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airberger Posted - 07/29/2004 : 2:49:38 PM
I just found an online source for what I believe to be the Neuros HD battery. The cylindrical 18650 Li-ion battery is available in both 2000mA and 2400mA versions at $24 for 4 and $40 for 4 respectively.

http://www.batteryspace.com

FWIW. Opening your Neuros voids the warranty and all that.
20   L A T E S T    R E P L I E S    (Newest First)
Derek Posted - 06/11/2005 : 11:18:03 PM
when you guys talk about the circuit board on the battery...you are refering to the little bumpy strip that runs parallel with the battery and the leads are soldered to right?

if so, if i buy one of those batterys from battery source... what do i have to take off of the old battery?...just the circuit board?...the circuit board and the metal strip going to each end of the battery?...

also what do i solder the wires coming out of the new battery to?...the other end of the circuit board?

also, the battery on the website says 3.6V instead of 3.7V, does this matter?

any help is appreciated,
Derek

The dissapointment of poor quality lingers long after the thrill of a cheap price...
Sottilde Posted - 04/17/2005 : 6:25:35 PM
Reading your post, did you say you got 8.5 hours with MyFi? That's excellent. Normal batteries get ~4.

I'm really interested in replacing my battery. Maybe I'll even send it in with a battery and have the NA team do it, as to not ruin my warranty. The battery life on this thing is sub-par, and if I could get around 16 hours out of it, I'd be a very, very happy camper.

------Order #9082 :D
pritterjr(at)socal.rr.com Posted - 03/03/2005 : 5:50:37 PM
A little more on my exprience with the replacement battery. The first time I tried to use the new 2400 mah battery after moving the little circuit board over from the orignal battery it did not work. Putting it back on the orignal, the circuit worked fine??? Putting it back on the new battery, the silly thing worked normally. Bad solder joint I figured. It charges OK, but I still only get about 8 1/2 hours with MiFi of useage. Haven't run any other test on duration. The battery still reads 4.26 at full charge. (This is better than the 20 minutes of useage I was getting even when the voltage read 4.26 after a nights charge on the old one).
This unit is a little less than 1 year old, but did want to part with it long enough to have the factory replace the battery. Next time I will, if unable to purchase a battery directly from them.
By the way, these batteries are rated for 300 charge/discharge cyles. Doesn't take long to reach that.
Phil
unknown_lamer Posted - 03/03/2005 : 4:08:04 PM
I attached the circuit but it refused to charge the 2400mAh battery.

I then lit it on fire ... (earlier today, I first tried to get it all to work a few days ago). So it's a moot point now, unless I can find a replacement PCB (I'm ordering a new 2000mAh battery from NA with the PCB included and I'm not going to take that one apart because it was a PITA).
Matthias Halibrand Posted - 03/03/2005 : 2:18:30 PM
As in the post exactly above yours and several different threads out there stated, there is a small electronic circuit directly attached to the original battery. If you attach this to the new one, it should work!

Matthias

Liebe und Frieden ...
unknown_lamer Posted - 03/03/2005 : 2:17:39 PM
...And I just lit the voltage regular (or whatever that circuit board is) on fire.

Uh, accidentally attaching it to the battery backwards was mistake. So, does anyone know what the part number is? :-)
unknown_lamer Posted - 03/03/2005 : 2:09:40 PM
As an experiment I got the 2400mAh version. I was able to cut the two solder points on each of the sides of the Neuros battery to get it off and put it onto the new battery. Problem is that it won't charge the new battery. I don't have any electrical testing equipment so I don't know if any current is flowing across it or not.

It still works with the real Neuros battery. Any ideas as to why it wouldn't work with the new battery? I plugged it in and left it overnight headless and then tried again the next night with the head on and it still has no juice in it.

Worst case is that I'm out $10 so it isn't a big deal (I could probably find something else lying around here to use it ... hrm) but I'd like to get the 2400mAh battery working (my Neuros battery is almost two years old now and is worn out from recording lectures and being drained entirely every day). Has anyone purchased the 2000mAh model and had that work?
pritterjr(at)socal.rr.com Posted - 02/23/2005 : 11:49:07 PM
Hi everyone, In changing the battery in the hard drive unit, one thing to watch out for is the Neuros battery has a small circuit borad in series with the negative lead. (for charging limit or temp?)
The 18650 battery does not have it. It is possible to remove the board and install on the new battery, but it not for the faint of heart. Best to let Neuros change it for about the same money or get the battery from them. Hope this keeps someone from getting into trouble.
Phil
Matthias Halibrand Posted - 02/11/2005 : 10:24:32 AM
You shouldn't add it in series, since this will only result in more heat, if you are unlucky it will damage your precious. But you definetely can add it parallel to double (triple, whatever) the capacity. But it's possible that the charging wouldn't work anymore. I would have to look at the specs for these to say for certain, but it could be possible.

