.

All the parts cost between $45 and $50, including RC pack and charger.

Theoretically this should give the Neuros 2 extra hours of battery life, but I am assuming a bit less. I'll run some tests and give exact numbers.

Below are some pictures. Here we have the Neuros up top, the RC pack to the left, the Adaptaplug Model "H" middle-left, the Socket (white) crimped onto the red connectors of the Repair Kit adapter in the middle, and finally the extension cord on the far right.

http://img5.photobucket.com/albums/v15/Schwilly/neuros16.jpg
http://img5.photobucket.com/albums/v15/Schwilly/neuros14.jpg
http://img5.photobucket.com/albums/v15/Schwilly/neuros15.jpg

someone turn IMG code On in this forum :-P

stealth or die
20   L A T E S T    R E P L I E S    (Newest First)
Tecchie Posted - 03/22/2005 : 3:47:41 PM
LOL Thank you! and thank you again!

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
Chameleon Posted - 03/22/2005 : 3:04:45 PM
quote:
Originally posted by Tecchie

Well, look at it this way, the CAR charger adaptor is taking in at least 15+ amps.. 15 amps at 12 volts is like about 180 watts.. at less than an amp, the neuros is only using about 10 watts or so..

and I did have it hooked into a 30 amp circuit in my ex's van (power port) and it never got hot, so I think that the internal regulator is fine as long as you supply a minimum of 800Miliamps (0.8 amps) or more, and between 9 and 14 volts.. no more no less voltage.

I mean c'mon, if it weren't designed to handle that power, then there would be a regulator in the car charger adaptor, open it up and look at it, there is just a current resistor in there to keep from burning out that bright ass LED that's in the adaptor.. lol

-Tec

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...

Right on; great post!

I like your sig.

-- 'I switched to Vorbis and saved a bunch on my hard-disk space!'
Tecchie Posted - 03/22/2005 : 1:06:33 PM
Well, look at it this way, the CAR charger adaptor is taking in at least 15+ amps.. 15 amps at 12 volts is like about 180 watts.. at less than an amp, the neuros is only using about 10 watts or so..

and I did have it hooked into a 30 amp circuit in my ex's van (power port) and it never got hot, so I think that the internal regulator is fine as long as you supply a minimum of 800Miliamps (0.8 amps) or more, and between 9 and 14 volts.. no more no less voltage.

I mean c'mon, if it weren't designed to handle that power, then there would be a regulator in the car charger adaptor, open it up and look at it, there is just a current resistor in there to keep from burning out that bright ass LED that's in the adaptor.. lol

-Tec

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
esquire Posted - 03/22/2005 : 12:56:55 PM
i upgraded to garbage, and get 8hrs now of record time
JeffyPop Posted - 03/22/2005 : 12:56:31 PM
Mad Dog, I believe thermistors decrease R with increased heat (inversely proportional based on 1/e). If this is true, and increased current leads to increased heat, then wouldn't that lower R?
JeffyPop Posted - 03/22/2005 : 12:49:10 PM
Techie, the current is what kills you (not the voltage). Of course voltage is important, since the device has regulators spec'ed for certain input ranges. Current, however, is more dangerous.

But if you put in current safegaurds (like Mad Dog's suggestion), then that will protect you against damage to your Neuros. From Schwilly's original post, the current draw is 0.8A.


Tecchie Posted - 03/06/2005 : 12:11:57 PM
Let me say somthing to this effect as far as batteries go..

Use whatever batteries you like, heck you can use a car battery if you feel like luggin that heavy bastard around..

As long as you don't exceed the VOLTAGE input of the device, you'll be fine. As an example, a car puts out a few hundred amps while running (a luxury car does anyways) and the car power adaptor does not have a regulator in it. that is built-in to the battery pack and the hard drive pack.

As long as you keep it between what 9v and 14v you should be fine, and you WANT more amp hours, that equals longer run times, so if you get batteries like RC car packs, that are at 9.6v and 12v, etc. and you want LONG runtime, you need to do it like this.

