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

@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

@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.

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.