power case
[/ˈpaʊ.ər keɪs/]
nounpl: power cases
case de bateria / estojo carregador
1. A protective case or charging dock designed to hold a mobile device, smartwatch, or other electronic device and provide additional battery power through an integrated battery pack
I always keep my power case with me to ensure my phone stays charged throughout the day.
Eu sempre levo meu case de bateria comigo para garantir que meu telefone fique carregado durante o dia todo.
2. A protective container that also functions as a power bank or external charging device
The AirPods power case charges the earbuds when they're stored inside.
O case de bateria dos AirPods carrega os fones quando estão guardados dentro.
The term 'power case' is primarily used in tech and consumer electronics contexts in both the USA and Brazil. It became particularly popular with the introduction of Apple's AirPods Pro and similar wireless earbud products that include charging cases with integrated batteries. In Brazil, the term is often used interchangeably with 'case de bateria' or 'estojo carregador', reflecting the growing adoption of wireless technology and the need for portable charging solutions in urban areas.
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