BMS Monitor: LiFePO4 Battery
JBD & Xiaoxiang over Bluetooth
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Now in English and Spanish. Watch your LiFePO4 battery live: charge, voltage, current, temperature and alarms from your JBD or Xiaoxiang BMS, over Bluetooth.
BMS Monitor connects over Bluetooth to the BMS in your lithium battery and shows what it measures, live: charge, voltage, current, power, temperature and alarms. No account, no sign-up.
Made for LiFePO4 batteries in RVs, camper vans, boats and solar setups that have a JBD (Jiabaida) "Smart BMS", the Xiaoxiang family.
COMPATIBLE WITH
JBD / Xiaoxiang Bluetooth BMS, the hardware inside many batteries from Overkill Solar, ECO-WORTHY, Vatrer Power, LIONTRON, Epoch or Datou, and many DIY packs. BMS Monitor is not an official app of any of those brands. Other BMS families use different protocols, and this app can't read them.
FREE
• State of charge at a glance, with pack voltage, charge or discharge current and power in watts
• Today's maximum charge and discharge current
• Capacity: amp-hours remaining out of the nominal capacity
• Average temperature and each sensor's reading, colored by normal, high or dangerous
• Protection: charge and discharge MOSFETs, how many cells the BMS is balancing, and any active alarm (overvoltage, undervoltage, temperature, overcurrent, short circuit…)
Everything comes from what the BMS measures at its own terminals: no estimates.
WITH BMS MONITOR PRO
• Pack details: every cell's voltage, with the highest and lowest marked, red if any drops below 2.9 V, a bolt on the cells being balanced, and the high-low spread in mV
• Cycles and real health: the amp-hours your battery can actually hold, measured automatically when it reaches 100% and stops taking charge
• Charts of voltage, charge and discharge, and remaining capacity, by day, week, month or year
• BMS information: cells in series, sensors, configured nominal capacity, cycles and MOSFET status
• Station and remote modes: leave one phone next to the battery and watch the pack live from another, with a 6-character code (both phones with Pro)
• No ads
While the app is open, the screen stays on, so the phone acting as a station doesn't go to sleep.
LANGUAGES
English, Spanish (Spain) and Spanish (Latin America). The first time it follows your phone's language; change it in Settings → Language.
YOUR DATA
No account, email or password needed. Readings are processed on your phone, and chart history is stored only there. They only leave it if you turn on station mode: then they're published to Google Firebase under a random code, without your name or email, so the phone with that code can see them.
ADS
The free version shows a banner at the bottom and a full-screen ad when the app opens. Pro has no ads at all. Before ads are personalized you're asked for permission; if you decline, ads still show, but not personalized.
SUBSCRIPTION
BMS Monitor Pro is a monthly or yearly subscription; the app shows the price in your currency before you pay. It renews automatically unless you cancel at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://cdpoma.github.io/bms-monitor/support.html
Ratings & Reviews
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The developer, Gabriel Mico, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gabriel Mico
- Size
- 29.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- BMS Monitor Pro Anual $12.99
- BMS Monitor Pro Mensual $1.99
- BMS Monitor Pro $1.99
- Copyright
- © 2026 Gabriel Micó Victoria