You might try a place that sells rc planes. DJ Hobby, Hobbytown, call ahead.

Sam


On 9/10/2013 1:23 PM, Peter Hackett wrote:
I'm off to Black Rock on Thursday. Not sure I'll be able to replace it by then.
(I'm assuming it would be hard to find the right battery locally)

My first thought it to go to Radio Shack and get a 3 x AA or 3 x AAA battery holder ( ~ 4.5V) clip the connect off the LiPo (leaving ~ 1 inch or so of wire) and solder the
(LiPo) connecter leads to the AA/AAA battery holder leads.

Anyone want to chime in on whether AAA's will be big enough?

Also, I guess I should be concerned about battery internal resistance. Will 3 standard alkaline batteries in series be able to provide enough current to light the e-matches?

RE over-charge:

Can that happen using the TeleMetrum to do the charging?



On Tue, Sep 10, 2013 at 1:07 PM, Joe Zawodny <jmzawo...@gmail.com <mailto:jmzawo...@gmail.com>> wrote:

    A fully charged LiPo cell is 4.2V.  It would seem yours is
    overcharged.  It may still work for a while, but the capacity and
    lifetime have been compromised.  You should probably replace it.

    Joe

    Sent from my iPad

    On Sep 10, 2013, at 3:46 PM, Peter Hackett
    <peter.hack...@cal.berkeley.edu
    <mailto:peter.hack...@cal.berkeley.edu>> wrote:

    > I just charged my TeleMetrum battery and I noticed that the
    > battery (silver wrapper) is bulging.
    >
    > How bad is this?
    >
    > It seems to be "working" and the TeleMetrum can talk to my
    > laptop. The software reports the battery voltage at 4.46 volts.
    >
    > Is this a "normal" voltage for after a charge?
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