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01Pre-sales case · Smart BMSCASE-BMS-2026-001

Detailed case study

Move from “is the battery still good?”
to
the system knowing which cell
will fail first.

We rebuilt the BMS for our client's electric scooters — from hardware-only protection to smart battery lifecycle management. Risk cells are flagged before they fail, so after-sales shifts from reactive repair to proactive operations.

Book a 30-min consultationSee the system walkthrough
0mV
Voltage resolution
0%
Average SOH
0
Devices under management
Live telemetry#551055281869
SOC health
96%
+0.3% vs yesterday
Voltage
100V
Temp
25.7°C
Current
-20A
Power
5000W
Voltage waveform · live1ms
Max 4.21VMin 4.18VΔ 30mV
Smart alert14:00
Cell #07 abnormal warming trend
Dynamic power limit engaged automatically
Auto-balancing
Cloud operations
Lifecycle analysis
Project Overview

The client had the hardware,
but battery management was still“good enough to ship”

Before we started, the client already had battery hardware, controllers and vehicle telematics. But as the fleet scaled, the unobservable and unpredictable parts of the battery layer started compounding.

Smart electric delivery scooter scene
Real-world scenario

Delivery riders run two to three deep charge-discharge cycles a day — battery degradation runs far faster than for typical users.

Long-haul ridingHigh-frequency cyclingFood deliveryBattery swapSummer heat
What the client actually worried about

The real concern was never whether the batteryhad charge left.

— it waswhen one would suddenly drop voltage, swell, lose range, or fail outright.

Unstable range
Misleading state-of-charge
Uneven cell aging
Heat-related power drops
Before · already in place
  • 01Battery hardware
  • 02Controller system
  • 03Vehicle telematics
  • 04Basic protection logic
The worst incident

After a batch of vehicles ran sustained high loads through the summer, a localized group of cells started showing abnormal temperatures.

“The dangerous part wasn't the fault itself — it was that we had no idea which cells had already started misbehaving.”

— Client internal post-mortem
After-sales pressure
Battery returns86%
Remote complaints72%
No early signal94%
Post-hoc diagnosis only88%
After-sales kept falling behind — problems surfaced only after riders hit them.
Core Results

Six dimensions —
battery management, redefined

No longer "prevent the battery from breaking," but "understand when the battery starts to degrade."

Cell-state sampling
Millisecond
1ms sampling, real-time monitoring
Voltage resolution
1mV
Catches micro-variations
Thermal alerting
Real-time
Dynamic thresholds + trend detection
SOC estimation
Adaptive
Replaces static algorithms
Cell consistency
Auto-balanced
Cell delta < 30mV
Remote operations
Cloud-synced
OTA · fleet-wide management
/ 01 The real problems

It wasn't "no monitoring"
— the system simplydidn't know the battery was degrading

The client already had collection boards, temperature sensors, CAN bus and basic protection — but that's basic protection, not smart management.

P-01

Riders see "40% left"
but the scooter won't move

What the UI showsLooks like nearly half remaining
40%
What's actually usableVoltage sag under load + cell imbalance
11%
Cell imbalance
Voltage sag under load
Uneven aging
SOC estimation drift
P-02

The most dangerous problems
often come fromthe smallest cell anomaly

82
86
84
88
91
87
52
89
90
85
83
88
Effective capacity ceiling ↓
12 cells in series, voltage shown in mV

A classic "weakest-link" effect — one cell running a bit hot and dropping voltage faster drags down the entire pack.

P-03

Human after-sales can't keep up with fleet growth

Vehicle count doubles, after-sales capacity doesn't — faults end up diagnosed after the fact.
Q1Q2Q3Q4Q5Q6
Fleet size
Growing
After-sales capacity
Roughly flat
Capacity gap
Surfaces on the user side
/ 02 Reframing the project

We didn't build another protection system
because"protection ≠ management"

Before · the conventional approach

A hardware-protection view

  • Add alarm thresholds
  • Add protection logic
  • Add hardware detection
  • Cut power when something breaks
Plenty of detection, little state understanding
RE-DEFINE
After · how we reframed it

Smart battery lifecycle management

  • Millisecond cell sampling
    Detects 1mV shifts
  • Adaptive SOC / SOH scoring
    Dynamic correction model
  • Active balancing + thermal control
    Levels cell voltage spread
  • Cloud-based remote operations
    Faults caught before they happen
Understand when a battery starts to degrade — before it shows.
Battery management
Basic protection
Smart state management
Fault handling
Diagnose after a complaint
Early risk alerting
SOC estimation
Static algorithm
Adaptive SOC correction
After-sales mode
Reactive repair
Remote, proactive operations
Lifecycle
Unpredictable
Lifecycle analysis
System Architecture

Four stacked layers —
the smart BMS technical stack

From sensing at the bottom to applications at the top — every layer serves "understanding the battery."

