What-if comparison
See how system voltage and battery chemistry change your build.
System voltage: 12V vs 24V vs 48V
Same power over the same run — higher voltage means less current, thinner/cheaper cable.
| System | Current | Min wire | V-drop | Rel. copper |
|---|---|---|---|---|
| 12V | 125.0 A | 1/0 AWG | 2.54% | 100% |
| 24V | 62.5 A | 6 AWG | 2.56% | 25% |
| 48V | 31.3 A | 8 AWG | 1.01% | 16% |
Battery chemistry: LiFePO4 vs lead-acid
LiFePO4 (80% usable)
277.3 Ah
@ 12V · usable fraction 0.721
Lead-acid (50% usable)
443.7 Ah
@ 12V · usable fraction 0.451
What it costs to document the build
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