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  1. #5901

    Default Re: How to make your own home solar. With Pictures + solar book

    Quote Originally Posted by TristanWS View Post
    gusto mong gumamit ng 4x16=64watts dc fans at 4x9=36watts dc led bulbs, total of 100watts dc... assuming na ginamit mo for 10hours = 1000 watt-hour lahat ang na-discharge mo sa battery ...ang tanong, paano mo ibabalik sa battery ang nagamit mo?

    100AH x 12V = 1200watt-hour = 1000/1200= 83.33% depth of discharge ...so hindi pwede gamitin ang 100AH battery
    200AH x 12V = 2400watt-hour = 1000/2400= 41.67% depth of discharge ... da dapat ay 200AH battery ang gamitin

    so kung 100W panel ang gagamitin na pang charge = 1000watt-hr / 100W = 10hrs ang charging time, so kung makulimlim ang panahon, baka hindi ma-full charge
    so kung 400W panel ang gagamitin na pang charge = 1000watt-hr / 400W = 2.5hrs lang ay naibalik mo na ang 1000 watt-hr na nagamit mo, at maski makulimlim ay sure ka na mafu-full charge ulit si battery.
    ano po yung maximum na depth of discharge

  2. #5902

    Default Re: How to make your own home solar. With Pictures + solar book

    Quote Originally Posted by josepepe View Post
    ano po yung maximum na depth of discharge
    based on personal experience, kung ang DOD ay maximum of 50% lang, umaabot ng more than 3 years ang buhay ng deep cycle battery ...hindi ka na lugi kung ang battery ay umabot ng 3 years pataas.

    "Depth of discharge, also known as DOD, shouldn’t be any more than 50% in most deep cycle batteries in order to get the best value for money. So if you have a 100 AH battery, consider the cut-off discharge depth being 50 AH." - from the internet
    Last edited by TristanWS; Yesterday at 13:51. Reason: 3 years

  3. #5903

    Default Re: How to make your own home solar. With Pictures + solar book

    Quote Originally Posted by TristanWS View Post
    based on personal experience, kung ang DOD ay maximum of 50% lang, umaabot ng more than 3 years ang buhay ng deep cycle battery ...hindi ka na lugi kung ang battery ay umabot ng 3 years pataas.

    "Depth of discharge, also known as DOD, shouldn’t be any more than 50% in most deep cycle batteries in order to get the best value for money. So if you have a 100 AH battery, consider the cut-off discharge depth being 50 AH." - from the internet
    Thank you po sa mga information

    - - - Updated - - -

    meron po ba na efficiency factor to consider regarding po sa time to charge a deep cycle battery

  4. #5904

    Default Re: How to make your own home solar. With Pictures + solar book

    Quote Originally Posted by josepepe View Post
    Thank you po sa mga information

    - - - Updated - - -

    meron po ba na efficiency factor to consider regarding po sa time to charge a deep cycle battery
    yes, so kung 400W panel ang gagamitin na pang charge = 1000watt-hr / 400W / 0.67 efficiency = 3.7hrs lang ay naibalik mo na ang 1000 watt-hr na nagamit mo, at maski makulimlim ay sure ka na mafu-full charge ulit si battery ...at depende rin sa solar charge controllers (PWM or MPPT) ang efficiency ng charging ...so, kung magandang klase ang charge controller, reliable at protected ang charging ng battery (hindi masisira ang battery).

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