voipdabbler
join:2006-04-27
Kalispell, MT | reply to buckeyered
Re: Power failure
You must have one heck of a UPS system. I have two, but the batteries are small and only meant to last long enough to power down equipment, not run it through a power outage. What capacity does your UPS have? |
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mazilo
From Mazilo
Premium
join:2002-05-30
Lilburn, GA
| said by voipdabbler  :I have two, but the batteries are small and only meant to last long enough to power down equipment, not run it through a power outage. I have some clients in some other 3rd world countries using various UPS; however, most of them have replaced the original dead battery with a car battery and the UPS can easily run more than 6 hours during an outage. To avoid the H2S gas emits from the car battery, they locate this battery out door and run a heavy gauge pair of wire from the battery to the UPS. Honestly, I don't know if such a hack is legal here in the US. Anyone?
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Mazilo always prays for FREEBIES!
US Phone: +1-678-601-0907
UK Phone: +44-703-194-2574
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buckeyered
Premium
join:2005-05-07
Hamilton, OH
 ·VoicePulse
·QuantumVoice
| reply to voipdabbler
560W/900VA will run the modem, router, 2 ATA's and the cordless phone base for around 90 minutes, I could drop one non essential ATA and the cordless phone base to stretch it out even more.
I thought about the car battery idea but I would prefer to keep the battery in the house if a sealed (maintenance free?)car battery is really sealed and wont omit gas but I am not sure if they are truly sealed.
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'If you change phone numbers one more time I am leaving you.' - My wife |
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asitgoes
@wavecable.com | reply to mazilo
As long as its not wired into the house... |
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voipdabbler
join:2006-04-27
Kalispell, MT
| reply to mazilo
I know I hated dealing with the sealed, re-chargable RV batteries when I had a camper. Even with solar panels, they didn't seem to have a life span greater than 18 months. You could use a sealed re-chargable RV battery fairly safely, just expect to replace them fairly frequently. |
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mazilo
From Mazilo
Premium
join:2002-05-30
Lilburn, GA
| said by voipdabbler :You could use a sealed re-chargable RV battery fairly safely, just expect to replace them fairly frequently. Let me guess, this sealed re-chargeable RV battery is pretty expensive compared to a regular car battery of the same ratings, isn't it? |
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mgraves1
join:2004-04-05
Houston, TX
·Junction Networks
2 edits | reply to buckeyered
I have the fol,lowing list of gear on a 2500 VA UPS. It can run for over an hour with no problem. Never had to deal with longer thus far as I have a small generator. We live in hurricane alley (Texas gulf coast)
Siemens DSL modem
Soekris 4801 (monowall router)
HP T5700 hosted Asterisk server
Netgear 24 port switch
2 POE insertors
2 Polycom IP 600s
Siemens S685IP DECT phone base
snom m3 DECT phone base
Portech GSM gateway
None draws much power so the UPS is actually overkill. I haven't tested the UPS since adding some gear, but each item draws less than 12 watts.
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Michael Graves
Houston TX
»blog.mgraves.org |
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mazilo
From Mazilo
Premium
join:2002-05-30
Lilburn, GA
| said by mgraves1 :I have the fol,lowing list of gear on a 2500 VA UPS. In your case, you are better off to use a much smaller UPS that has a much better power factor for efficiency. |
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voipdabbler
join:2006-04-27
Kalispell, MT
| reply to mazilo
Yes, they're too expensive. Battery technology, and the lack of real developments in high-capacity, long-life batteries is going to be the stumbling block for cost-effective, non-fossil fuel energy systems used by individual home owners. It's all fine and good to capture energy, like solar or wind, but if your battery banks need replacing every 24 months, it gets to be very, very expensive. (Plus you need to keep track of your power consumption and learn to conserve, which many just can't seem to do.) I see the future of solar, wind, etc, being large power plants that deliver what they generate via a grid and don't worry about storing excess capacity for later use.. |
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