Advanced Battery Charge Calculator

Professional battery charging time estimation with advanced features and C rating analysis

Basic Battery Calculator

Battery Type

Battery Capacity

Battery Voltage

Charge Current

C Rating

Current State of Charge

Charge Efficiency

Number of Batteries

Battery Configuration

Temperature

Battery Health

Charger Type

Maximum Safe C Rating

Constant Current Voltage

Constant Voltage Current

Cutoff Current

Thermal Coefficient

Aging Factor

Max Depth of Discharge

How does this calculator work?

Charge Time = Available Capacity ÷ Effective Charging Current
Available Capacity = Battery Capacity × (1 - Current SoC/100)
Effective Current = Charging Current × Efficiency × Temperature Factor × Health Factor
C Rating validates safe charging limits (Current ≤ Capacity × C Rating)
Temperature and aging factors affect the overall charging efficiency

Understanding C Rating for Safe Charging

C Rating indicates how fast a battery can be safely charged or discharged:

Example: A 50Ah battery with 2C rating can safely handle up to 100A charging current.

Battery Type Specifications & C Ratings