Which version of BMS or Battery Module do I have?

There are have been a few iterations of the BMS and Homegrid Battery Modules.  When troubleshooting, sometimes we need to know which version of hardware you have.

Here is how you tell the difference:

BMS GENERATION 1A

Features/ This unit includes only two green connectors and lacks stickers. It also features one set of dip switches. To program the BMS and accurately read the number of battery modules in the stack, EMS tools are required. The screen is black and white. Cable conduits and the BMS lid are attached with screws, not as a single piece of the case 

BMS GENERATION 1B

Features/ This unit includes a sticker and features more than just two green connectors; it has 2 sets of dip switches. Notably, it no longer requires the use of EMS tools for module configuration. The screen is also in black and white. Cable conduits and the BMS lid are attached with screws, not as a single piece of the case 

BMS GENERATION 1C

Features: This unit includes a sticker, but not only two green connectors, also two set of dip switches. Notably, it no longer requires the use of EMS tools for module configuration as well, and now are LCD screen is in color as well. Cable conduits and the BMS lid are attached with screws, not as a single piece of the case.

BMS GENERATION 2A 

Features/ This unit features three green connectors. The INV set of dip switches is now red. Additionally, there's an Imped set that includes a function to enable #6, improving connectivity for Wi-Fi and enhancing communication between modules. Cable conduits and the BMS lid are attached with screws, not as a single piece of the case. 

BMS GENERATION 2B

Features: This unit is identical to our Gen 2A, with the only difference being a cosmetic change. We integrated the cable conduit into the BMS frame, and the BMS lid now slides outwards, held in place by a single screw at the back."

BMS GENERATION 3

Features: This unit has the Skybox integrated directly into the BMS, with numerous new features added to the BMS. Notably, not all these features are in the INV set; please consult the diagram to view all the new features and switches.

In addition, there's a coax plug in the middle of the BMS, where you'll attach the antenna. It's labeled 'Wi-Fi port' underneath. The names on the Ethernet ports have changed as well, and with our new update, we can now perform remote monitoring and updates to the system. For these features to function, you must be on a 2.4 GHz signal."

BATTERY MODULE GENERATION 1A

Notice: This unit does not have a sticker on the right side, but it features a power button on the side of the plastic cover. Additionally, please be aware that these modules cannot be stacked with their successors.

BATTERY MODULE GENERATION 1B

Notice: They have 2 stickers on the right side of the module and the pins that hold the plastic cover down are gray 

Early BATTERY MODULE GENERATION 2

Notice:

• The earlier Gen2 modules no longer have large stickers on them.
• To identify these modules, check the serial numbers. After the 2nd "R," if you see "214" or "215," it indicates an earlier Gen2 module.

This information will be useful for distinguishing between different module versions.

Early BATTERY MODULE GENERATION 3, Late BATTERY MODULE GENERATION 2

Notice:

• Gen 2 and earlier Gen 3 modules will display "22" after the second "R" in the serial number until December.
• Gen 2 modules were officially discontinued, and production is now exclusively focused on Gen 3 modules.
• The first picture shows the earlier Gen 3 module, and the last one is a Gen 2 module.

This information helps in understanding the serial number variations and the production status of these modules.