# Battery cell voltage monitor

Canonical URL: https://eloragrid.ai/symbols/battery-cell-voltage-monitor
Publisher: Elora Grid
Updated: 2026-10-27
Lookup label: CELL V
Drawing use: Schematic
Reference families: Manufacturer

A cell voltage monitor measures individual cells within a series-connected battery.

## In plain English

### What does Battery cell voltage monitor mean?

A cell voltage monitor measures individual cells within a series-connected battery.

### A simple example

A pack controller can compare cell voltages instead of seeing only the total pack voltage.

### What the drawings help you do

Show a separate measurement connection for each monitored cell in a series string. Adding the cell voltages gives a pack voltage, but it can conceal one cell being higher or lower than its neighbours. Label cell order so the measurement channels can be traced to the correct physical cells.

### Before using this reference

- Identify cell order and the monitor’s channel mapping.
- Separate sense wires from the main current path.
- Reference the selected monitor’s input connection requirements.

### Why not just measure the whole pack?

Two packs can have the same total voltage while their individual cells have different voltages. Cell measurements reveal those differences; a single pack measurement cannot identify which cell caused them.

### Terms

- Series string: Cells connected end to end so their voltages add.
- Sense wire: A connection intended to measure a condition rather than carry the main load current.

Concept diagram: Individual cell voltages → Cell-monitor channels → Cell readings to controller
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

- [Battery monitors and balancers](https://www.ti.com/product-category/battery-management-ics/battery-monitors-balancers/overview.html)


## What it represents

A cell voltage monitor measures individual cells within a series-connected battery.
A pack controller can compare cell voltages instead of seeing only the total pack voltage.
Show a separate measurement connection for each monitored cell in a series string. Adding the cell voltages gives a pack voltage, but it can conceal one cell being higher or lower than its neighbours. Label cell order so the measurement channels can be traced to the correct physical cells. This is original functional artwork, not a certified standard graphic or device pinout.

## How to read it

- Identify cell order and the monitor’s channel mapping.
- Separate sense wires from the main current path.
- Reference the selected monitor’s input connection requirements.
- A normal total pack voltage can hide differences between individual cells.

## Information to show or reference

- Identify cell order and the monitor’s channel mapping.
- Separate sense wires from the main current path.
- Reference the selected monitor’s input connection requirements.

## Important distinction

A normal total pack voltage can hide differences between individual cells.

## Facts

- Representation type: Original functional block; not a certified IEC or IEEE graphic
- Concept input: Individual cell voltages
- Concept output: Cell readings to controller

## Public references

- [Battery monitors and balancers](https://www.ti.com/product-category/battery-management-ics/battery-monitors-balancers/overview.html) — Texas Instruments. Battery monitors and balancers: public technical context for the named function. Product and compliance details remain with the publisher.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.