Battery backup copes with musical transients
Enphase Energy makes an AC battery. https://en.wikipedia.org/wiki/Enphase_Energy Millercarbon, you seem to know it all, tell me where do you get off telling other people what to do? |
No such thing as an AC battery. What you have is some sort of power storage unit with its own built-in charger that converts AC to DC to charge the battery, and inverter that converts DC to AC to power your house. All this converting is highly ironic considering the main job of the power supply inside every component is to convert AC to DC. All our components run on DC. You will get a lot more sound quality when this thing is disconnected from the grid. Then if you were able to regulate the DC and turn it into a DC power supply for each component, bypassing the components power supply stage, that would be another big bump in performance. Sounds like a lot, but we are after all talking about someone who just dropped twenty large on a battery, and nonchalant about the same on an amp, so what's the holdup? |
You're absolutely correct about the inverter. The battery takes AC so I'm guessing the inverter is built in. The advantage of an AC battery is that it will work with any solar panel (after inversion). You know I didn't ask how long the battery will last and they don't mention it in the user manual. You're also correct that 20K is a mouthful. But there are components that cost more than that. Did I mention that it's really nice to be free from worrying about outages? |
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That is very kind of you to say. So you want to know about the battery. The lithium battery is forty five inches high, thirty inches wide, eighteen inches deep. In my house the battery is inside, but it can go outside. Inside away from the elements is better for the battery. The house runs off the battery from 2 PM till 10 PM when it starts charging off the grid. All this happens automatically. After 10 PM is when the electricity rate is lowest so it's shifting power from the cheapest time to the most expensive time. The money I save equates to a ten year payback on the 20K price of the battery backup system (including install and permits). If there's a power outage outside of the 2 PM to 10 PM window when the battery's on, the battery switches on automatically. The switch takes a split second so you still need to plug your computer and modem into an uninterruptible power supply to cover that split second when it's without power. My audio has enough reserve in its caps to cover the gap without an uninterruptible power supply. |
onhwy61 wanted to know about my audio system and the battery. https://systems.audiogon.com/systems/7309 The battery is a commercial product so it is a black box to me. It switches automatically from the grid to the battery at 2 PM. I'm just happy the music sounds as good on battery power which was my concern going in. mkgus: the battery is big enough to run the whole house for a day so it bears out the theory about needing a big battery for transients. millercarbon: There isn't a way to manually disconnect from the grid so cannot try out your suggestion intriguing as it is. |
chowkwan, I was expecting you to say it sounds better on the battery. It will, if you are able to switch it to be cut off from AC when you are listening. In one of the early versions of my turntable the motor was battery powered. The battery charger was connected to AC. It was just a very small version of yours. Even running off battery it sounded better when the AC was disconnected. Probably because noise riding on the AC line is able to ripple across the battery. Physically disconnecting it removes this noise and the sound improves. |
