[CTSARA] Energizer Universal 18000 mAh Portable Battery Pack andCharger

[Jonathan Solomon]

Jon, everyone-

I was thinking radios, but you bring up a good point.  On the other
hand, this could power an HT for many hours, or even a packet or
PSK-31 station for a while.

Or a base station at lower power.  I would doubt there is much voltage
regulation on it, but I would also assume it would be pretty stable
until about 80% of charge.

There are some links in the forum to manuals and such.

But again, I was thinking more in terms of HTs.

73s
JS

On Mon, Sep 14, 2009 at 11:28 AM, Jon Perelstein <jperelst at yahoo.com> wrote:
> Jonathan,
>
> Are you thinking of this thing to power radios or to power
> cellphones/laptops, etc.?
>
> Looking at the specs, there are two things that I'm unclear on, both related
> to the rated output ("Rated Output: DC 5-20V, Max 3500 mA").
>
> 1.  What kind of power can one run from a ham radio using this battery?  For
> example, 3500mA means about 25 watts output from the typical ham radio
> (13.8v x 3.5amps = 48.3 watts, and the typical ham radio is about 50%
> efficient, meaning that 48.3 watts in will result in about 25 watts out).
> For example, the FT-7800 (which is reasonably efficient radio) needs 8.5
> amps at 13.8 volts to drive 50 watts output.  Can this thing really do
> 3500mA out.
>
> 2.  How well does it regulate voltage at different output levels?  If I'm
> driving the battery at 3500mA out, will it give me 13.8v, or 12.8v or 5v or
> what?  I don't see anything in the information they're giving that would
> indicate voltage regulation ability.
>
> Jon
>
> -----Original Message-----
> From: ctsara-bounces at mailman.qth.net [mailto:ctsara-bounces at mailman.qth.net]
> On Behalf Of Jonathan Solomon
> Sent: Monday, September 14, 2009 11:04 AM
> To: ctsara Mailman
> Subject: [CTSARA] Energizer Universal 18000 mAh Portable Battery Pack
> andCharger
>
> Folks-
>
> www.woot.com offer today is:
> Energizer Universal 18000 mAh Portable Battery Pack and Charger for
> $99.99 (+$5 shipping).
>
> I buy from these guys all the time. If anybody would like one (or
> more) and doesn't want to sign up, I'd be happy to buy them for you (and get
> reimbursed!).
>
> The specs are below.  I understand it will do 12V...
>
> Jon W3EIC
> --Snip & Clip--
>
>