# Epoch Li-ion

> Bluetooth-enabled lithium-ion battery monitoring and management system. (iPhone/iPad app by EDG Sales International LLC.)

- Source: https://appshunter.io/ios/app/epoch-li-ion/id1640434817 (this page in markdown: same URL + `.md`)
- Developer: [EDG Sales International LLC](https://appshunter.io/developer/1546168152)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 2.56/5 from 68 App Store ratings · 48 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 35 MB
- Languages: English
- Released: 2022-08-22
- Data updated: 2026-07-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/epoch-li-ion/id1640434817/reviews.md

## What is Epoch Li?

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 ！

## Key features

- 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

## Recent user reviews (10 of 48)

All indexed reviews: https://appshunter.io/ios/app/epoch-li-ion/id1640434817/reviews.md

### 1/5 — Annoying

*2026-03-12, version 1.3.5*

Yikes. Echoing what everyone else is saying on here - the batteries are great but the app is garbage. It doesn’t auto-connect to bluetooth and frequently drops signal, meaning you have to keep selecting the batteries in the device list over and over again. It’s never once remembered my devices. Definitely a software issue.

### 5/5 — Great Battery!!

*2026-03-07, version 1.3.4*

I’ve been extremely impressed with the Epoch 460Ah 12V LiFePO4 battery. The capacity, performance, and overall build quality are outstanding. For anyone needing serious off-grid power for an RV, van build, backup system, or mobile work setup, this battery delivers exactly what it promises.

The 460Ah capacity provides a massive amount of usable energy, and the LiFePO4 chemistry offers the long cycle life, stable voltage, and safety that lithium batteries are known for. One of the things I noticed immediately is how well the voltage holds under load. Even when running larger loads through an inverter, the battery maintains consistent output without the voltage sag you typically see with lead-acid batteries.

Another big advantage is the simplicity of having so much capacity in a single 12V battery. Instead of wiring multiple batteries in parallel, this one unit provides an enormous energy reserve while keeping the system clean and straightforward.

One of my favorite features is the Epoch iPhone app. It connects quickly via Bluetooth and gives you detailed real-time information about the battery, including state of charge, voltage, current, temperature, and remaining capacity. The interface is clean, responsive, and easy to understand. Being able to monitor the battery directly from my phone makes managing the system much easier, especially in a mobile setup.

Charging performance has also been excellent. The battery accepts charge quickly and efficiently, whether through a DC-DC charger, inverter charger, or generator setup.

Overall, the Epoch 460Ah battery is an absolute powerhouse. Between the massive capacity, reliable performance, and the excellent mobile app for monitoring, it’s one of the best lithium battery options available. I would absolutely purchase it again.

### 3/5 — It works but it needs attention.

*2025-09-03, version 1.3.2*

This app needs some attention. It should not show every Bluetooth device in existence; it should filter Epoch only signals. It should also employ a BLE non-exclusive connection, that way I don't have to go find my tablet and disconnect it if I want to view the battery stats on my phone. Thanks.

### 3/5 — kinda barebones

*2025-06-04*

Shows SOC as percentage and as voltage. Shows individual cells. Shows temperature probe readings. Shows amps in/out. What do I dislike? The bluetooth. It disconnects on a whim and then even requires that I manually disconnect if I want to see the battery from another device (tablet, phone) it's clunky. The battery itself works well.

### 1/5 — Horrible app

*2025-04-26, version 1.3*

This app is useless. I’ve had it and my battery for about a month. Seems like the app just got worse and worse. Starting today, Bluetooth won’t even connect even with my phone on the gauge that has the Bluetooth module in it.

### 1/5 — Awesome Battery, Trash App

*2025-03-25, version 1.2.8*

Probably one of the best values in lithium batteries out there, the product is soured by their absolute trash quality of an app. Gimmicky graphics, crashes all the time, and overall horrible UI/UX compared to other batteries. History tab is utterly useless as it default loads to the day you installed the battery, not the last couple hours like victron. 

Get your app together epoch,

### 3/5 — 460 V2

*2025-02-08, version 1.2.6*

I bought this great battery however the app is horrible. It says be within 10 meters to connect but I have to be within 3 ft or the device can’t find the battery. Another problem is it automatically turn off after a minute so when your looking at different screen you have to go back and turn it on again. I wish I would have bought the cheaper battery and put an eviction shunt and saved money. Also can’t update because it wants a password that’s supposedly not required. Horribly disappointing

### 2/5 — Please filter based on MAC address prefix

*2025-02-06, version 1.2.6*

The app is annoying in that it detects every Bluetooth device in our RV. This is silly, because Epoch could easily filter based on the MAC address prefix(es) they use in their batteries. Just a few lines of code would make this app far more usable. The glitzy graphics and animation are not necessary. Just present the information simply and reliably, please.

### 1/5 — This app is not documented anywhere

*2025-01-22, version 1.2.5*

I like my Epoch battery, but this app displays data that nowhere on earth is documented on what most of it means. This is absolutely infuriating.

### 1/5 — App is not documented

*2025-01-11*

This app is not documented at all. I cannot understand why my battery heater isn’t working. Nothing in the battery manual states how it works and this app has no explanation. Further, this link supplied in this app for my battery isn’t even the correct manual.  Epoch needs to re-evaluate this entire app and documents its use so I can get the most out of my $1500 battery and stop screwing around.

## Frequently asked questions about Epoch Li

### What does the Epoch Li-ion app do?

This app connects to Epoch intelligent battery systems via Bluetooth to monitor their status in real-time. It collects, stores, and processes operational data to help extend battery life and improve stability.

### What key features does the app offer?

The app displays real-time voltage, current, power, and internal resistance. It also shows the voltage and alarm status of individual batteries, provides cell comparisons, displays cell balancing, and warns about cell temperature and other critical parameters. It records all warnings and protection events.

### Is this app free to use?

Yes, the app is available for free. There are no in-app purchases or advertisements mentioned.

### What are the system requirements for this app?

To use the app, you need to have the latest version installed and ensure your Bluetooth is turned on. The app connects to Epoch intelligent battery management systems.

### How can this app help me with my battery?

The app provides detailed insights into your battery's performance, allowing you to identify potential issues early through real-time monitoring and alerts. This proactive approach can help extend the service life of your lithium battery system and enhance the stability of the battery pack.

## Version history (last 5 releases)

### 1.3.6 — 2026-04-10

Fix the abnormality of the password input box

### 1.3.5 — 2026-03-08

Optimize OTA firmware upgrade

### 1.3.4 — 2026-03-02

New password for OTA

### 1.3.3 — 2025-09-19

Update device connection speed

### 1.3.2 — 2025-05-15

Support BB 51105A model OTA

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## More apps by EDG Sales International LLC

- [18650BatteryStore.com](https://appshunter.io/ios/app/18650batterystorecom/id1546168150)
- [Epoch Pro](https://appshunter.io/ios/app/epoch-pro/id6463113720)
- [Epoch Cloud](https://appshunter.io/ios/app/epoch-cloud/id6759020476)

All apps by EDG Sales International LLC: https://appshunter.io/developer/1546168152

## Related topics

[epoch batteries](https://appshunter.io/ios/topics/epoch-batteries) · [epoch](https://appshunter.io/ios/topics/epoch) · [epoch pro](https://appshunter.io/ios/topics/epoch-pro) · [ionic lithium](https://appshunter.io/ios/topics/ionic-lithium)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-03.*