I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

Bill Baxter wrote:
I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

Heh, being you can get a whole new UPS for $40...

http://www.microcenter.com/product/3...1_Protectio n

and the replacement battery runs around $30, I really don't see the point.

Even the retail places like Office Depot and NewEgg selling the complete unit
for $52, it's still not much of a decision to make.

-bruce

On Tue, 16 Feb 2016 17:40:30 -0500, Bill Baxter
wrote:

I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

I've had good results with Panasonic, Yuasa, and the lesser brand
Apex.

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On Tue, 16 Feb 2016 17:40:30 -0500, Bill Baxter
wrote:

I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

Well, the first step is to identify the model number of your
CyberPower 550VA UPS. My guess is that it's a CP550SLG. Then Google
for "[insert model number here] replacement battery". You should find
plenty to choose from. In general, I prefer AGM batteries with the
highest weight (more lead inside). Watch out for shipping charges.
Something like this:
https://www.google.com/#q=cyberpower+CP550SLG+replacement+battery
Hmmm... 12v 5A-hr. Not much capacity and therefore not much runtime.
Let's say you have a new battery and a 100 watt load. The battery can
deliver:
12v * 5A-hr = 60 watt-hr
However, you don't want to totally drain the battery as that would
kill it. So, figure on getting about 50% of capacity out of the
battery or about 30 watt-hrs. A 100 watt load will theoretically run
for:
30 watt-hrs / 100 watts = 0.3 hrs = 18 minutes

Getting longer life from a UPS battery is not going to be solved by
simply buying a better battery. Typically, I see about 5 years of
battery life on commodity UPS's.

Having the power go out for a time, where the battery goes into deep
discharge (i.e. 10% of full charge) a few times, is going to kill most
batteries. To increase battery life, the designers would need to
reduce the maximum charge level, and turn off the UPS when the
discharge reaches about 50%. That would have a BIG effect on how long
the UPS will run on battery, which would give you something else to
complain about. You could do it with much larger external batteries,
but those cost more.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Mon, 22 Feb 2016 16:03:24 -0000 (UTC), wrote:

Mouser sells a Power-Sonic PS-1270F2 (12 V, 7.0 Ah) for $23, quantity
one:
http://www.mouser.com/search/Product...alkeyPS-1270F2

Battery Sharks sells a "Power Sonic PS-1270-F2 Battery (Replacement)"
for $11, quantity one:
http://www.batterysharks.com/Power-S...f2_ups12-7.htm

The way I read that is that's a *replacement* for a Power-Sonic battery,
and not actually a Power-Sonic battery. The price also makes me think
it's a junk battery, and not actually a Power-Sonic.

That's also the way I read it. However, note the battery weights.
From the respective web piles, the real PowerSonic weighs 4.80 lbs,
while the Battery Sharks clone weighs 5.25 lbs. I differentiate
battery quality of identical size batteries by their weight, which is
an indication of how much lead is in the battery. Based on that
metric, the weight differnce (10%) suggests that the Battery Sharks
clone is the better battery.

Of course, Battery Shark could be inflating the battery weight because
they know about the weight trick. Double checking:
http://sigmastek.com/files/specsheets/SP12-7(T1).pdf
Yep, Battery Sharks is lying on their web pile. The data sheet shows
4.52 lbs, which is LESS than the real Power Sonic. The battery is
probably crap and I don't think I would trust the dealer.

Incidentally, you can also get the same Sigmastek battery from the
Battery Sharks people for $9.69 without the claim of PowerSonic
equivalence.
http://www.batterysharks.com/SigmasTek-SP12-7-p/sp12-7_b12-7.htm

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Mon, 22 Feb 2016 08:50:20 -0800, Jeff Liebermann
wrote:

Of course, Battery Shark could be inflating the battery weight because
they know about the weight trick. Double checking:
http://sigmastek.com/files/specsheets/SP12-7(T1).pdf

Also:
http://sigmastek.com/EN/products.cfm?page=products&seriesID=1&productID=10 8
I just found a reason to buy Sigmatek batteries. The upper right of
the page proclaims that they offer "Passionate Customer Service". It
might be worth buying their battery just to try out their customer
service.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On 2/16/2016 2:40 PM, Bill Baxter wrote:
I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

If the original battery served you well, the first thing I would do is
take it out and have a careful look at it. If you don't mind a little
online research, chances are very good that you will be able to find a
literal twin of the OEM version with an aftermarket brand on it.

Oh... and +1 on the Power-Sonic batteries - I have had good luck with
those as well.

"Bruce Esquibel" wrote in message
...

