Battery knowledge · Units and electrical basics
Load
Whatever draws current from the battery — a motor, an inverter, a resistor in a test. Loads are specified by current, power or resistance, and a battery’s behaviour depends on which of the three stays constant.
Example
Units and electrical basics: an example situation
10 A for 30 min transfers 5 Ah. At constant 3.6 V this is 18 Wh; varying voltage requires integration.
Read Load alongside Current in this context. The rate at which charge flows through the cell and its circuit, in amperes. Outside the cell it is carried by electrons; inside, by lithium ions moving through the electrolyte.
Use in Lemonergy
Design protocol or analysis tool
Replay a changing load
Replay applies an existing governed profile.
Equation or tool to use
- Dynamic profile
Replays selected power
Inputs & settings
- profileId
- passes
- scaleW
- Rest
Observes recovery
Inputs & settings
- s
This overview identifies the components to use. Follow the example in Lemonergy for their connections and settings.
Example. 40 kW at 400 V needs about 100 A before losses; at 350 V it needs about 114 A.
Observe. Current rises as voltage falls under fixed power.
The selected profile determines regeneration. This is not an independent road-load or motor-efficiency model.
Open Design → Protocol bench →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.
- The International System of Units (SI), 9th edition
Bureau International des Poids et Mesures · 2026
Topic background · Definitions of SI units and coherent derived units; 2026 revision.