I have an axpert VM III 5KW from voltronic 

I would like to connect it to a felicity solar lithium battery ( LPBF 48200-M ) 

How can I connect it to the battery through BMS?  if someone tried it please give me how I can make the custom cable from the inverter's side ( I know how to make it from the battery side ) 

and which battery type should I use ?

8 hours ago, Taher Sylla said:

I have an axpert VM III 5KW from voltronic 

I would like to connect it to a felicity solar lithium battery ( LPBF 48200-M ) 

How can I connect it to the battery through BMS?  if someone tried it please give me how I can make the custom cable from the inverter's side ( I know how to make it from the battery side ) 

and which battery type should I use ?

@Steve87 paired a felicity solar battery  with a Deye via RS485 Pylontech protocol. This is promising for you as your VM3 also supports the RS485 Pylontech.

But we need to verify wether your battery  functionality matches that of the one Steve used. Do you have a RS485 port on  the battery? . Can you send a picture of the battery and also a closeup of the comm connectors.? 

4 hours ago, BritishRacingGreen said:

@Steve87 paired a felicity solar battery  with a Deye via RS485 Pylontech protocol. This is promising for you as your VM3 also supports the RS485 Pylontech.

But we need to verify wether your battery  functionality matches that of the one Steve used. Do you have a RS485 port on  the battery? . Can you send a picture of the battery and also a closeup of the comm connectors.? 

I did pair the battery with Growatt SPF 5000 es inverter, but I couldn't know how to pair it with voltronic VMIII inverters ( it does pair with VMIIII inverters ), so this is the main problem with voltronic, not knowing the RS pins and what protocol should be used with it ( Lib - PYL - WECO - LIC ).

2 minutes ago, Taher Sylla said:

it does pair with VMIIII inverters )

You mean VM 4 / VM IV? 

3 hours ago, BritishRacingGreen said:

You mean VM 4 / VM IV? 

Yup Vm4 or Iv

7 hours ago, BritishRacingGreen said:

@Steve87 paired a felicity solar battery  with a Deye via RS485 Pylontech protocol. This is promising for you as your VM3 also supports the RS485 Pylontech.

But we need to verify wether your battery  functionality matches that of the one Steve used. Do you have a RS485 port on  the battery? . Can you send a picture of the battery and also a closeup of the comm connectors.? 

I did pair the battery with Growatt SPF 5000 es inverter, but I couldn't know how to pair it with voltronic VMIII inverters ( it does pair with VMIIII inverters ), so this is the main problem with voltronic, not knowing the RS pins and what protocol should be used with it ( Lib - PYL - WECO - LIC ).

12 minutes ago, Taher Sylla said:

Yup Vm4 or Iv

I did pair the battery with Growatt SPF 5000 es inverter, but I couldn't know how to pair it with voltronic VMIII inverters ( it does pair with VMIIII inverters ), so this is the main problem with voltronic, not knowing the RS pins and what protocol should be used with it ( Lib - PYL - WECO - LIC ).

Ok, so the very same cable you used for VM4 should work on VM3, when menu options 5 is set to PYL. 

Yet you say it does not work on VM3? 

1 hour ago, BritishRacingGreen said:

Ok, so the very same cable you used for VM4 should work on VM3, when menu options 5 is set to PYL. 

Yet you say it does not work on VM3? 

I didn't try the same cable used for VM4 on the VM3 inverter because there is no diagram in the VM3 for the cable while there is a diagram for the cable in VM4 user manual, maybe it has something with the battery BMS not the inverter ? 

1 hour ago, Taher Sylla said:

I didn't try the same cable used for VM4 on the VM3 inverter because there is no diagram in the VM3 for the cable while there is a diagram for the cable in VM4 user manual, maybe it has something with the battery BMS not the inverter ? 

You quite right, the VM3 has no schematic for BMS pinout. 

