> From: "Peri Hartman" mailto:pe...@kotatko.com>>
>
> The spec claims it has 1080 joules,
I suspect that is the surge protection rating of the varistors across the line,
NOT the backup energy rating.
You can easily calculate the energy rating by multiplying the energy capacity
of the battery
Original Message-
From: "Peri Hartman via EV"
> Hmm. Well, yes, there are two batteries in it but I can't tell the Ah.
> I'll find out soon, when the power goes off :)
> You seem reasonably confident that the charger won't overload, it will
> just take longer. My concern is that it
Peri Hartman via EV wrote:
First, thanks for everyone's replies. Appreciated.
The unit I bought is rated for 900w and 1500VA. The specs don't list the
Wh but, again, my guess is around 100Wh.
The idea of hacking the unit and putting in a larger battery is
tempting. Theoretically, if it is
(schnider).
Peri
<< Annoyed by leaf blowers ? https://quietcleanseattle.org/ >>
-- Original Message --
From: "jim--- via EV"
To: "Electric Vehicle Discussion List"
Cc: "j...@k6ccc.org"
Sent: 24-May-21 8:16:52 AM
Subject: Re: [EVDL] small UPS
From: "Peri Hartman via EV"
> The unit I bought is rated for 900w and 1500VA. The specs don't list the
> Wh but, again, my guess is around 100Wh.
That seems a pretty small battery for a 1500VA UPS Very commonly those use two
7A 12V sealed Gel Cells in series.
> The idea of hacking the unit
le.org/ >>
-- Original Message --
From: "Jim Walls via EV"
To: ev@lists.evdl.org
Cc: "Jim Walls"
Sent: 23-May-21 6:52:30 PM
Subject: Re: [EVDL] small UPS
On 05/23/2021 18:16, Peri Hartman via EV wrote:
Somewhat off topic...
For some time, I've been meaning to ge
If you are looking for one that small (I’m not sure exactly the size of mine -
it may be smaller) you can have it for free.
It has just sat in a box, so I don’t know if the battery is any good, but the
electronics should still be fine.
You just have to pick it up. I’m in Orange County.
- Mark
It’s been decades since I bought a UPS, but I would look at APC.
- Mark
Sent from my Fuel Cell powered iPhone
> On May 23, 2021, at 6:16 PM, Peri Hartman via EV wrote:
>
> Somewhat off topic...
>
> For some time, I've been meaning to get a small UPS to power my router,
> laptop, and other
More than somewhat off topic, but what the heck.
First off, the "joules" rating of your UPS probably refers to its built in
TVSS's ability to absorb surge energy.
That strongly suggests that you have a small office or home device. These
usually cost in the low to mid 2-figures to the low
I found a big 3 kW UPS that was being tossed because the batteries
were dead. It ran on 72 volts. six gel cells.
I brought it home and bought six deep cycle external lead acids and
use it for my house primary backup.
Unfortunately in the 6 years I have had it, we have never lost power
for
Peri Hartman via EV wrote:
For some time, I've been meaning to get a small UPS to power my router,
laptop, and other electronics in case of an emergency... My thought is
to buy a 12v deep cycle battery and hook up a charger, an inverter, and
contactor to switch from wall to battery. I'm pretty
On 05/23/2021 18:16, Peri Hartman via EV wrote:
Somewhat off topic...
For some time, I've been meaning to get a small UPS to power my
router, laptop, and other electronics in case of an emergency. Well,
our power will be off monday for utility work and so I bought a small
UPS. But, I'm
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