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I'm lost with CR123 battery — Parallax Forums

I'm lost with CR123 battery

fredobedofredobedo Posts: 4
edited 2007-09-24 17:32 in Robotics
Hello all [noparse]:)[/noparse]

I'm french and i have just buy Pinguin robot [noparse]:)[/noparse])

Just After my purchase i search how to charge battery in the pinguin....arrggghhhhh....i can't..they're not recheargeable lol :/


Then i find where to buy same kind of battery but rechargeable....wooo lot of choice...and lot of them are in 3,6v and OEM battery run at 3V...

My question :can i use 3.6V battery in pinguin robot??Have you some URL for me to guide my choice??

Thank you so much wink.gif

(PS: sorry for my ugly english :/)

Comments

  • fredobedofredobedo Posts: 4
    edited 2007-09-23 06:33
    I answer myself ^^

    I find this very interested item : http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=521

    Just 900Mah ...but in rechargeable format i think it's the max....

    Do you know reachargeable cr123 with more power than 900Mha ?

    Have a good day wink.gif
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2007-09-23 10:20
    The CR123 was originally manufactured for cameras.
    So it might help to drop buy a friendly camera store and ask them about what is available.

    At the very least, they are most likely to have a few immediately available.

    RCA makes a 'rechargible' CR123A. So there is hope - try Google or EBay.

    The 'A' means the 1550ma/hr product.· The original is 900ma.

    Try these guys for the whole deal - batteries, world wide recharge and automobile adapter!

    http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=1641

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    "Everything in the world is purchased by labour; and our passions are the only causes of labor." -- David·Hume (1711-76)········
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan

    Post Edited (Kramer) : 9/23/2007 10:30:19 AM GMT
  • T&E EngineerT&E Engineer Posts: 1,396
    edited 2007-09-23 10:36
    As a sidebar note on the CR123 or any other battery system you use in your projects...

    Take a look at the Parallax RoboGames Medal schematic. The connections to the SX-28 are incorrect which I have stated in the forum multiple times as well as in email on the Parallax site.

    http://www.parallax.com/dl/docs/prod/acc/Robo_B%20Schematic.pdf

    http://www.parallax.com/detail.asp?product_id=752-00003

    However, look at how they use the CR123 (actually 2 of them in series for 6vdc) and their use of LT1121ACS8-5. There are other several low current (battery operation) 5v low dropout regulators like the small LT1121ACS8-5. You may also be able to get some free samples from the manufacturer Linear Technology:

    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1040,C1055,P1368,D2188

    I have ordered these and they work very nice with battery operation.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-09-24 15:46
    Timothy,

    Could you please explain in detail where you are finding issues with the schematic? I checked your link and everything appears to be correct. Take Care.

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    Chris Savage
    Parallax Tech Support
  • T&E EngineerT&E Engineer Posts: 1,396
    edited 2007-09-24 16:37
    See the link on this RoboGames post:

    http://forums.parallax.com/showthread.php?p=656511

    My posting with pics are·6 down showing the problems with the pin connections.

    Look especially at Vdd and Vss pins.
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2007-09-24 17:01
    To anyone with Errata,

    I can understand T&E Engineer's frustration about the correction not getting made, but Parallax does have some one, an editor that will immediately resolve such things if she gets an email directly sent to her. I think it is Lauren Davis, but I'm not 100% sure.

    Email to customer service or support@parallax.com, will get immediate attention.

    Posting on the Forum is a more indirect and less reliable route. Parallax really wants to respond quickly to these items.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    "Everything in the world is purchased by labour; and our passions are the only causes of labor." -- David·Hume (1711-76)········
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • T&E EngineerT&E Engineer Posts: 1,396
    edited 2007-09-24 17:05
    Been there and done that but still not updated.

    From: Gilmore, Timothy
    Sent: Friday, September 07, 2007 12:49 PM
    To: 'support@parallax.com'
    Subject:
    ·
    I wanted to let Parallax know that the schematic for the RoboGames Scrolling LED medal is incorrect for the SX-28 pin connections.
    ·
    http://www.parallax.com/detail.asp?product_id=28099
    ·
    http://www.parallax.com/dl/docs/prod/acc/Robo_B%20Schematic.pdf
    ·
    See attachments.
    ·
    Thanks,
    ·
    Timothy Gilmore
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-09-24 17:29
    Timothy,

    I think the problem is that you are looking at the pin connections for a DIP version of the SX-28, whereas the Robo-Medal uses the SMD version which has a different pin out. I also noticed your corrections refer specifically to the PDB which uses the DIP version. Unless there is something else I am missing or some other detail I have to assume our schematic is, in fact, correct. Please, let me know exactly which pins are in the incorrect locations for clarity.

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    Chris Savage
    Parallax Tech Support
  • T&E EngineerT&E Engineer Posts: 1,396
    edited 2007-09-24 17:32
    My Appologies! You are correct. I never thought about that SMD parts may have different pin outs.

    Thanks for catching this Chris!
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