Say you have TWO battery packs (I am not gonna use the technical tersm for I have forgotten which goes to which series/paralell)

However, for the longer runtime, take two (2) 9.6v battery packs say that are 1,300mAh.. Put them together so the positive ( + ) wires are touching eachother, and the negative ( - ) wires are touching together, and you get the same 9.6v but with 2,600mAh instead of 1,300..

Did you catch that?

If you want to increase voltage but keep the same mAh rating of 1,300, you put the positive from battery 1, to the negative on battery two, then you use the left over positive and negative and connect those to your device..

If you are going to be hooking the power source to the inside of the unit (for instande the HD backpack) make sure the voltage to that doesn't exceed 4 or 5 volts.. as the battery is rated at 3.7, it puts out a tad more power than that, so I Would think it would be safe to assume hooking the power source internally would be save at anything between 2.0 and 5 volts..

Remember, so this doesn't get confusing;

Positive to positive then hooking it up to the device gives you longer runtime..

Positive to negative and the remaining leads to the device will increase voltage, but keep same amperage rating, best to keep the same voltage and amperage batteries together.. I don't know how to calculate the difference or hazards of using two differenyt battery powers together..

If I had the time, money and patience I'd post a link toa pic that would illustrate this.

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
booman Posted - 03/06/2005 : 11:58:23 AM
quote:
Originally posted by MadDogPlatinum
It doesn't matter what the mAh rating is- more mAh just equates to longer run time.

I would also STRONGLY suggest that anyone building something like this stick in some kind of current limiter- a regular fuse will work just fine. The difference between a wall wart and a bank of batteries is that a wall wart has some inherent current limiting, while a bank of batteries will happily supply a REALLY large current, right up until the load (YOUR Neuros) or the batteries fry/catch fire/melt/explode. There are resettable "fuses" out there, basically just thermistors that rapidly increase in resistance above a certain current, causing them to heat up and increase resistance, etc., thereby limiting the current.

Mike H.



Mike,
Would you be so kind as to post a link to a specific product that is an example of the current limiter that you speak of? I am interested in implementing this into my setup, but I have never been good at jury-rigging things on my own- I need a "how to for dummies" type thing. I am currently using Schwilly's Radio Shack setup with the RC pack, etc.

Thanks,
Nate
Tecchie Posted - 03/06/2005 : 10:48:21 AM
Sent you an email.. expect to get a mail from Tecchie@ g mail....

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
esquire Posted - 03/06/2005 : 10:34:43 AM
thanks i can't figure out how to compile it?

can u email me the file esquire360@g mail.com
Tecchie Posted - 03/06/2005 : 10:14:35 AM
Also, on another note, you should download and install a copy of GarBage branch firmware, infactI am gonna check for an update.. It will give you a numerical readout of the voltage from the battery.. so you know when you have a full charge..


-Tecchie

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
Tecchie Posted - 03/06/2005 : 09:58:27 AM
yeah,I have the 128MB version,let me pop my backpack on and give it a full charge.. remember the batteries in the regular backpack are just NiMh.. they suck, so they will develop a memory if you keep charging them when they don't need it.

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
esquire Posted - 03/06/2005 : 09:48:04 AM
i record at 128 or 64 and it still drops off at 2.5 hrs, any 1 got a backpack they could test?
Tecchie Posted - 03/06/2005 : 09:42:02 AM
The batteries in the head unit (the 256MB version) are two AA's and they are 1,300mAh... (there are two, but they are in sequence or whatever it's called so amperage stays the same, just voltage increases) so.. 1,300 x 3v = 3.9.. you should be getting close to 4 hours of playback at least.. or so.. maybe my mathis off, but the HD backback will give you more runtime as it has a 4v (technically 3.7v) 2,000mAh You're supposed to get roughly 10 hours of playback, but that is under ideal conditions, but for best results and to maintain playback quality, keep your MP3's to 128K or less encodings..

