Battery System Calculator

The foxBMS Battery System Calculator

Cell manufacturer A B C D E Requirements
Cell Shape Prismatic Prismatic Cylindrical Cylindrical Pouch
Cell type NCM/LTO 20Ah BEV4 NCM/Graphite 60Ah 18650 High-Energy Automotive NCA/Graphite 18650
High-Power Consumer NCA/Graphite
High-Power Automotive NCM/Graphite
Cell capacity (Ah) 20.00 60.00 3.00 1.80 25.90 Ah
(total, min)
Battery system minimum total capacity
Cell max voltage(v) 2.70 4.12 4.20 4.20 4.15 V (max) Battery system maximum total voltage
Cell nominal voltage(v) 2.30 3.75 3.60 3.60 3.60
Cell min voltage (V) 1.50 2.70 2.80 2.80 2.80 V (min) Battery system minimum total voltage
Cell weight (kg) 0.510 1.860 0.0485 0.0465 0.554 kg Battery system weight (not used for any computation)
Cell volume (L) 0.261 0.973 0.017 0.017 0.230
Cell internal DC resistance at Begining-of-Life at 25°C (mOhm) 1.00 0.80 40 30 2.00
Cell specific heat capacity (J/kg.K) 850 850 850 850 850
Cell price (€) 60.00 240.00 5.00 5.00 120.00
Cell max continuous current based on data from manufacturer (C-rate) 8 7 1 6 6 h Battery system average discharge time used for design based on discharge time
Cell max continuous current based on data from manufacturer (A) A (continuous) Battery system maximum continuous current for design based on maximum continuous current
Cell min continuous power based on manufacturer data (W) kW Battery system maximum continuous power for design based on maximum continuous power
Cell energy (Wh)
Cell gravimetric energy density (Wh/kg)
Cell volumetric energy density (Wh/L)
Cell gravimetric power density (W/kg)
Cell volumetric power density (W/L)
Cell continuous current defined by engineer by chosen cooling system (C-rate)
Cell number in parallel defined by engineer (n)
Cell min number in series defined by engineer (n)
Design by rated capacity A B C D E
Cell min number in parallel (n)
Design by rated capacity A B C D E
Cell max number in series (n)
Cell min number in series (n)
Battery system min voltage (V)
Battery system nom voltage (V)
Battery system max voltage (V)
Battery system total number of cells (n)
Battery system total capacity (Ah)
Battery system total energy (Wh) (V)
Design by continuous current value A B C D E
Cell continuous current based on data from manufacturer (A)
Cell continuous current based on decision from engineer (A)
Cell min number in parallel based on manufacturer data (n)
Cell min number in parallel based on engineer data (n)
Design by continuous power value A B C D E
Battery system maximum required current at discharged voltage (A)
Cell maximum required current at discharged voltage (A)
Design by thermal condition A B C D E
Cell dissipated power at max continuous current (W)
Battery system total dissipated power at max continuous current (W)
Temperature elevation when no cooling is applied at continuous current (K)
Cell dissipated power at average discharge time (W)
Battery system total dissipated power at average discharge time (W)
Temperature elevation when no cooling is applied at average discharge time (K)
Design by thermal condition A B C D E
Cell Shape Prismatic Prismatic Cylindrical Cylindrical Pouch
Battery system total number of cells in parallel (n)
Battery system total numer of cells in series (n)
Battery system total number of cells (n)
Battery system total capacity (Ah)
Battery system max voltage (V)
Battery system nominal voltage (V)
Battery system min voltage (V)
Battery system total energy (Wh)
Battery system min power based on manufacturer data (W)
Battery system min power based on engineer decision (W)
Battery system cell weight (kg)
Battery system cell volume (L)
Temperature elevation when no cooling is applied at continuous current (K)
Battery system cell costs (€)