Blog - BMS Systems

BMS123 Smart installation and comments to overheating

When balancing my pack with BMS123, I noticed the boards get very hot (some +65°C). Is it OK?

Firstly, for large size battery banks and for cells that have become disbalanced, we strongly recommend avoiding long time balancing. The suggested solution is to charge the cells individually with a single

Winston LiFePO4 Part 2: 123BMS Install

FAQ: Getting access to the data from BMS/Bluetooth

Question:Can you give me the information about the access data for the BMS communication protocol? I wish to access the data from the BMS in raw format. Do not worry I am a programmer.

Answer:The BMS using standard wireless Bluetooth technology witha proprietary communication proto

BMS123 Smart Support for CANBus

Question:Will BMS123 Smart send out signals to my inverter as needed? (E.g. CAN open high and CAN open low.)

No.The BMS123 Smart does not support CANBus itself. The reason is that the BMS itself is a low power device. The operation of the CAN bus requires continued drain from the batteries,

GWL CPM vs. BMS123 – pros and cons

Although making „a better BMS123“ was not our intention (our CPM is simply a different product), we respond to your questions regarding a comparison between the two.

Anyway, the +/– are yet going to change as we have big development plans with our CPM! Stay tuned.

(Cell Performance Monitor)

Too small "+" hole on the BMS123 Smart board

If the positive (+) hole on the cell module is too small, you can make this hole bigger, the boards are designed to be drilled bigger if needed.

Make sure to remove the drilling dust afterwards to prevent short circuits or other unintended behaviour.

A good way of doing this is indicated on photo.

Placing the terminal connectors and cell modules

Please be aware that your battery-pack contains a large amount of energy, which can be potentially dangerous. Use isolated spanners, to prevent any short circuits.

High inrush currents, causing arcing (sparks) and ultra-high electromagnetic levels, can easily damage electronic circuits.

We therefore strong

GWL/Power: Installing BMS123 Smart to 4 Winston Battery...

Quick instruction video how to install the BMS123 Smart with the LFP (LYP) cells. Learn and see for yourself - simple and quick installation in just a few steps. See how to assemble the pack from 4 cells.

About Winston cells: Large capacity LiFePO4 prismatic cells. Thundersky – Winston Batt

GWL/Modular battery packs

The demonstration installation of the GWL/Modular packs. The goal of theGWL/Modular solutionis to offer components and accessories that allow for simple and fully modular architecture. Simply said: the GWL/Modular project will make the life of the DC solution providers simpler and easier.

Sneek peek: GWL/Modular battery packs

The demonstration installation of the GWL/Modular packs which are now being developed by our technicians as a follow-up product line of our newCPM (Cell Performance Monitor: to be introducedin May 2019!).

The goal of the GWL/Modular solution is to offer components and accessories that all