Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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Lead-Acid Batteries

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Voltage and Specific Gravity vs. State of Charge - SOC

Acid specific gravity and charge level in a lead acid battery:

Download and print Lead Acid Battery State of Charge chart

  • overcharged for specific gravity above 1.30
  • very low capacity for specific gravity ranging 1.13 - 1.15
  • discharged for specific gravity below 1.12

Battery Efficiency vs. Temperature

Temperature and lead-acid battery efficiency:

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Specific Gravity vs. Temperature

Specific gravity in a fully charged lead acid battery vs. temperature:

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Related Topics

• Miscellaneous

Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

Related Documents

12 Volt - Wire Gauge vs. Amps

Maximum current (amps) in a 12V electrical circuit vs. size (AWG) and length of wire.

Electrical Formulas

Commonly used electrical formulas like Ohms Law and more.

Electrical Resistance in Serial and Parallel Networks

Resistors in parallel and serial connections.

Electrical Series Circuits

Voltage and current in electrical series circuits.

Energy Storage Density

Energy density - by weight and volume - for some ways to store energy

Rechargeable Batteries - Properties and Life Calculator

Properties of rechargeable batteries and accumulators.

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