Hello,
I've always had a curious interest in batteries and portable power. I've always felt empowered ( pun = happy accident ) not having to rely on the utility companies.
A short while ago, I assembled a battery backup for an equipment rack in my living room. The parts list is as follows:
1. 110v AC auto transfer switch. It's a cool device from a solar panel system.
2. 2500/5000 Watt power inverter.
3. Duralast Deep Cycle Marine Battery.
4. Battery Tender Plus High Efficiency model.
Wiring the Battery Tender to the Duralast battery to maintain a full charge, I connected the inverter. Plugged in to the auto transfer switch, I now have a battery backup system which supports the entire equipment rack. The battery always maintains a full charge and I'm able to monitor for the loss of power from the utility company and switch over to battery backup automatically when power is lost.
Based on the power demands of the equipment rack, I calculated about 6 hours of power. When I performed a test, the battery supported the rack for over 7 (I wonder why the discrepancy?). Obviously, this is a short term solution in the event of a power failure (I have a generator).
I want to expand my battery backup so that I can support more of my home for a longer period of time.
I've been looking at plans to build led acid batteries. What I have found is that within a led acid battery are 6 smaller cells, each of about 2.3v connected in series. When you take into consideration the cost of materials to build a battery and then multiply by the number batteries required, it is not much more expensive to purchase the number of led acid batteries you need.
Would I have to connect these batteries in parallel? I would be connecting this battery array to a dc to ac inverter of at least 10000 watts. Also, while a battery tender may be able to charge an array of 6 batteries, wouldn't it be a really SLOW charge?
I'm in the research stage and welcome lots of input. I can't possibly think of everything on my own and embrace a collaborative effort.
Thanks
Lyman
I've always had a curious interest in batteries and portable power. I've always felt empowered ( pun = happy accident ) not having to rely on the utility companies.
A short while ago, I assembled a battery backup for an equipment rack in my living room. The parts list is as follows:
1. 110v AC auto transfer switch. It's a cool device from a solar panel system.
2. 2500/5000 Watt power inverter.
3. Duralast Deep Cycle Marine Battery.
4. Battery Tender Plus High Efficiency model.
Wiring the Battery Tender to the Duralast battery to maintain a full charge, I connected the inverter. Plugged in to the auto transfer switch, I now have a battery backup system which supports the entire equipment rack. The battery always maintains a full charge and I'm able to monitor for the loss of power from the utility company and switch over to battery backup automatically when power is lost.
Based on the power demands of the equipment rack, I calculated about 6 hours of power. When I performed a test, the battery supported the rack for over 7 (I wonder why the discrepancy?). Obviously, this is a short term solution in the event of a power failure (I have a generator).
I want to expand my battery backup so that I can support more of my home for a longer period of time.
I've been looking at plans to build led acid batteries. What I have found is that within a led acid battery are 6 smaller cells, each of about 2.3v connected in series. When you take into consideration the cost of materials to build a battery and then multiply by the number batteries required, it is not much more expensive to purchase the number of led acid batteries you need.
Would I have to connect these batteries in parallel? I would be connecting this battery array to a dc to ac inverter of at least 10000 watts. Also, while a battery tender may be able to charge an array of 6 batteries, wouldn't it be a really SLOW charge?
I'm in the research stage and welcome lots of input. I can't possibly think of everything on my own and embrace a collaborative effort.
Thanks
Lyman