A simple calculation in determining the number of cells or the number of parallel batteries. Given cell nominal V = 3.2, 6AH. Required 120AH battery bank at 12V DC. A four cell in series = 3.2 x 4 = 12.8V , 6AH Therefore; Number of parallel batteries = 120AH / 6AH = 20 parallel batteries. Number of cells = 20 x 4 = 80 pcs.
Hi Po pwedi bang mag gawa nang power bank Ang ganitong battery may 4 Po Kasi Ako na 32650 at nag decide nalang Ako na Gawin nalang itong power bank 1s4p May inorder na rin Ako na pang 1s 32650 .Tanong ko lang po may compatible ba na charging module na pang 3.2v? Kadalasan Kasi sa Nakita ko online ay pang 3.7v lang na pang 18650 .. pwedi ko ba tong magamit sa 3.2v na ginawa ko? Maraming salamat Po..
(for 12v 100ah computation) 1200wh = 1.2kwh 1 batt = 3.2v 6ah or 6000mah x 4 series connection to make it 12v 100ah /.8 dod = 125ah 125ah / 6ah =20.8 round up 21pcs batt parallel 21 pcs batt x 6ah= 126ah 126ah x .8dod=100.8ah 100.8ah x 12v = 1,209.6wh tatal batt= 4s21p 4 x 21 = 84 pcs 32650 or 32700 batt 84 pcs 32650 or 32700 batt for 100ah