Cellmate: LiFePO4 BMS Monitor

Garage AI

About this app

Own batteries from more than one brand? Cellmate reads them all in one app. LiTime, JBD (Xiaoxiang, Overkill
Solar), JK and Daly smart batteries sit side by side on one screen, and you can combine several into one battery
group (say four batteries wired in parallel, each with its own BMS) and watch the whole bank as one.

Cellmate shows everything each battery's smart BMS knows, live over Bluetooth.

BATTERY GROUPS, ANY BRAND
• Mix brands freely: every supported battery shows on one dashboard
• Combine batteries into a group (parallel or series) and see bank totals: voltage, current, combined state of
charge and time to full or empty
• Name each battery and group your way

PER-CELL DETAIL
• Every cell voltage, live, with the spread between highest and lowest
• A cell-health check that accounts for charge and load, so a weak cell stands out early
• Balance status, temperatures, state of charge, current, power and cycle count
• Charge and discharge switches where your BMS allows them

THE WHOLE FLEET
• Monitor several batteries at the same time
• Pause a battery you are not using to free up the radio

HISTORY AND HEALTH
• Charts of voltage, current, state of charge and every cell over time
• Energy in and out, an event log and session history
• Capacity-fade trend and cell-divergence early warning

ALERTS THAT WORK WHILE YOU SLEEP
• Low charge, cell imbalance, temperature, cell over- or under-voltage and protection faults
• A charge-complete alert when a battery reaches the level you choose
• Background monitoring keeps reconnecting and alerting with the screen off

AT A GLANCE
• Home-screen widgets for the whole fleet or a single battery
• An ongoing notification with live state of charge

WORKS WITH
Bluetooth smart BMS units that speak the protocols used by LiTime, JBD (Xiaoxiang, Overkill Solar), JK (Jikong)
and Daly batteries, plus read-only support for RIDGID tool batteries (early, approximate cell readings).
Batteries without a Bluetooth BMS cannot be read.

PRIVATE BY DESIGN
No account, no ads, no analytics. Your battery data stays on your phone.

Cellmate is an independent app. It is not affiliated with or endorsed by LiTime, JBD, Jikong, Daly, RIDGID or any
other battery or BMS maker; their names are used only to describe compatibility.

What’s new

Cellmate 1.24.0, the first Google Play release. All your LiFePO4 batteries, any brand, on one screen: every cell live over Bluetooth, battery groups, history charts, alerts that work while your phone sleeps, and home-screen widgets.