Hello,

Before I purchase wires and cables for my project, I would like to confirm that my calculations are correct.

My plan is to build a 24V 100ah LifePO4 battery bank. It will be used to charge my power tool batteries, lawn mower, drills, etc.

Below is the Voltage Drop Index (VDI) formula that I am using. Got it from JF Legaspi on you tube and using 2 for the %voltage drop.

My Solar Panel specs: (I have 2 connected in series. Newpowa NPA100m-12I)

Pmax 100W

Vmp 19.06V

Imp 5.26A

Voc 21.82V

Isc 5.55A

LiFePO4 batteries to be purchased: 8x EVE LF105 3.2V 105Ah

VDI = 5.26A * 15ft. / 2 * (19.06v *2) = 1.035 --> 14 AWG

I = 200W / 25.6V = 7.8125

VDI = 7.8125 * 2ft. / 2 * 25.6V = 0.30516 --> 16 AWG

I = 2000 / 25.6V = 78.125

VDI = 78.125 * 2ft. / 2 * 25.6V = 3.051758 --> 10 AWG

Will the above wires be sufficient for my project?

Also, do I purchase stranded or solid copper wires?

thanks advance.

Before I purchase wires and cables for my project, I would like to confirm that my calculations are correct.

My plan is to build a 24V 100ah LifePO4 battery bank. It will be used to charge my power tool batteries, lawn mower, drills, etc.

Below is the Voltage Drop Index (VDI) formula that I am using. Got it from JF Legaspi on you tube and using 2 for the %voltage drop.

*VDI*= Current x Distance (ft.) / % Voltage drop x VoltageMy Solar Panel specs: (I have 2 connected in series. Newpowa NPA100m-12I)

Pmax 100W

Vmp 19.06V

Imp 5.26A

Voc 21.82V

Isc 5.55A

LiFePO4 batteries to be purchased: 8x EVE LF105 3.2V 105Ah

**Solar Panel (2 x 100W in series) to SCC wire**:VDI = 5.26A * 15ft. / 2 * (19.06v *2) = 1.035 --> 14 AWG

**SCC to 24V battery wire:**I = 200W / 25.6V = 7.8125

VDI = 7.8125 * 2ft. / 2 * 25.6V = 0.30516 --> 16 AWG

**Battery to Inverter wire:**Looking at getting a 2000W inverterI = 2000 / 25.6V = 78.125

VDI = 78.125 * 2ft. / 2 * 25.6V = 3.051758 --> 10 AWG

Will the above wires be sufficient for my project?

Also, do I purchase stranded or solid copper wires?

thanks advance.