That will give you max bettery life.. the higher the bitrate the more processing power it takes to play the sounds, and thus shorter battery life.. :P

-Tecchie

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
esquire Posted - 03/06/2005 : 09:30:15 AM
is there a difference in battery life with the back pack, verses the 256mb recorder? i'm only getting 2.5 hrs on it
Tecchie Posted - 01/31/2005 : 12:59:07 AM
Well, I'd have to say (about my previous post) that all of us should do some battery research, much like I did, to find a bettery that can fit inside the neuros, without having to have an external battery hookup, or (since there are firmware releases in the open source community that will allow the light to br turned off while on external power) maybe a sleeve type device that can hold like a long flat Lithium Ion (LiOn) battery pack that can put out say, 6,000mAh, or even 9,000mAh...But, keep the voltage at a steady 4 volts (assuming you can jump it into the circuit board in the HD pack directly) or redesign the backpack totally to fit a longer, larger battery.. IMHO long battery life as well as great features is just as important to me..

Just my input once again. Feel free to contact me..

tecchie@-REMOVE-THIS-gmail.com

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
MadDogPlatinum Posted - 01/25/2005 : 3:54:20 PM
quote:
Originally posted by pedersdd(at)alfred

Does it matter what mA rating the extra battery has as long as its at least 1600mA? Or can you supply too much power?....it would be a 9.6v battery for sure anyway right? I have not had a chance to check what it says on the neuros charger so im not sure exactly what it would take to charge it. I know some things about elect, but not much.

also, when you build schwilly's version of the battery do you attach the adaptaplug socket to only the positive red wire on the rc repair kit or both the wires...pretty sure just pos...but not sure



It doesn't matter what the mAh rating is- more mAh just equates to longer run time.

I would also STRONGLY suggest that anyone building something like this stick in some kind of current limiter- a regular fuse will work just fine. The difference between a wall wart and a bank of batteries is that a wall wart has some inherent current limiting, while a bank of batteries will happily supply a REALLY large current, right up until the load (YOUR Neuros) or the batteries fry/catch fire/melt/explode. There are resettable "fuses" out there, basically just thermistors that rapidly increase in resistance above a certain current, causing them to heat up and increase resistance, etc., thereby limiting the current.

Mike H.
Derek Posted - 12/22/2004 : 09:15:49 AM
Does it matter what mA rating the extra battery has as long as its at least 1600mA? Or can you supply too much power?....it would be a 9.6v battery for sure anyway right? I have not had a chance to check what it says on the neuros charger so im not sure exactly what it would take to charge it. I know some things about elect, but not much.

also, when you build schwilly's version of the battery do you attach the adaptaplug socket to only the positive red wire on the rc repair kit or both the wires...pretty sure just pos...but not sure
Tecchie Posted - 12/05/2004 : 12:40:46 AM


Hey guys, I think I've found a battery replacement for the HD Backpacks, although it might not give you much more record time or running time, it has a higher mAh rating (in fact there is two other ones) and they are the same physical size as the stock 2,000mAh one that's in there..

It's a Samsung 3.7v 2,000mAh battery, and I found a 2200 and a 2400 batteries...

Here is the link.. :P Enjoy boys!.. As I am still searching to see if there are same size batteries that hold a higher mAh rating.. :P ANY HELP WOULD BE GREATLY APPRECIATED!!

Here is your link Ladies And Gentlemen!
http://www.samsungsdi.co.kr/contents/en/product/battery/type01_ICR18650_20.html

And if that doesn't work, then pop in a search for exactly this into google and it would be your first item on the page.. :

samsung sdi 3.7v 2,000mah

Thanks guys! Got me on a kick.. Says it's supposed to last up to Ten hours, but I average about 4 - 5 hours on a full charge.. I havn't taken it to it's limit except when using the onboard FM Transmitter, MAN that munches up the power.. I think I got an hour of battery life while using that!.. HAHAhahaha

-Brian

Sleep... One of the Greatest Factors in Slowing the Development of our Society... If only I had more Caffene...
gws1683 Posted - 11/17/2004 : 4:16:00 PM
I just got a good deal on some batteries from batterySpace.com:

Three 1800Mah Nimh 9.6V RC batteries for $21.99

This compares to one 1600Mah Radio Shack Nimh battery for $19.99.

They also sell a cumbersome-looking pair of 3300Mah packs made of 8 Sc cells each for $49.99.

Also bought a $6 charger and shipping was 6.36. Products shipped next day. Very pleased. This should be enough power now....thanks Schwilly!

http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID;=1144

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