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Powerex 9.6v 230mAh batteries?

 
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tourtelot

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Since: Feb 13, 2008
Posts: 17



(Msg. 1) Posted: Tue Nov 25, 2008 4:17 pm
Post subject: Powerex 9.6v 230mAh batteries?
Archived from groups: rec>arts>movies>production>sound (more info?)

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John Frink

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Since: Nov 12, 2008
Posts: 3



(Msg. 2) Posted: Tue Nov 25, 2008 5:58 pm
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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On Nov 25, 2:17 pm, wrote:
> Anyone tried them?
>
> D.

I've used Powerex 9.6v 230mAH batts with ATW T101/T102/T73/T76 txs and
with Lectro UM400/400a and they worked well. They're especially good
with gear that isn't happy with the 8.4v of most NiMHs. I recently
switched to iPower LiPo's which I like even better.

John Frink

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tourtelot

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Since: Feb 13, 2008
Posts: 17



(Msg. 3) Posted: Tue Nov 25, 2008 8:45 pm
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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On Nov 25, 1:58 pm, John Frink wrote:
> On Nov 25, 2:17 pm, wrote:
>
> > Anyone tried them?
>
> > D.
>
> I've used Powerex 9.6v 230mAH batts with ATW T101/T102/T73/T76 txs and
> with Lectro UM400/400a and they worked well. They're especially good
> with gear that isn't happy with the 8.4v of most NiMHs. I recently
> switched to iPower LiPo's which I like even better.
>
> John Frink

I guess that was actually my (unasked) question. Does anyone think
that the Maha have any advantage over the iPower?

D.
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Larry Fisher

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Since: May 16, 2006
Posts: 530



(Msg. 4) Posted: Tue Nov 25, 2008 10:18 pm
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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>
>I guess that was actually my (unasked) question. Does anyone think
>that the Maha have any advantage over the iPower?
>
>D.

None that I can think of or measure.
LarryF
Lectro
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Batterywalla

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Since: Mar 19, 2008
Posts: 8



(Msg. 5) Posted: Wed Nov 26, 2008 8:36 am
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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On Nov 25, 7:17 pm, wrote:
> Anyone tried them?
>
> D.

I've tried the 300mAh Maha 9volt with mixed results. I bought 3 last
year and initially they were quite reliable. After a few months
however, 2 of the batteries melted......i kid you not. The outer
casing shrivelled/wrinkled spewing out the contents of the battery (a
white powder substance....the Nickel Hydride i presume). These events
took place 3 months apart and lucky for me, they were just sitting on
my shelf at the time. The distributer did exchange them but; I'm too
scared to stick them in any kit.
I've found these alternatives http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=2644
which are ok. The build quality is a little dubious;(the negative
terminal bends far too easily); but i get about 2hours 30 minutes from
my Lectro's (UH400A) running phantom at 48Volts. Had them for 8 months
and no problems so far.
I also own i-power 500 and 520mAh batteries,and can get almost 6 hours
powering my Lectro LMa's. I don't use the i-powers in my UH400A as
they simply don't want to work (they shut down unexpectedly.......to
this day i still can't figure out why.....ho hum).

Bal
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Larry Fisher

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Since: May 16, 2006
Posts: 530



(Msg. 6) Posted: Wed Nov 26, 2008 2:03 pm
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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On Wed, 26 Nov 2008 03:36:51 -0800 (PST),
"Batterywalla@googlemail.com" wrote:

[snip] 520mAh batteries,and can get almost 6 hours
>powering my Lectro LMa's. I don't use the i-powers in my UH400A as
>they simply don't want to work (they shut down unexpectedly.......to
>this day i still can't figure out why.....ho hum).
>
>Bal
 >> Stay informed about: Powerex 9.6v 230mAh batteries? 
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Larry Fisher

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Since: May 16, 2006
Posts: 530



(Msg. 7) Posted: Wed Nov 26, 2008 2:23 pm
Post subject: Re: Powerex 9.6v 230mAh batteries? [Login to view extended thread Info.]
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The switching power supply in the UH400a transmitter and the
protection circuitry in the iPower's don't always play well together.
Some transmitters will work with all iPower's and some iPowers will
work with all transmitters. But some of the batteries get fooled by
some of the transmitters.

UH400a's made after the middle of 2008 have a different power supply
IC with an added soft start circuit that doesn't trip the iPower
protection circuit.
LarryF
Lectro

On Wed, 26 Nov 2008 03:36:51 -0800 (PST),
"Batterywalla@googlemail.com" wrote:

[snip]

>I also own i-power 500 and 520mAh batteries,and can get almost 6 hours
>powering my Lectro LMa's. I don't use the i-powers in my UH400A as
>they simply don't want to work (they shut down unexpectedly.......to
>this day i still can't figure out why.....ho hum).
>
>Bal
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