ApplicationApplication
L04
Fleet console
Operations platform
Alert center
AlgorithmsAlgorithm
L03
SOC / SOH computation
Thermal control + balancing
Risk prediction · health scoring
DataData
L02
Cell database
Operational logs · state history
Fault · lifecycle models
SensingPerception
L01
Voltage & temperature sensors
CAN bus
Wireless link · BMS controller
Data flows bottom-upUPSTREAM
Real Constraints

The hard part isn't collecting data —
it'sstaying stable in real-world riding

  • Direct sun, high heat
  • Frequent hard acceleration
  • Back-to-back deep cycling
  • Sustained high loads
  • Variable riding styles
Iterative tuning
v1.0Temperature compensation model
v2.0Adaptive sampling rate
v3.0Cell balancing logic
v4.0SOC correction algorithm
Every correction trained on real road data.
/ 05 How the system works

Four core capability chains
stitched into a system thatactually understands batteries

01
STEP 01

Live cell-state sampling

Voltage modules, current sensing, temperature probes and CAN bus capture voltage, current, temperature and charge state in real time.

VoltageCurrentTemperatureCAN bus
1mVCatches micro-variations
02
STEP 02

Adaptive SOC / SOH scoring

Layer adaptive SOC estimation, SOH scoring, degradation models and load-induced voltage-sag analysis on top of static algorithms.

Adaptive SOCSOH scoringDegradation modelSag analysis
96.2%Average SOH
03
STEP 03

Active balancing and thermal control

Cell balancing, thermal strategy, dynamic power throttling and charge/discharge protection — keeping consistency, temperature stability and lifespan.

Cell balancingThermal controlPower throttlingProtection
<30mVCell voltage spread
04
STEP 04

Cloud-based remote operations

Wireless modules, cloud server and OTA data sync handle remote monitoring, fault alerting, health tracking and fleet-wide management.

Remote monitoringFault alertsOTAFleet management
1,284Devices online
A REAL MOMENT

Mid-summer, a rider's scooter running flat-out for hours

The system detected a cell group showing rising temperature / falling discharge efficiency / abnormal voltage swings. A traditional system would have waited until temperature crossed a hard limit before alerting. This time —

SOH scoringThermal risk analysisDynamic power limitCell balancing
“Riders used to find problems first. Now the system does.”
Temperature trend · 24hREAL-TIME
00:0006:0012:0018:0022:00
Current
22.7°C
Peak
32.6°C
Low
17.3°C
/ 06 System Walkthrough

Mini program + console —
operations as simple as reading a dashboard

Field operators run daily checks from the mini program; the operations team manages the entire fleet from the cloud dashboard.

Basic info

Connectivity, device ID, IMEI, SIM expiry and ICCID — visible on one screen.

Connectivity
Online
Mode
Monitoring
Device IMEI
861551055281869
Firmware
V1.0
See the interaction details in the demo project
Basic info mini program UI
WeChat Mini Program · live sync
Device edit

Push parameters, bind to brand codes

Push nominal voltage, capacity and charging parameters remotely, with sleep commands and per-device overrides.

Battery info edit screen
Alert severity

Color + count + time, in one view

Red flags high risk, green marks resolved — operators pinpoint problem vehicles at a glance.

Alert log screen
Device location

Coordinates + route + mileage

Combines positioning method, satellite count and timestamp, with route playback and daily mileage.

Device location screen
Web Console · fleet dashboard

Operations at scale
starts here

Fleet overview, temperature trends, alert center and remote operations — aggregated, filterable by fleet, model and rider.

Online vehicles
1,284
Today's alerts
7
Average SOH
96.2%
Mileage
284k km
Battery fleet management dashboard
Live sync · 5s
/ 07 Beyond electric scooters

The same capability extends to
every scenario "running on a battery"

Same core method: let the system understand the battery before users do, and before failure does.

Two- and three-wheel EVs
Delivery · shared
Delivery vans / logistics
Last-mile
Swap cabinets / depots
Consumer + B2B
Industrial energy storage
Plants · industrial parks
Residential / outdoor storage
PV pairing
Forklifts · robots
Industrial AGV
Methodology

Move from "is the battery usable" to "the system knows the battery's current state."

Wherever a scenario uses batteries, needs remote operations and has to make users a reliability promise, this smart BMS platform fits — only the algorithms need tuning for the cell chemistry and operating profile.

Reuse
90%+
Core code and platform
Adaptation cycle
2 to 4 weeks
New scenario rollout
Hardware coupling
Low
Multiple cell chemistries
/ 08 Results

No longer waiting "for the fault to happen" —
instead,managing the entire battery asset proactively

+85%
Fault prediction rate
Mostly reactive
Predicted in advance
-90%
High-risk vehicle exposure
Users find it first
System finds it first
x3.2
Vehicles per after-sales rep
Manual workflow
Cloud remote operations
+22%
Average battery lifespan
No active balancing
Active balancing + health management
From the client's perspective

We didn't just bolt on a monitoring system —
we moved the battery business from a hardware mindset to a data mindset

Quantifiable outcomes
Battery performance / after-sales efficiency / user satisfaction
Scalable operations
After-sales cost decoupled from fleet size
Brand trust
Users feel safer about the battery
Wavesteam · what we do

"We focus on shipping AI software solutions
that actually run in production."

No jargon, no demoware. We open up each critical business scenario with you and ship an AI loop the business can actually adopt.

Let's talk about your project

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