Battery knowledge · Charging and discharging

Charge factor

The charge put in divided by the charge previously taken out, needed to bring a battery back to full. Lithium-ion needs barely more than 1.0 and lead–acid about 1.05–1.2, while nickel cells charged slowly at C/10 typically receive 1.4–1.6, which is why the classic NiMH overnight charge takes 14–16 hours.

Also called
charging factor, charge input ratio, recharge factor

Example

Charging and discharging: an example situation

The same CC–CV law can operate overnight or during a short depot stop.

Read Charge factor alongside Coulombic efficiency in this context. Charge delivered on discharge divided by charge put in on the previous charge. A healthy lithium-ion cell exceeds 99.9 %; the missing fraction is lithium lost to side reactions, so CE is an early and sensitive aging signal.

Use in Lemonergy

Separate regulation from availability.

This is a reference concept. No executable Lemonergy block has been verified for this term.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

  1. Lithium-ion battery fast charging: A review

    Anna Tomaszewska et al. · eTransportation · 2019

    Topic background · CC-CV and alternative charging protocols, transport limitations, degradation and thermal implications; results depend on cell and test conditions. Software behavior is documented separately in Lemonergy block references.