feat(bat): set charging current 2.8a

lin

2025-08-01 633231e833e21d5b8b1c00cb15aedb62b3b78e8f

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.=[]
.[0]="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
.[1]="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
.[2]="ccccccccccccccccccccccc"
.[3]="dddddddddddddddddddddddddddddddddddddddddddddddddddd"