APEXone

25/08/2026

APEXpulse 1.3 is out!

What started as a little project to get more insight into my own Marstek battery has grown quite a bit.

The latest releases add live charge and discharge efficiency, battery cycle count, mini trend graphs throughout the Overview, German language support, and a new Compatibility Scan that will hopefully help me bring APEXpulse to more Marstek battery models in the future.

I made a short video showing what’s new in versions 1.2 and 1.3.

https://youtube.com/shorts/SWajBiGs6S8?feature=share

A huge thank you to everyone who has downloaded APEXpulse, sent feedback, reported bugs, or contributed compatibility reports. Seeing people actually use something I built is still pretty damn cool.

And there’s plenty more to come. 🙂

APEXpulse 1.3 is here.This video takes a quick look at what's new...

12/05/2026

Most battery apps show percentages. APEXpulse shows what your batteries are actually doing.

Real-time telemetry, advanced diagnostics, historical insights, multi-battery support, scheduling, and direct battery control for Marstek Venus E systems.

Here’s a first look at APEXpulse in action:

https://youtube.com/shorts/bMYrT07UHgs

Professional real-time battery monitoring and control for Marstek Venus E systems.APEXPulse provides live telemetry, advanced diagnostics, cell-level monitor...

02/05/2026

I’ve been working on something in the background for a while.

It started from a practical problem: I couldn’t find a simple, reliable way to really see what my home battery was doing in detail.

So I built my own tool.

APEXpulse is an iOS app for monitoring Marstek batteries locally via Modbus TCP. It gives real-time insight into things like power, state of charge, and cell-level behavior.

No cloud dependency. Just direct access on your local network.

It’s already usable, but still evolving. I’m mainly interested in feedback from people who are working with similar setups.

More info: https://apexone.be/apexpulse