Matthias

P.S.: If you are willing to mod your Neuros for longer battery-life and you don't care about a bigger device, you can detach the battery inside, make a hole into your Neuros and use those battery packs you can find within the RC community. There are some which are usuable with very low power-consumptions, and ones for high power consumptions. Use the first ones! Of course you need to make a few mods to the cables!

Liebe und Frieden ...
Don Posted - 02/11/2005 : 06:17:28 AM
quote:
Originally posted by gildea

Can you add more than one battery (in series?) to the Neuros?



Why? If one is capable of running the Neuros then unless it has some fancy regulation to make good use of the extra voltage, the energy from the second battery will just be dissapated as heat.


-Don
Yono Posted - 02/09/2005 : 3:15:22 PM
quote:
Originally posted by gildea

quote:
Originally posted by airberger

I just found an online source for what I believe to be the Neuros HD battery. The cylindrical 18650 Li-ion battery is available in both 2000mA and 2400mA versions at $24 for 4 and $40 for 4 respectively.

http://www.batteryspace.com

FWIW. Opening your Neuros voids the warranty and all that.



Can you add more than one battery (in series?) to the Neuros?



You might be able to, but it probably wouldn't fit into the backpack.

-- 'Microsoft Works is an Oxymoron'
gildea Posted - 02/09/2005 : 12:11:12 PM
quote:
Originally posted by airberger

I just found an online source for what I believe to be the Neuros HD battery. The cylindrical 18650 Li-ion battery is available in both 2000mA and 2400mA versions at $24 for 4 and $40 for 4 respectively.

http://www.batteryspace.com

FWIW. Opening your Neuros voids the warranty and all that.



Can you add more than one battery (in series?) to the Neuros?
Matthias Halibrand Posted - 01/28/2005 : 4:50:04 PM
Speaking of changing the battery-packs. You shouldn't solder the wires to the battery. It is not good for the batterys lifespan to heat it up by soldering something to it. Professionnally it is pointed, at least that's what we say in German.
It's like a needle which is very very hot, and which comes with a high pressure and for only a piece of a second and points the contacts together. This way the cells are not harmed due to to high temperature.
Just a tip I got from an expert I used to work with. The best way to do is press the contacts together and then fixate them with a little hotglue. This will sustain vibrations and will keep the contacts together without damaging the batterie-cells!

Matthias

Liebe und Frieden ...
butterbean Posted - 01/28/2005 : 12:44:14 PM
2000mAh, 3.7V, Li-ion

At least, that's what I "suspect" the battery would say on it...
Matthias Halibrand Posted - 01/28/2005 : 10:49:51 AM
Don't know by heart, but you will be good with the bigger ones even if they usually use the smaller ones.

Matthias

Liebe und Frieden ...
SinisterTengu Posted - 01/28/2005 : 01:41:41 AM
Which version normally comes in a Neuros, the 2000mA or the 2400mA?
MadDogPlatinum Posted - 01/20/2005 : 11:08:36 AM
quote:
Any many electronics geeks who are replacing their own batteries know where to dispose of them, too.


Not too tough...IIRC, your average Wal-Mart photocenter has a "Recycle Batteries Here" cardboard box that you can toss them into.

Mike H.
gour Posted - 12/15/2004 : 11:05:52 AM
quote:
Originally posted by airberger

I just found an online source for what I believe to be the Neuros HD battery. The cylindrical 18650 Li-ion battery is available in both 2000mA and 2400mA versions at $24 for 4 and $40 for 4 respectively.

http://www.batteryspace.com


Has anyone replaced their battery with those sold at the above source

I'm from Croatia and user-replaceability is very important item on my Neuros-buying check list

Besides that, the 18650 batteries are sold in 4-pack and that would be a perfect fit for my needs since my old Psion Netbook battery pack uses 3 of them

Sincerely,
Gour
webkid Posted - 07/31/2004 : 12:09:33 AM
Any many electronics geeks who are replacing their own batteries know where to dispose of them, too.

:: Old Firmware: http://tinyurl.com/4x57x :: NDBM: http://neurosdbm.sf.net/ ::
Chameleon Posted - 07/30/2004 : 6:57:55 PM
Some of us would rather not be without their Neuros for that long.
Also, my warranty has already expired, so I have nothing to lose.

-- 'I switched to Vorbis and saved a bunch on my hard-disk space!'

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