Comparison

Epoch Li vs TBB Connection

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Epoch Li

Monitor your lithium-ion battery system in real-time via Bluetooth. View voltage, current, power, and internal resistance. Receive alerts for temperature, short circuits, and voltage deviations to extend battery life and enhance stability.

Highlights
  • Real-time voltage, current, power, and internal resistance display
  • Individual battery voltage and alarm status monitoring
  • Cell comparison and balancing display
  • Temperature and critical parameter warnings
  • Record of all warnings and protection events
Features
Read full description

Make sure you have the latest app version. Turn on your Bluetooth. Tap the icon to open the App. It will search for all Epoch batteries within the range of your Bluetooth device and provide a list. If all the batteries are not listed, move closer to the battery location and refresh the screen. Choose the battery you want to look at. The Epoch intelligent battery management system and the active equalizer are connected via Bluetooth to monitor the battery status, collect, store and process information during battery operation in real time, exchange information with external devices, and solve the safety, usability and usage of the lithium battery system The key issue of life is to extend the service life of the battery to a certain extent, and to enhance the stability of the battery pack to a certain extent. 1. Display real-time voltage, current, power, internal resistance and other parameter values, and display them in the form of instrument panels and numbers; 2. Display the real-time voltage and alarm status of all single batteries. If the reported parameters trigger the alarm value or protection value, an alarm will be prompted; 3. Each data comparison of the battery cell, the voltage difference. Maximum voltage cell Minimum voltage cell. And the display of cell balance 4. Cell temperature warning. Real-time alarm for over temperature, short circuit, over voltage, under voltage 5. Record the warnings that occur at each moment. 6. Record all battery protection times. Best Regards !

About

TBB Connection

Features
Read full description

This APP is designed for TBB products to: 1) help users know the device status and data in real time; 2) provide the latest firmware and configuration file; 3) provide wider usage for TBB products. Overall, this APP will be a great tool for you to use your TBB products. We hope you will always enjoy using TBB products.

Screenshots

Epoch Li4 screens
TBB Connection3 screens

Verdict

The call

Epoch Li and TBB Connection are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Epoch Li versus TBB Connection: the parameters behind the verdict, then further details
ParameterEpoch LiTBB Connection
PriceFreeFree
Rating2.6 (70 ratings) — better—
Positive reviews29.2% of reviews—
Number of ratings70 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size35 MB60 MB
Age rating17+17+
DeveloperEDG Sales International LLCTBB Power Co., Ltd

Bugs and requests

Epoch Li

Reported bugs

14 issues
  • Bluetooth does not auto-connect
  • Bluetooth signal frequently drops
  • App crashes frequently
  • App disconnects when minimized or switching apps
  • App does not remember previously connected devices
Show 9 more
  • App shows incorrect battery charge levels
  • App history tab is useless
  • App is not documented, data is unclear
  • App shows 0% or no data after recent updates
  • App does not always reflect true battery charge
  • App cannot see information from multiple batteries in series
  • App has backward animations and sloppy UI
  • App requires password for advanced settings without providing it
  • App disconnects and will not re-connect until app is killed and reopened

Requested features

10 requests
  • Filter Bluetooth devices by MAC address prefix
  • Implement BLE non-exclusive connection
  • Bring back old app features (time to charge/discharge)
  • Document app data and features
  • Provide password for advanced settings
Show 5 more
  • Allow saving of battery connections/names
  • Release old app as a separate option
  • Improve Bluetooth connection stability and range
  • Fix incorrect battery charge readings
  • Display data for multiple batteries in series correctly

TBB Connection

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Epoch Li

No in-app purchases

None

TBB Connection

No in-app purchases

Questions

Is Epoch Li free?
Epoch Li is free to download, with no in-app purchases.
Is TBB Connection free?
TBB Connection is free to download, with no in-app purchases.
Do Epoch Li or TBB Connection have ads?
Neither Epoch Li nor TBB Connection shows ads.
Which is updated more often, Epoch Li or TBB Connection?
Epoch Li ships an update every 3 weeks, and TBB Connection every 3 weeks. Most recently, Epoch Li was updated on October 24, 2026 and TBB Connection on October 25, 2026.

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