Battery knowledge · Charging and discharging

Refresh charge

A charge given periodically to a battery in storage, to replace what self-discharge has taken before the voltage falls far enough to cause damage. Lead–acid typically needs one every three to six months and lithium-ion stored at 30–50 % every six to twelve months, while standard NiMH loses so much that it is simply recharged before use.

Also called
topping charge, storage recharge, freshening charge

Example

Charging and discharging: an example situation

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

Read Refresh charge alongside Lead–acid battery in this context. The oldest rechargeable chemistry, lead and lead dioxide electrodes in sulfuric acid, at 2 V per cell. Heavy and short-lived in deep cycling but cheap, recyclable and good at cold cranking, it still starts most cars and backs up most telecom sites.

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.