Life saver
Found out about this app through a group on facebook. Makes my projects and adventures so much smoother!
Excellent
Love this app perfect
$0.99
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About
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
1.0.15
September 17, 2026
Battery Storage is here — built for the moment you put your batteries away for winter or long-term storage. Put one pack or an entire bank into storage and MultiBMS captures a detailed baseline: state of charge, pack and cell voltages, temperatures, cycles, capacity, balancing, protections, firmware and more. Reconnect later to take another reading, compare any two snapshots side by side and spot cells that have drifted before they become a problem. MultiBMS now recognizes whether each reading was taken at rest, charging or discharging. It can flag unexpected charge loss, clearly show when a pack gained charge in storage, save a final reading when storage ends and export your full history to CSV. Bank-level controls make it easy to store remaining packs or bring the whole bank back into service. Also new: • Five full app skins: Bus Life, Off Grid, Marine, Hypercar and Gridline Racing • Four state-of-charge gauge styles: Precision, Segmented, Dual Ring and Original • A cleaner dashboard that fades the charging/discharging bar when the bank is idle • More accurate group current handling when a pack cannot report current • Clearer capacity, gauge-layout and storage-status messages • Reliability fixes and polish throughout Your batteries may sit still for months. Now you can know exactly how they held up.
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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.