Bill Baxter wrote:
I have a Cyberpower 550VA USP whose battery needs replaced. I see many
options during googling, but I'd like to find something that will last.
I know some of the generics aren't the greatest. Suggestions? Thanks!

Heh, being you can get a whole new UPS for $40...

http://www.microcenter.com/product/3...1_Protectio n

and the replacement battery runs around $30, I really don't see the point.

Even the retail places like Office Depot and NewEgg selling the complete
unit
for $52, it's still not much of a decision to make.

-bruce


Besides Money, Ecologic impact should also be am important factor. It
requires a lot less land fill to recycle a battery vs replacing the whole
unit. Our Planet earth is in trouble, we have to consider it aswell as just
money.

Shaun

Jeff Liebermann wrote:

Of course, Battery Shark could be inflating the battery weight because
they know about the weight trick. Double checking:
http://sigmastek.com/files/specsheets/SP12-7(T1).pdf
Yep, Battery Sharks is lying on their web pile. The data sheet shows
4.52 lbs, which is LESS than the real Power Sonic. The battery is
probably crap and I don't think I would trust the dealer.

All that may not matter though.

I dunno if you caught this story a day or two ago:

https://www.youtube.com/watch?v=BxZDzXv4fnM

The short version if you don't want to watch the whole thing, the guy owns
an expensive Nagra digital recorder where the rechargable battery is a $700
replacement item.

He took it apart and found a single Lithium cell battery and "foam". The
battery is about $40.

I mean people who buy/need Nagra hardware probably wouldn't care, the point
is, you can get ripped off on both ends of the market.

-bruce

Shaun wrote:

Besides Money, Ecologic impact should also be am important factor. It
requires a lot less land fill to recycle a battery vs replacing the whole
unit. Our Planet earth is in trouble, we have to consider it aswell as just
money.

Really?

You have a sure fire solution for getting the tree bark off your t-shirt
after you get done hugging it?

Recycling it usually means the **** is sent to some 3rd world country where
8 and 9 year old kids get to stand in mud fields in 100 degree heat smashing
the stuff into peices for 10 cents a day.

At least here in the states some landfills are being converted into methane
production green fields that'll end up as parks some day.

There is always two sides to a coin.

-bruce

Jeff Liebermann wrote:
Also:
http://sigmastek.com/EN/products.cfm?page=products&seriesID=1&productID=10 8
I just found a reason to buy Sigmatek batteries. The upper right of
the page proclaims that they offer "Passionate Customer Service". It
might be worth buying their battery just to try out their customer
service.

Post pics!

Matt Roberds

On Wed, 24 Feb 2016 06:15:06 -0000 (UTC), wrote:

Jeff Liebermann wrote:
Also:
http://sigmastek.com/EN/products.cfm?page=products&seriesID=1&productID=10 8
I just found a reason to buy Sigmatek batteries. The upper right of
the page proclaims that they offer "Passionate Customer Service". It
might be worth buying their battery just to try out their customer
service.

Post pics!
Matt Roberds

Right.

Long ago, in a legendary electronics paradise called Silicon Valley, I
was a young, naive and inexperienced circuit designer. When I would
contact a vendor begging for data sheets, prices, and samples, they
would usually be accompanied by a visitation by a salesperson, usually
with a highly creative title and elaborate business card. My job was
to pry the information and samples from their possessive clutches.
They seemed to believe that only the truly worthy may view or posses
these jewels. After a few mistakes, I learned the necessary protocols
and was able to get the job done without much difficulty.

One day, I received a visit from a local PCB house wanting my
business. Instead of an aging and burnt out male sales engineer in a
seriously expensive suit (with white shoes), I was accosted by a
gorgeous former fashion model. Not only did she match my idea of what
constitutes beauty, but she also knew the PCB business quite well, and
was familiar with most of the problems we had with environmental
requirements, testing, and RF specific problems. I was thoroughly
infatuated but tried not to show it. I also had no idea what to do,
made a fair simulation of a fumbling idiot, and accidentally handed
her copies of some confidential papers (which I later recovered).

Before handing the business to the gorgeous former fashion model's PCB
house, the high command demanded that I get competitive bids. I
called two other local PCB houses, and was blessed with two additional
gorgeous former fashion models selling PCB boards. Apparently the
technique was so successful, that other PCB houses had adopted the
same strategy.

As one might predict, I again simulated a totally useless fumbling
idiot. The problem was obvious and responsibility for juggling PCB
vendors was handed to someone older, married, and allegedly immune to
the salespersons charm. I was also marked as some kind of sex maniac,
not to be allowed anywhere near beautiful salespeople.

I presume that the Chinese battery vendors have discovered the method
and are using it to their advantage.



--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558