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Monitor multiple Bluetooth-enabled battery management systems from your iPhone. View detailed pack voltage, cell voltages, current, power, state of charge, and temperature. Build custom battery groups and visualize charging activity.
✓Connect to multiple BMS devices
✓Detailed pack and cell diagnostics
✓Build custom parallel/series battery groups
✓Visualize charging and discharging
✓Apple Watch companion preview
✓Supports JiKong and JBD/Xiaoxiang hardware
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What's New in MultiBMS
1.0.14
August 27, 2026
Apple Watch reliability Recording from your wrist is solid now. Start a run, swipe between screens, stop it - everything stays where you put it. Stop means stop. Ending a run on any screen ends it everywhere. On your phone Press record and the screen goes straight to the live dyno panel instead of leaving you to scroll for it. Also fixed a rare crash when a battery reported a bad temperature reading. You may see a few old empty recordings from before this update. Those are safe to delete.
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FAQ
What is MultiBMS?
MultiBMS is a utility app that connects to Bluetooth-enabled battery management systems (BMS) to provide a unified view of your battery data. It allows you to monitor pack voltage, cell voltages, current, power, state of charge, and temperature for multiple batteries simultaneously.
Does MultiBMS have ads?
No, MultiBMS does not contain any advertising. The app is designed to provide a clean and uninterrupted user experience for monitoring your battery systems.
What hardware does MultiBMS support?
MultiBMS includes support for multiple common BMS protocols, with JiKong and JBD/Xiaoxiang hardware being directly tested. Other protocols are marked BETA as verification is ongoing.
Can I group batteries with MultiBMS?
Yes, you can build custom parallel or series battery groups within MultiBMS. Group dashboards combine data from individual packs into a clear bank-level view while retaining access to each battery's details.
Is MultiBMS available on Apple Watch?
MultiBMS includes an Apple Watch companion preview that demonstrates features like Fleet, Cells, alert thresholds, and Race Mode. Live iPhone-to-Watch BMS synchronization is planned for a future update.
How much does MultiBMS cost?
MultiBMS is a paid application, priced at $0.99. This one-time purchase grants access to all current and future features without additional costs or subscriptions.
How often is MultiBMS updated?
The latest version of MultiBMS is 1.0.3, last updated on July 25, 2026. The app is actively developed with user feedback incorporated, suggesting regular updates to improve functionality and add features.
What is the age rating for MultiBMS?
MultiBMS has an age rating of 4+. This indicates that the content is generally suitable for all ages, with minimal or no objectionable content.