🔋 Battery Pack Builder Visualizer — Plan & Validate Your Series & Parallel Layouts
The Battery Pack Builder Visualizer is an interactive browser-based tool for DIY e-bike, e-scooter,
and energy project enthusiasts. Visualize your battery pack layout, plan weld points, nickel routing, and export
your design for documentation or build purposes.
🛠 What Is the Battery Pack Builder Visualizer?
This tool helps you plan the physical layout of cylindrical Li-ion battery packs before touching cells.
- Define Series (S) and Parallel (P) configurations
- Arrange cells in a rectangular or hexagonal grid
- Control spot weld points
- Show nickel strip routing for rows and columns
- Export layouts as SVG, PNG, or JSON
👤 Who Should Use This Tool?
- DIY e-bike and e-scooter builders
- Makers using 18650 / 21700 / 26650 cells
- Battery pack designers preparing a real weld plan
- Engineers needing a clear layout reference
- Beginners learning S & P visually
📋 Step-by-Step: How to Use the Tool
1. Set Series (S) and Parallel (P)
- Series (S) = number of voltage groups
- Parallel (P) = number of cells per group
Example: 13S4P for a 48V e-bike pack, 14S7P for a high-capacity pack. The grid updates instantly.
2. Adjust Cell Spacing and Radius
- Cell radius simulates different cell sizes
- Spacing plans for insulation, nickel width, and airflow gaps
3. Choose a Layout Style
- Rectangular grid – simple and easy to weld
- Hexagonal (staggered) – higher density, better packing efficiency
4. Understand Spot Weld Points
Small dots represent possible weld locations. They can be clicked manually or auto-generated.
- Connect Rows – horizontal series links
- Connect Columns – vertical parallel links
- Connect Diagonal – advanced or structural paths
5. Visualize Nickel Strip Routing
- Toggle strips on/off
- See routing across rows and columns
- Verify weld points align with strips
6. Export Your Layout
- SVG – for printing or CAD import
- PNG – quick reference
- JSON – for documentation, sharing, or future automation
⚠️ Why Use This Tool Before Building
1. Prevent Costly Mistakes
- Wasted materials
- Rework
- Increased internal resistance
2. Improve Safety
- Balance current paths
- Avoid overcrowded welds
- Reduce heat concentration
3. Learn Faster (Especially for Beginners)
- See how series chains are formed
- Understand parallel groups
- Observe how layouts affect structure
4. Works Anywhere, No Software Required
- No installation, account, or plugins needed
❌ What This Tool Does NOT Do
- Calculate voltage or capacity
- Simulate current, heat, or BMS behavior
- Replace real electrical engineering checks
💡 Final Thoughts
Battery pack building is about geometry, flow, and clarity.
The Visualizer bridges theory and reality, letting you see your pack before it exists.
Perfect for beginners and pros alike.
