> Jeigu yra poreikis, vidun dedasi spec.baterija, tiesa, parduodama 
> atskirai :
> 
> https://www.ikea.lt/lt/catalog/products/40357535?_sgm_campaign=scn_10732919df1c000&_sgm_source=40357535&_sgm_action=click 

brac, manualu neapziurejau:

https://d37kg2ecsrm74.cloudfront.net/web/ikea4/pdfs/advice_and_instructions/557/AA-2042557-3_pub.pdf

Rated Power Consumption 39W
Battery playtime at 50% volume 8-10 Hours
Woofer 1 x 3.2"
Soft dome tweeter 1 x 1"
Amplifier output power 1x15W + 1x5W
Frequency range 57 - 20 kHz

https://d37kg2ecsrm74.cloudfront.net/web/ikea4/pdfs/advice_and_instructions/473/AA-2058473-1_pub.pdf

TECHNICAL DATA
Type: ICBL14.4-36-A1
Capacity: 2600mAh/37.4Wh
Input: DC 16.8V, 2.0A
Output: DC 14.4V, 3.1A
For indoor use only
Rechargeable Li-Ion battery cell inside.

Didesnej jau akumas nesideda:
https://www.ikea.lt/lt/catalog/products/80401466?_sgm_campaign=scn_10732919df1c000&_sgm_source=80401466&_sgm_action=click
40W / 2 x 4" + 1 x 1" / 2x15W + 1x12W / 48 - 20 kHz

Bet tokios tikrai nera kisenines, bet nera jau totaliai portable..
Ir akumas primena tas statybines radijas, kur suktuko akumas tinka :)