Battery Soc Charge Count Increment Tool

Description

Apply an explicit signed current-time charge increment to an initial state of charge without clamping the result.

Battery state-of-charge and efficiency terms need explicit sign, capacity, cycle and time conventions. Charge efficiency differs from energy efficiency, and an arithmetic update is not necessarily physically bounded or a battery-health assessment.

Apply an explicit signed current-time charge increment to an initial state of charge without clamping the result.

When to use this tool

Use Battery Soc Charge Count Increment when checking one supplied battery charge, voltage or SOC contribution.

How to use the tool and how it works

Enter initialSoc, signedCurrentA, durationHours, capacityAh, efficiency. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read socIncrement, finalSoc. Use the output convention below.

Require initialSoc and efficiency in [0,1], nonnegative durationHours and positive capacityAh. socIncrement = signedCurrentA*durationHours*efficiency/capacityAh; finalSoc = initialSoc+socIncrement.^[1]

Input field	Meaning and units	Accepted input
initialSoc	Initial Soc	Required. Finite number; minimum 0; maximum 1.
signedCurrentA	Signed amperes; positive raises SOC under this convention.	Required. Finite number.
durationHours	Duration Hours Unit: h.	Required. Finite number; minimum 0.
capacityAh	Capacity Ah	Required. Finite number; strictly above 0.
efficiency	Dimensionless efficiency under the stated input/output quantity convention.	Required. Finite number; minimum 0; maximum 1.

Output field	Interpretation	Returned shape
socIncrement	Soc Increment	Required. Finite number.
finalSoc	Unclamped updated SOC; may be outside [0,1].	Required. Finite number.

json

{
  "input": {
    "initialSoc": 0.4,
    "signedCurrentA": 2,
    "durationHours": 1,
    "capacityAh": 10,
    "efficiency": 1
  },
  "output": {
    "socIncrement": 0.2,
    "finalSoc": 0.6000000000000001
  }
}

Limitations and assumptions

Positive current increases SOC and the same efficiency multiplier applies in either direction. Final SOC is not clamped to [0,1]; capacity ageing and actual battery protection are not modeled.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use a validated battery model, measurements and manufacturer constraints for operation, protection or health assessment.

References

Calculation and input contract: electrochemistry/battery-soc-charge-count-increment — tool.io

Similar or alternative tools

Battery Voltage Hysteresis One Soc Point
hysteresis = chargeVoltage-dischargeVoltage; midpoint is their mean; comparable checks the absolute SOC difference <= tolerance.
Battery Ocv Relaxation Gap
voltageChange = lateVoltage-earlyVoltage; meanSlope = voltageChange/elapsed.