Multiple BMS brands. One clear view.

Stop checking four battery apps.
See the whole system.

Connect mixed Bluetooth battery systems, combine packs into real banks, and record battery data with speed and motion on iPhone and Apple Watch.

Download on the App StoreWatch a real recording
No account requiredNo subscriptionWorks locally
Real MultiBMS cell diagnostics screen
Real MultiBMS grouped battery dashboard
App support

Need help? You are talking to the builder.

Send the issue from this page. Include your BMS, phone, vehicle, or battery setup if you can. Real reports help me fix problems and add support for hardware people actually use.

Direct replyUnusual hardware welcomeFeature requests welcome
One connected system

Far more than a BMS reader.

Monitor every pack, understand every cell, create complete battery banks, and choose how live energy moves across your screen.

▦

Multi-pack dashboard

Voltage, current, power, charge state, capacity, temperature, cycles, and status across multiple connected packs.

⛓

Battery groups

Create parallel or series banks with combined totals while retaining full access to each member battery.

◉

Cell-level diagnostics

Minimum, maximum, delta, balancing state, weak-cell warnings, and multiple visual layouts.

⌁

Current-responsive modes

Energy Rail, Orbit, and Mist make charge and discharge direction instantly understandable.

◇

Actionable alerts

Set low pack voltage, low cell voltage, high temperature, and Watch alerts for each use case.

✦

Your look, your cockpit

Four included styles and a collection of optional skins for RV, marine, industrial, racing, and custom builds.

See the whole bank

Three packs charging.
One answer that matters.

Group batteries into a real bank and see the combined result without losing access to the individual packs underneath.

20 APack 1
+
20 APack 2
+
20 APack 3
=
60 ATotal charge
Genuine MultiBMS parallel battery group dashboard
See the group total first.Open the combined bank for total current, power, capacity, state of charge, and the individual packs underneath.GENUINE MULTIBMS GROUP SCREEN
Current approved Bus Life premium skin instrument dashboard
Real MultiBMS Skin Store showing Bus Life
Make the cockpit yours
PREMIUM SKIN · BUS LIFE

A dashboard with a point of view.

Bus Life is a full premium skin, not just a color swap. It reshapes MultiBMS into a warm, skoolie-inspired instrument panel while keeping live battery data and controls functional.

More premium skins are coming for different builds, vehicles, and battery setups.

REAL GOLF CART RECORDING
Recorded with MultiBMS

Watch a run happen.

This is a real screen recording from a golf cart test. MultiBMS captures speed, G-force, distance, voltage, current, power, temperature, and cell values together. Stop the run, open it, and review the results in the same app.

Live while movingWatch speed, state of charge, current, power, G-force, distance, and cell delta update together.
Saved automaticallyEach run keeps its duration, top speed, battery draw, distance, energy, and cell results.
Every cell recordedReview the lowest cell and maximum cell delta after the load is over.
Playback and scrubbingPlay the timeline or drag to the exact moment you want to inspect.
MultiBMS Ride Profile settings showing speed, distance, G-force, laps, BMS temperature and cell health
LIVE SPEED
42.6MPH
TOP 47.8
G-FORCE · LIVE
ACCEL 0.82BRAKE 0.61
RACE · LAP 03
1:42.8
BEST1:41.2
LAP 021:44.1
LAP 011:47.5
63%PACK
VOLTAGE76.4 V
POWER7.2 kW
TEMP36° C
CELL Δ18 mV
Ride & Race profiles

Build the dashboard for the way you move.

Create profiles for e-bikes, scooters, ATVs, karts, boats, or custom machines. Choose the battery, Watch screens, sensors, lap controls, and safety thresholds that matter.

✓
GPS speed and top speedLive speed and session maximum.
✓
Distance and efficiencyTrip distance beside battery use.
✓
G-forceAcceleration, braking, and cornering.
✓
LapsWatch controls and per-lap telemetry.
✓
Battery healthVoltage, power, temperature, and cells.
✓
Configurable WatchShow only the screens you need.
Designed for real systems

Proof, not promises.

Real MultiBMS screens from a live two-pack JBD/Xiaoxiang installation.

Two live battery packs with 14 cell voltage bars
Every pack. Every cell.Compare connected packs and spot cell delta at a glance.
Ride Profiles for e-bike, scooter and ATV
Reusable Ride ProfilesSave the exact Watch and sensor setup for each vehicle or activity.
MultiBMS settings with charge effect, theme, groups and alerts
Modes, themes, groups, alertsMake MultiBMS fit the system instead of working around the app.
Cell voltage list and five minute history
Deep diagnosticsSee balancing, outliers, capacity, cycles, temperatures, and live history.
Parallel battery group dashboard
Bank-level intelligenceUnderstand the whole group while keeping every pack one tap away.
Configurable Ride Profile dashboard metrics
A performance computerSpeed, distance, G-force, laps, temperature, cell health, and alerts.
Supported Bluetooth hardware

Your batteries. One cockpit.

MultiBMS recognizes supported BMS protocols and clearly distinguishes directly tested families from beta support that can vary by model and firmware.

JiKong / JK-BMS · TestedJBD / Xiaoxiang · TestedDaly Smart BMS · BetaANT BMS · Beta

Brand names are used only to identify compatible hardware. MultiBMS is independent and is not affiliated with, certified by, sponsored by, or endorsed by any BMS manufacturer. All trademarks belong to their respective owners.

Help shape the Android version

Android beta testers wanted.

I’m looking for a small group of people with different phones, vehicles, batteries, and BMS hardware. You don’t need to be technical. Clear feedback about what works and what feels confusing is just as useful.

Android Watch support is planned
Real hardware is especially helpful. Tell me what BMS and Android phone you use after joining.No marketing list. Your address is used only for beta access and project updates.Direct line to the builder. Every signup and suggestion reaches me.

Join the Android beta

Enter the Google Account email you use for Google Play. The request is sent from this page.

No email app opens. Your address is used only for beta access and project updates.

All your batteries. Every ride.

One app for builders,
riders, racers, and real systems.

No account. No advertising. No subscription. Live Bluetooth battery monitoring works offline.

Download on the App StoreCheck compatibility