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My second car tablet and i need help in power department

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  • My second car tablet and i need help in power department

    hello guys
    im planning my second android tablet project permanent install in my car now the first one i had problems with:
    1. Heat reaching upto 60C; i managed that with some fans, has anybody tried water cooling?! how was it
    2. Power; the tablet is hooked up to a usb charger from cars accessory power outlet
    the problem with it that when engine starter is on my accessory port loose power for a second or 2 which disrupts charging
    and caused 1 tablet to die on me so far
    and for that i thought of 2 solutions :
    1 is a delay relay, 2 is a capacitor
    what are your thoughts on that, and if there are any other solutions
    3. i managed also to fry tablets internal audio controler IC how i dont know hoping anyone has knowledge on how it got fried so i could fix a possible issue


    ** i don't want const. battery power it will destroy battery life after much earlier than its supposed to

    any suggestion also apprdeciated
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