2. amps-preamps
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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. 

https://www.amazon.com/ALLWEI-Portable-Generator-78000mAh-Emergency/dp/B08CXN4TZR/ref=sxbs_pa_sp_search_thematic_btf_sspa?content-id=amzn1.sym.695e268e-ec60-465b-99cc-6a0ed7b3b9f7%3Aamzn1.sym.695e268e-ec60-465b-99cc-6a0ed7b3b9f7&cv_ct_cx=lifepo4%2Bbackup%2Bbattery&gclid=EAIaIQobChMI5Pnfw53--QIV_smUCR0sNQoNEAAYASAAEgK42_D_BwE&hvadid=599684279414&hvdev=c&hvlocphy=9067609&hvnetw=g&hvqmt=e&hvrand=500842445123982892&hvtargid=kwd-1200939481082&hydadcr=12987_10870525&keywords=lifepo4%2Bbackup%2Bbattery&pd_rd_i=B08CXN4TZR&pd_rd_r=8a4f7e3b-6dec-40b8-a992-016ff5daaa97&pd_rd_w=N8yvV&pd_rd_wg=M5BKT&pf_rd_p=695e268e-ec60-465b-99cc-6a0ed7b3b9f7&pf_rd_r=8GADP5VP37YJZNTVVA3B&qid=1662400851&sr=1-2-dee36d41-3265-4e30-99c6-4e7343298906-spons&ufe=app_do%3Aamzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExWVkzOFRUMjhONllBJmVuY3J5cHRlZElkPUEwODUzODgzSlBKUVE3SkJSSlc0JmVuY3J5cHRlZEFkSWQ9QTA5NDI1MjkySlMwM1NaM1BYR01CJndpZGdldE5hbWU9c3Bfc2VhcmNoX3RoZW1hdGljX2J0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

soix
jaytor's avatar
jaytor
745 posts
 

There is no telling how good the inverter is in this unit. It could produce a ton of distortion and be way worse than your grid power. 

holmz's avatar
holmz
2,328 posts
 

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.

Alternatively one can get the DAC, Preamp, etc from some manufacturers as 12V battery powered.

(Not sure what a DDC is.)

it is probably cheaper to stick with what you have, and use the lithiums and inverters…
But starting from scratch, then if one wanted it, they could just go battery powered for the entire front end.

lalitk's avatar
lalitk
5,104 posts
 

@soix

I don’t believe in these battery power toys (sorry). Alternatively, I suggest that you read up on isolation transformer based power distributors. I am using one that powers my entire system including my integrated. Stable power and zero coloration. There are few out there, here are few for your reference,

https://equitech.com/home/

https://www.underwoodhifi.com/products/core-power-technologies-av

https://www.toruspower.com

rhg3
163 posts
 

@soix Nothing ventured, nothing gained. I think it's definitely worth a shot. If it doesn't provide any improvement, then you can always return it. Not sure how silent the "silent fan" is. If you decide to keep it, I'd avoid keeping it plugged in 24x7. Charging batteries to 100% diminishes their lifespan.

yyzsantabarbara
4,568 posts
 

Give Ric a call at EVS. He is doing something with batteries these days and posting on A'gon.

 

http://tweakaudio.com/EVS-2/Inverter_Power.html

 

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