But I assure you they both the same, VM3 and VM4 BMS pinouts. If I remember off the cuff its pin 3 and 5 (cannot remember which is A and B but the VM4 schematic will tell you) 

So the VM4 cable you can use on VM3 as is. 

 

Edited March 15, 20232 yr by BritishRacingGreen

19 hours ago, BritishRacingGreen said:

You quite right, the VM3 has no schematic for BMS pinout. 

But I assure you they both the same, VM3 and VM4 BMS pinouts. If I remember off the cuff its pin 3 and 5 (cannot remember which is A and B but the VM4 schematic will tell you) 

So the VM4 cable you can use on VM3 as is. 

 

Ok I will try The VM4 cable and tell you the result, thank you

On 2023/03/16 at 10:23 AM, Taher Sylla said:

Ok I will try The VM4 cable and tell you the result, thank you

Hi @Taher Sylla, did you eventually manage to establish communication between Axpert VM III 5000-48 and Felicity LPBF48200-M?

I want to consider pairing Axpert VM III 3000-24 and Felicity LPBF24200-M.

On 2023/03/14 at 10:57 PM, Taher Sylla said:

I have an axpert VM III 5KW from voltronic 

I would like to connect it to a felicity solar lithium battery ( LPBF 48200-M ) 

How can I connect it to the battery through BMS?  if someone tried it please give me how I can make the custom cable from the inverter's side ( I know how to make it from the battery side ) 

and which battery type should I use ?

Have a look at this Felicity BMS Communication Guide in the files section. 

Voltronic Power Inverters

1. Communication Cable Pinout: 5,6 (Battery, any port)->3,5 (Inverter, BMS port)
2. Setting steps on inverter: Setting->14->PYL
3. Sign of successful communication: Check the battery SOC on inverter

5 minutes ago, Kilowatt Power said:

Have a look at this Felicity BMS Communication Guide in the files section. 

Voltronic Power Inverters

1. Communication Cable Pinout: 5,6 (Battery, any port)->3,5 (Inverter, BMS port)
2. Setting steps on inverter: Setting->14->PYL
3. Sign of successful communication: Check the battery SOC on inverter

Felicity solar kinda don't know how to communicate their batteries with Voltronic Inverters, it doesn't work on PYL, but it did work on LIC, I tried it with Axpert VMIII 4Kw Twin and Axpert VM III 3Kw and worked great with no problems

23 minutes ago, Taher Sylla said:

Felicity solar kinda don't know how to communicate their batteries with Voltronic Inverters, it doesn't work on PYL, but it did work on LIC, I tried it with Axpert VMIII 4Kw Twin and Axpert VM III 3Kw and worked great with no problems

Glad you got the Axpert VM III to talk to the Felicity battery.

Just now, Kilowatt Power said:

Glad you got the Axpert VM III to talk to the Felicity battery.

Yup, I don't know why they keep saying it has to be PYL to everyone, Even their engineers in my country say it has to be PYL, and it still doesn't work xD

I didn't try it on the VM III 5Kw yet, but in the next week I will be connecting one LPBF48200 to a 5Kw inverter, it should work

Please help connect the Felicity solar 24 V battery to the Axpert VM 4 inverter

Edited December 16, 2024Dec 16 by Calin

hello everyone，attached is instruction file for communicate felicity battery and voltronic inverter，hope it is helpful

Felicity Battery use RS485 to communicate with Voltronic（1）.pdf

6 hours ago, Felicity-Angie said:

hello everyone，attached is instruction file for communicate felicity battery and voltronic inverter，hope it is helpful

Felicity Battery use RS485 to communicate with Voltronic（1）.pdf 394.71 kB · 1 download

What about alot of batteries keeps on having low charge current when connecting the BMS even if the battery is 30%, this happened to me on all models 48v and 24v, even after updating the BMS it works for a while then it is back to charging low current about 20a or 30a, but when putting it on user defined it works perfectly fine

 hello，in BMS mode，battery will adjust charge current according to the SOC to protect battery，which is normal phenomenon，pls dont be worry