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Next: Storing Li/Ion batteries
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External
Since: Jun 04, 2006
Posts: 17
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(Msg. 1) Posted: Wed Feb 14, 2007 10:35 am
Post subject: ipower 9v observations
Archived from groups: rec>arts>movies>production>sound (more info?)
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Hi all,
I'm in the first couple of weeks of testing my 14 ipower 9 volt
rechargable batteries. A few observations that some may find
interesting:
- recharge time between 15-30min depending on duration battery has
been on
- twice I have get no reading at all on two different batteries (I've
numbered them all) - I haven't been able to repeat this but I suspect
it was just run down until dead
- I find they give me about 5 hours for both R1a Lectro IFB Receivers
and 205c Lectro Transmitters.
I get my boom op to test voltage levels at start of each day and at
lunch to lesson any surprises!
cheers,
Ande
Ande Schurr
Auckland NZ
www.fieldsounds.co.nz |
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External
Since: May 16, 2006
Posts: 524
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(Msg. 2) Posted: Wed Feb 14, 2007 1:03 pm
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On 14 Feb 2007 10:35:27 -0800, "Ande Schurr" <andeschurr RemoveThis @gmail.com>
wrote:
>Hi all,
>
>I'm in the first couple of weeks of testing my 14 ipower 9 volt
>rechargable batteries. A few observations that some may find
>interesting:
>
>- recharge time between 15-30min depending on duration battery has
>been on
>
>- twice I have get no reading at all on two different batteries (I've
>numbered them all) - I haven't been able to repeat this but I suspect
>it was just run down until dead
>
>- I find they give me about 5 hours for both R1a Lectro IFB Receivers
>and 205c Lectro Transmitters.
>
>I get my boom op to test voltage levels at start of each day and at
>lunch to lesson any surprises!
>
>cheers,
>Ande
>
>Ande Schurr
>Auckland NZ
>www.fieldsounds.co.nz |
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External
Since: May 16, 2006
Posts: 524
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(Msg. 3) Posted: Wed Feb 14, 2007 1:14 pm
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Hi Ande,
If the battery is fully discharged (dead) the internal protection
circuitry disconnects the terminals from the battery cells and you
will indeed get no reading. If the battery didn't disconnect itself,
any further discharge would destroy the cells, hence the protection.
Thanks for the input.
LarryF
Lectro
On 14 Feb 2007 10:35:27 -0800, "Ande Schurr" <andeschurr RemoveThis @gmail.com>
wrote:
>Hi all,
>
>I'm in the first couple of weeks of testing my 14 ipower 9 volt
>rechargable batteries. A few observations that some may find
>interesting:
>
>- recharge time between 15-30min depending on duration battery has
>been on
>
>- twice I have get no reading at all on two different batteries (I've
>numbered them all) - I haven't been able to repeat this but I suspect
>it was just run down until dead
>
>- I find they give me about 5 hours for both R1a Lectro IFB Receivers
>and 205c Lectro Transmitters.
>
>I get my boom op to test voltage levels at start of each day and at
>lunch to lesson any surprises!
>
>cheers,
>Ande
>
>Ande Schurr
>Auckland NZ
>www.fieldsounds.co.nz >> Stay informed about: ipower 9v observations |
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External
Since: Dec 08, 2004
Posts: 96
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(Msg. 4) Posted: Thu Feb 15, 2007 6:28 am
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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I'm getting all day with my R1's (same for Comteks). I try to turn
them off at lunch.
Stacy Brownrigg, CAS
On Feb 14, 12:35 pm, "Ande Schurr" <andesch... RemoveThis @gmail.com> wrote:
> Hi all,
>
>
> - I find they give me about 5 hours for both R1a Lectro IFB Receivers
> and 205c Lectro Transmitters.
>
>
> Ande Schurr
> Auckland NZwww.fieldsounds.co.nz >> Stay informed about: ipower 9v observations |
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External
Since: Oct 25, 2006
Posts: 31
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(Msg. 5) Posted: Sat Feb 17, 2007 3:47 am
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Hey Larry - any ideas how to reconnect the battery cells to the
terminals.
I have had two (out of 15) iPower 9v batts that have failed completely
after only a few weeks. I could get power neither into or out of
them.
Any ideas? Might my cells have permanently disconnected?
Kindest,
SB >> Stay informed about: ipower 9v observations |
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External
Since: Jul 12, 2006
Posts: 23
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(Msg. 6) Posted: Sat Feb 17, 2007 9:47 am
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Feb 17, 12:10 pm, Larry Fisher <lectroson....DeleteThis@gmail.com> wrote:
> Hi Simon,
> I sure don't. That's not a failure I've run into. If the internal
> cells get really low on voltage they are permanently damaged. I don't
> know if the internal circuit disconnects them then or not. If it did,
> there would be no way to recover the battery and it wouldn't be
> recoverable anyway. Maybe Richard at iPower has some input. He keeps
> an eye on the group.
> Best Regards,
> Larry Fisher
> Lectrosonics
>
> On 17 Feb 2007 03:47:03 -0800, SSimonbis....DeleteThis@googlemail.com wrote:
>
>
>
> >Hey Larry - any ideas how to reconnect the battery cells to the
> >terminals.
>
> >I have had two (out of 15) iPower 9v batts that have failed completely
> >after only a few weeks. I could get power neither into or out of
> >them.
>
> >Any ideas? Might my cells have permanently disconnected?
>
> >Kindest,
>
> >SB- Hide quoted text -
>
> - Show quoted text -
Hi Simon,
No power in or out, could be almost any of the components, or the
cells.
When 2 fail the same way at the same time it usually spells external
trama.
If you can, please make the dealer aware of your circumstance when you
return them,
And we will find out what happened.
Thanks,
Richard >> Stay informed about: ipower 9v observations |
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External
Since: Dec 20, 2006
Posts: 65
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(Msg. 7) Posted: Sat Feb 17, 2007 10:03 am
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Feb 17, 5:47 am, SSimonbis....RemoveThis@googlemail.com wrote:
> Hey Larry - any ideas how to reconnect the battery cells to the
> terminals.
>
> I have had two (out of 15) iPower 9v batts that have failed completely
> after only a few weeks. I could get power neither into or out of
> them.
>
> Any ideas? Might my cells have permanently disconnected?
>
> Kindest,
>
> SB
I have 1 cell out of 8 with the same problem after 5 cycles, got them
at trew audio...
~
Sergio >> Stay informed about: ipower 9v observations |
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External
Since: May 16, 2006
Posts: 524
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(Msg. 8) Posted: Sat Feb 17, 2007 10:10 am
Post subject: Re: ipower 9v observations [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Hi Simon,
I sure don't. That's not a failure I've run into. If the internal
cells get really low on voltage they are permanently damaged. I don't
know if the internal circuit disconnects them then or not. If it did,
there would be no way to recover the battery and it wouldn't be
recoverable anyway. Maybe Richard at iPower has some input. He keeps
an eye on the group.
Best Regards,
Larry Fisher
Lectrosonics
On 17 Feb 2007 03:47:03 -0800, SSimonbishop DeleteThis @googlemail.com wrote:
>Hey Larry - any ideas how to reconnect the battery cells to the
>terminals.
>
>I have had two (out of 15) iPower 9v batts that have failed completely
>after only a few weeks. I could get power neither into or out of
>them.
>
>Any ideas? Might my cells have permanently disconnected?
>
>Kindest,
>
>SB >> Stay informed about: ipower 9v observations |
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