**Purpose**: When an APC battery backup's battery dies, you can manually replace the cells and 'refurbish' the battery.  The following diagram is how you rewire the cells.

!!! warning "Work in Progress"
    This document is still being written 

## Documentation / Pull Sequence
``` mermaid
graph TB
    Cell1[Cell 1] --> Cell2[Cell 2]
    Cell2 --> Cell3[Cell 3]
    Cell3 --> Fuse[30A Fuse]
    Fuse --> Cell4[Cell 4]
    Cell4 --> AndersonPos[Anderson Connector Positive]
    Cell1 --> AndersonNeg[Anderson Connector Negative]
    
    classDef battery fill:#f2f2f2,stroke:#000,stroke-width:2px;
    class Cell1,Cell2,Cell3,Cell4 battery;
```