Solar Powered Aquarium

[lkruper]

You mean just record in your computer, I got it now. the one I use now which is backup ups 1200VX, I don't think it has a serial port in it, the newer small smart ups 650 that I have in my wife's shop has a serial port.

Not sure if any data is stored in the computer, but in my APCs the units themselves store incidents and lengths of outages. The software just reads what is stored in the UPS but also allows for some features to be customized... for example the alarm can be muted. Also, the computer is told when to shut down itself to save data and how much battery to reserve before shutdown.

[paulcheung]

You mean just record in your computer, I got it now. the one I use now which is backup ups 1200VX, I don't think it has a serial port in it, the newer small smart ups 650 that I have in my wife's shop has a serial port.

[lkruper]

Remember internet was just available to the regular household the last few years. No one in their right mind would have a dedicated internet connect to a web site just to report some household grid down time. that would run Thousands US dollars per month in the 90's or early 2000.

The software APC provides is Windows based software with either serial or usb connection to the UPS. No internet connection needed.

[paulcheung]

Remember internet was just available to the regular household the last few years. No one in their right mind would have a dedicated internet connect to a web site just to report some household grid down time. that would run Thousands US dollars per month in the 90's or early 2000.

[lkruper]

Not many deep cycles that I know. it is standby so I won't know how many short shallow ones when I am not home.

The UPS APC sells now record the power outages and display them with the free software that is available on the APC web site. I don't know when they first started providing it, but I do believe it is legacy software which has been around for quite some time. I remember it for sure back in the 90s.

[paulcheung]

Not many deep cycles that I know. it is standby so I won't know how many short shallow ones when I am not home.

[lkruper]

As I stated in previous post I can't get the AGM batteries, my UPS is the old 20 years old APC BACKUP-UPS 1200VX. the batteries I use are sealed SLI 70 amps hours batteries. The last set last around 3 to 4 years.

How many times did they get cycled in 3-4 years?

[paulcheung]

That's a good point, considering that the Samlex system I described is a DC UPS which means the inverter would run all the time, unlike a traditional AC transfer switch. And your point about the internal battery not being needed makes sense considering it is plugged into AC.

Do I understand you correctly that you have an APC UPS with your own larger AGM batteries connected? If so, can you give the details as to what model and what batteries you are using?

As I stated in previous post I can't get the AGM batteries, my UPS is the old 20 years old APC BACKUP-UPS 1200VX. the batteries I use are sealed SLI 70 amps hours batteries. The last set last around 3 to 4 years.

[lkruper]

FYI folks, DC in this case stands for Dual Conversion, not Direct Current.

http://www.samlexamerica.com/products/ProductDetail.aspx?pid=171

By means of a DIP switch setting, conversion to a two-stage algorithm is possible to charge batteries connected to a DC load (DC UPS). The unit can also be used as a DC Power Supply.

From the manual:
Can be used as a power supply or as
a DC UPS (Uninterruptible DC Power
Supply) when used with a battery (DIP
Switch set at "Battery with load")

(,,,)

In a DC UPS (Un-interruptible Power Supply)
, the charger simultaneously powers
the DC load as well as the battery. As long
as the AC power to the charger is available
and the charger is working normally,
the charger will supply the DC load as well
as charge/float the battery. In case the AC
power fails or if the charger stops work-
ing, the battery will automatically power
the DC load. As soon as the AC power to
the charger is restored , the DC load will
once again be fed by the charger and at
the same time the battery will be
recharged.

[inetdog]

That's a good point, considering that the Samlex system I described is a DC UPS which means the inverter would run all the time, unlike a traditional AC transfer switch. And your point about the internal battery not being needed makes sense considering it is plugged into AC.

Do I understand you correctly that you have an APC UPS with your own larger AGM batteries connected? If so, can you give the details as to what model and what batteries you are using?

FYI folks, DC in this case stands for Dual Conversion, not Direct Current.

[lkruper]

Another thing about ups is they are standby unit, they don't work during the normal hours until the grid is down, so they don't stress out like the inverter which run 24/7. that is my take for the OP issues.

That's a good point, considering that the Samlex system I described is a DC UPS which means the inverter would run all the time, unlike a traditional AC transfer switch. And your point about the internal battery not being needed makes sense considering it is plugged into AC.

Do I understand you correctly that you have an APC UPS with your own larger AGM batteries connected? If so, can you give the details as to what model and what batteries you are using?

[paulcheung]

Another thing about ups is they are standby unit, they don't work during the normal hours until the grid is down, so they don't stress out like the inverter which run 24/7. that is my take for the OP issues.

[paulcheung]

Yes, I specified a smaller inverter because my APC 1500 + battery pack is used to power about 90w load, TV, Satellite, etc as well. So I don't need more capacity. However, I could also keep the price down by getting a larger MSW inverter for about the same price because the APC is not pure sine wave. The overall cost would be about the same. I don't think the 1500 would work if it did not have the internal 9ah batteries, would it?

It will work without the internal battery. at least mine works. If not, then just connect the external battery to the internal cable.

[lkruper]

The Cotek inverter is 150 watts and the UPS 1500VA is 865 watts, two different thing. I don't plug my fridge or freezer in the ups, I only plug in light, tv and fans in it, they working fine. Remember the ups is plug and play, only connect the external battery on it. others have to match equipment.

I would just discard the 9AH battery if I get the 200 amps AGM.

Yes, I specified a smaller inverter because my APC 1500 + battery pack is used to power about 90w load, TV, Satellite, etc as well. So I don't need more capacity. However, I could also keep the price down by getting a larger MSW inverter for about the same price because the APC is not pure sine wave. The overall cost would be about the same. I don't think the 1500 would work if it did not have the internal 9ah batteries, would it?

[paulcheung]

Many Samlex chargers have a DC UPS built into them. Also remember that the APC is not pure sine wave, so that lowers the cost.

Samlex charger/DC UPS - SEC-1215UL - $130
Cotek Pure Sine Wave Inverter - S150-112 - $139

The Cotek is a pure sine wave inverter, unlike the APC. The one thing the APC does that is programmable is that there is a setting to cause the unit to shut down without discharging the battery. To get this feature, one can add a Samlex battery guard which can be programmed for Low Voltage Disconnect for about $115.

So for $384 one gets a DC UPS, real two or three stage charger with meaningful amps to take care of expensive batteries and a pure sine wave output along with the ability to choose from 10 different LVD settings. The charger also has settings for different kinds of batteries.

What happens to the 200AH AGM batteries put in parallel with 9AH UPS batteries in the APC UPS of a different type and size?

The Cotek inverter is 150 watts and the UPS 1500VA is 865 watts, two different thing. I don't plug my fridge or freezer in the ups, I only plug in light, tv and fans in it, they working fine. Remember the ups is plug and play, only connect the external battery on it. others have to match equipment.

I would just discard the 9AH battery if I get the 200 amps AGM.