12 volt electricity
This is something we deal with on boats... I think this is the formula: Take the wattage (250) divide by 12 (batteries are 12 volts) and you get about 21 amps. Thats the draw. A 28AH battery (Amp Hours) like that Xantrex emergency pack, will be discharged enough to ruin the battery in less than an hour. You would need a huge truck battery (like an 8D) to last all night and then you would have to figure out a way to charge it all day long to get it up to charge for the next night. Totally inefficient, not to mention expensive.
It would be easier & cheaper to hire an electrician to run an exterior power line out to the coop IMHO.
Stacey
This is something we deal with on boats... I think this is the formula: Take the wattage (250) divide by 12 (batteries are 12 volts) and you get about 21 amps. Thats the draw. A 28AH battery (Amp Hours) like that Xantrex emergency pack, will be discharged enough to ruin the battery in less than an hour. You would need a huge truck battery (like an 8D) to last all night and then you would have to figure out a way to charge it all day long to get it up to charge for the next night. Totally inefficient, not to mention expensive.
It would be easier & cheaper to hire an electrician to run an exterior power line out to the coop IMHO.
Stacey