Mevuxatrox
New Member
Hello everyone!
I have a problem that's been on my mind for a while now and i haven't been able to
find a reliable solution to my needs so far. Thus, i have decided to ask for help on
various forums to see if there is anyone with the skill and experience who could provide
solid instructions or advice on how to achieve what needs to be achieved.
(I apologize in advance for my limited english skills, I am not a native speaker.)
To make things a bit easier, let's say hypothetically that i need to build a miniature
bomb shelter (I'm not building a bomb shelter but we can all blissfully pretend i will).
In this construction, i need to have a fan and 4 lightbulbs connected to some sort of
UPS unit, battery bank, inverter or something which will be able to provide power
for a minimum of 2 hours straight in case of a power shortage.
People will be living in the bombshelter so risk of fire or release of harmful gases
has to be minimized.
The fan will be running at 40W, 220/230 Volt, 0.21A.
The lights will be 4 x 8W CFL bulbs.
My hopes are to be able to build an arrangement like this on a tight budget as possible
while having it run safely with minimized risk of fire or release of hazardous gases etc.
So i presume an offline setup would be the best?
My plan was to get an old UPS unit and daisychaining external hobby/motorcycle batteries
to lengthen the back-up runtime to a minimum of 2 hours.
So far what i think i have figured out is that deep cycle discharge batteries (gelcells?)
would be the best since they release no gases (unless i've misinterpreted this info).
What worries me is how to get the right Voltage and amps to run both fan and lights
without blowing eiher to smithereens.
If i use an old UPS unit, what VA and W should i have to which batteries?
How would this be built/assembled/connected?
In total, power consumption in case of a power shortage will probably not exceed 100W.
What kind of UPS could i get away with using which would be compatible with this
output with a daisychained battery stack?
Is there anything else which would be a better option?
Since this isn't about computers, the switch to back-up power probably doesn't have to
be immediate so ms's are probably of less importance unless it could fry the electronics
in the fan or lights.
Has anyone built something similar and what are your experiences?
I would be very thankful if i could get any advice.
I have a problem that's been on my mind for a while now and i haven't been able to
find a reliable solution to my needs so far. Thus, i have decided to ask for help on
various forums to see if there is anyone with the skill and experience who could provide
solid instructions or advice on how to achieve what needs to be achieved.
(I apologize in advance for my limited english skills, I am not a native speaker.)
To make things a bit easier, let's say hypothetically that i need to build a miniature
bomb shelter (I'm not building a bomb shelter but we can all blissfully pretend i will).
In this construction, i need to have a fan and 4 lightbulbs connected to some sort of
UPS unit, battery bank, inverter or something which will be able to provide power
for a minimum of 2 hours straight in case of a power shortage.
People will be living in the bombshelter so risk of fire or release of harmful gases
has to be minimized.
The fan will be running at 40W, 220/230 Volt, 0.21A.
The lights will be 4 x 8W CFL bulbs.
My hopes are to be able to build an arrangement like this on a tight budget as possible
while having it run safely with minimized risk of fire or release of hazardous gases etc.
So i presume an offline setup would be the best?
My plan was to get an old UPS unit and daisychaining external hobby/motorcycle batteries
to lengthen the back-up runtime to a minimum of 2 hours.
So far what i think i have figured out is that deep cycle discharge batteries (gelcells?)
would be the best since they release no gases (unless i've misinterpreted this info).
What worries me is how to get the right Voltage and amps to run both fan and lights
without blowing eiher to smithereens.
If i use an old UPS unit, what VA and W should i have to which batteries?
How would this be built/assembled/connected?
In total, power consumption in case of a power shortage will probably not exceed 100W.
What kind of UPS could i get away with using which would be compatible with this
output with a daisychained battery stack?
Is there anything else which would be a better option?
Since this isn't about computers, the switch to back-up power probably doesn't have to
be immediate so ms's are probably of less importance unless it could fry the electronics
in the fan or lights.
Has anyone built something similar and what are your experiences?
I would be very thankful if i could get any advice.