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Hacking Li-ion Battery Battery's for cameras that Radio Shack Stor — Parallax Forums

Hacking Li-ion Battery Battery's for cameras that Radio Shack Stor

sam_sam_samsam_sam_sam Posts: 2,286
edited 2009-02-20 05:50 in General Discussion
·They are selling them out of there stores they will not sell these any more this is on·some battery only
the line that is bellow is not one of them but it look just like it

http://www.radioshack.com/product/index.jsp?productId=2815061


They are very easy to open the case of the battery the board that comes with battery will control the battery voltage from 1.8 to 4.2 volts

They also have 7.2 volt batterys also these work very well with a Basic Stamp I try this over the weekend

the one thing it dose not·control is the current to the battery you have to control this part of it

Please Be careful Not to short these batteys even when they are low on charge they will get vey HOT very fast
Also if you try to chrage them to fast they·will get warm very fast so Please be careful with this part

Note that you CAN NOT hook two 3.7 volt battey ·to get 7.2 volt and be able to charge them this will NOT WORK I try this

I just thought·I would share this with you· this only an·idea.gif


There is a battery shop near ·where I live where
I have bought some Li-ion Battery·for lap computers·a while back·
I did not have· the voltage control board to be able to use them now that I bought these battery that come with··voltage control board· now I can use them

Li-ion Battery·..............>>>>>>>>>>>

This Battery shop·will weld the straps·from cell to cell for me with the understanding that if any thing gose wrong it is my problem· I have been buying·battery from them for·many years··

There some setup that they will not do for me·······

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··Thanks for any·idea.gif·that you may have and all of your time finding them

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Sam

Post Edited (sam_sam_sam) : 2/17/2009 2:53:31 AM GMT

Comments

  • icepuckicepuck Posts: 466
    edited 2009-02-18 01:39
    Heres some links that may be of interest

    http://www.slkelectronics.com/DeWalt/index.htm
    the above link is a good one on dewalt lithium cells..

    http://www.rcgroups.com/forums/showthread.php?t=587606
    http://www.batteryspace.com/
    http://www.powerstream.com/LLLF.htm
    http://store.peakbattery.com/index.html
    -dan
  • Mike GreenMike Green Posts: 23,101
    edited 2009-02-18 02:19
    Lithium rechargable cells are very dangerous to work with. There are some impressive videos on the web showing notebook computers exploding and bursting into intense flame. Lest you think these are special setups, read some of what's available discussing this and the danger posed by rechargable lithium batteries in checked luggage and carry-on luggage on airplanes. It's important to have proper short circuit and charging protection specific for the particular battery involved. If you're a little "free" with your designs or can be a little careless, like accidently dropping a conductive tool into your live circuit, stay away from rechargable lithium cells, use NiMH and make sure there's a fuse in the lead from the battery.
  • Carl HayesCarl Hayes Posts: 841
    edited 2009-02-18 16:26
    Mike is right on, as he usually is. Hacking Li-I cells is a profoundly unwise idea.

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    · -- Carl, nn5i@arrl.net
  • Craig EidCraig Eid Posts: 106
    edited 2009-02-19 02:10
    Most reputable online resellers of Li-ion batteries have warnings regarding the appropriate use of the battery and harging circuitry that is necessary. I agree with the suggestion to avoid hacking an Li-ion battery.

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    Craig Eid

    www.TriadRD.com
  • sam_sam_samsam_sam_sam Posts: 2,286
    edited 2009-02-20 05:50
    I am using these board with these cells

    here is a web site where you can buy them

    http://www.all-battery.com/protectivepcbsforli-ionandli-polymerbatterypacks.aspx

    I research this for a while

    And I do take your warning about these cells to heart

    Mike Green

    Lithium rechargable cells are very dangerous to work with. There are some impressive videos on the web showing notebook computers exploding and bursting into intense flame. Lest you think these are special setups, read some of what's available discussing this and the danger posed by rechargable lithium batteries in checked luggage and carry-on luggage on airplanes. It's important to have proper short circuit and charging protection specific for the particular battery involved. If you're a little "free" with your designs or can be a little careless, like accidently dropping a conductive tool into your live circuit, stay away from rechargable lithium cells, use NiMH and make sure there's a fuse in the lead from the battery.

    Craig Eid

    Most reputable online resellers of Li-ion batteries have warnings regarding the appropriate use of the battery and harging circuitry that is necessary

    I will show some photo of what I have been doing over the weeken


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    ··Thanks for any·idea.gif·that you may have and all of your time finding them

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    Sam

    Post Edited (sam_sam_sam) : 2/20/2009 5:58:35 AM GMT
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