Theoretical battery power supply question
I’m toying with the idea of taking my audio system (minus the power amp) off the grid and using a lithium battery to power my streamer, DDC, DAC, and preamp. I checked and all components together require 83 Watts of power and the battery I’m considering can supposedly handle up to 300W power consumption with 600W peak capability. Seems like this should work and might offer some significant sonic benefits on the relative cheap, but can anyone here with more knowledge of electronics and battery power enlighten me on why this would or would not work or being worthwhile trying? Obviously my biggest concern is I don’t want to damage any of my components over this, so I’d certainly be interested in any risks I might be open to here. This is the battery I’m considering, and thanks for any thoughts, info, and expertise.
I’d be concerned that the inverter produces dirtier electricity that the wall outlet. All the marketing managers say "pure sine wave". i’m sure your wall outlet easily meets their requirements. Inverters are not easy.
Second issue that a lot of people don’t think about, maybe you have, is that when your battery is plugged in for charging you’re running off wall power, not battery power, so you have to physically unplug the charger while you are using the battery. |
Interesting stuff. Point taken about the quality of the inverter that I can’t think is very good at this price level. Given this would be powering about $5k of electronics I’m not willing to risk potentially damaging the equipment due to dirty power, fluctuations, etc. so if I do it I’ll look to the options mentioned here. Nobody really addressed the question if this battery would have ample power to drive four devices that require 83W to run. Seems like it should, but what wattage battery would you recommend for that load? |
The unit is rated for 280WH (Watt Hours), which means it can power 1 Watt for 280hrs. 83 Watts for 3.37 hrs (280/83) assuming 100% efficiency. However, the FAQ on your URL seems to indicate 85% efficiency in their example. In which case: 238/83 = 2.86hrs.
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@rhg3 Yup, I used the same calculation and if I pursued this I’d go with their 500W version that’d get me 7+ hours of use. But at only $175 I might try the 300W version just with my $400 streamer and see what sonic benefits I get, if any. Plus, if it blows up I’m not out all that much and gives me an excuse to upgrade my streamer — heh heh. I’ll follow up if I decide to roll the dice. |
