# RenewSpark Tools — Battery Pack Design Tools

> Battery Pack Design Tools (iPhone/iPad app by Behrooz Falsafi.)

- Source: https://appshunter.io/ios/app/renewspark-tools/id6755784193 (this page in markdown: same URL + `.md`)
- Developer: [Behrooz Falsafi](https://appshunter.io/developer/1735642223)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 5 MB
- Languages: English
- Released: 2025-11-27
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/renewspark-tools/id6755784193/reviews.md

## What is RenewSpark Tools?

RenewSpark Tools helps you design safer, more accurate lithium-ion battery packs with clear S/P suggestions, runtime estimates, and real-world build guidance. This update adds dynamic recommendations tailored to power-tool rebuilders, e-bike and high-current builders, car-audio SPL systems, and DIY electronics users. Whether you're rebuilding packs or designing custom battery systems, RenewSpark Tools gives you conservative calculations, practical advice, and confidence in every build.


## Version history (last 3 releases)

### 1.2 — 2025-12-04

• Added Advanced Info section with tailored guidance for Power-Tool Rebuilders, High-Current/E-Bike/Car-Audio builders, and DIY low-current users
• Introduced dynamic persona-based calculations where relevant
• Improved Battery Capacity tool with clearer results and better input validation
• Updated UI with modern cell-type picker and design refinements
• Enhanced stability, fixed minor bugs, and improved overall user experience

### 1.1 — 2025-11-29

• Added Full Pack Designer (Simple Mode)
• Added BMS Troubleshooting Helper
• Added “Can this battery run my device?” checker
• Added Rebuild Parts List Generator
• Added Full Pack Cost Calculator
• Updated UI for cleaner, more consistent card layout
• Improved accuracy for nickel and connector recommendations

### 1.0 — 2025-11-27

No release notes.

## More apps by Behrooz Falsafi

- [Unshyme](https://appshunter.io/ios/app/unshyme/id6479581384)

All apps by Behrooz Falsafi: https://appshunter.io/developer/1735642223

## Related topics

[renewspark tools](https://appshunter.io/ios/topics/renewspark-tools)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*