Electrical Reference Charts
Quick technical tables, wire gauges, battery chemistry open-circuit voltages, and electronic schematic symbols.
AWG Wire Size Chart (Amps, Diameter, mm² & Resistance)
Complete American Wire Gauge (AWG) reference chart with conductor diameter in mm and inches, cross-sectional area, copper and aluminum resistance, and typical ampacity.
Battery Voltage & State of Charge (SoC) Reference Chart
Open-circuit voltage (OCV) vs. State of Charge (SoC) reference tables for 12V, 24V, and 48V Lead-Acid (Flooded/AGM) and Lithium (LiFePO4/Li-ion) battery chemistries.
Resistor Color Code Reference Chart (4, 5 & 6 Band)
Complete EIA resistor color coding table for 4-band, 5-band, and 6-band resistors with color digits, multipliers, tolerance percentages, and temperature coefficients.
Standard Electrical & Schematic Symbols Chart
Visual reference guide to standard ANSI and IEC schematic symbols for power sources, passive components, semiconductors, switches, grounding, and meters.