7 minutes ago, Youda said:

you have to add ICC or some other monitoring that can read battery status over CANbus

ICC doesn't use the CANbus. There is some other plug on there that it uses, either RS485 or console if i recall. I suspect console.

11 minutes ago, Youda said:

recommended draw from a single brick is 25A

It's C/2, which is damn excellent compared to a lead acid. The BYD is similar, also 2kwh modules that you stack together, 35A limit per module. Your observation is correct: Running with just one module is a bit limiting (in both cases), though 1kw from a small battery is still not something to frown at. They can peak higher for short periods (typically 60 seconds). So really, 2 racks already makes a very usable battery.

Aaargh, okay ICC can't suck the info via CANbus... It's some other intelligent bus

Important is that:

- ICC and Pylon can speak to each other. 

- combining Axpert and lithium without ICC or an alternative is a struggle.

2 minutes ago, Youda said:

Aaargh, okay ICC can't suck the info via CANbus... It's some other intelligent bus

:-)

Just adding that for info. Too many people already plug one end into the can port and the other into the Axpert's RS232 port :-)

I suspect the reason for using that port is because, if I recall correctly, someone on some other forum figured out how to use that port, and since it is RS232 you don't need an expensive CAN or RS485 usb thing.

The reason why you'd rather use the other ports is because they can communicate over longer distances, or in some cases (boats, yachts) there might already be a canbus for everything else and it makes sense to just plug this thing in.

31 minutes ago, plonkster said:

I suspect console.

Correct. (Plonky the Cluedo Champion ) 

For a long time I continued to use the BMV in conjunction with the new Pylontechs and was happy with the results. The SOC indicated by the Pylon's LEDs was within a percent or two with what the BMV was indicating. Being able to read the Pylons BMS is however streets better.

12 hours ago, Chris Hobson said:

 I have set the battery low disconnect to 48.3V which is high but I want to protect my investment.

@Zimnismoboy34

Hi Chris. I'm just curious as to how you set 48.3V, is that via updated firmware perhaps as the Axperts have increments of 1V standard?

The pylontechs shut themselves down at 47.5V if anyone was wondering..

59 minutes ago, MiG said:

Hi Chris. I'm just curious as to how you set 48.3V, is that via updated firmware perhaps as the Axperts have increments of 1V standard?

The pylontechs shut themselves down at 47.5V if anyone was wondering..

Hi MiG

I am using the Australian firmware update (Lithium version) which allows program 29 to be set between 44V and 52V in 0.1V increments. Wonderful stuff we owe @Coulomb and @weber a huge debt of gratitude. Now that i have 4 modules I might just turn the alarm back on as I was always sailing close to the wind and the alarm would sound incessantly. The BMV alarm settings were closer the cutoff point so I would take notice of it.

 

3 hours ago, MiG said:

I'm just curious as to how you set 48.3V, is that via updated firmware perhaps as the Axperts have increments of 1V standard?

Actually, only some Axpert settings (I think only 12 and 13, to grid and back to battery) are 1 V granularity. It's really hard to change the granularity, because the settings info is packed into bit fields to be sent over a small number of CAN packets between master and slaves.

4 hours ago, Chris Hobson said:

Hi MiG

I am using the Australian firmware update (Lithium version) which allows program 29 to be set between 44V and 52V in 0.1V increments. Wonderful stuff we owe @Coulomb and @weber a huge debt of gratitude. Now that i have 4 modules I might just turn the alarm back on as I was always sailing close to the wind and the alarm would sound incessantly. The BMV alarm settings were closer the cutoff point so I would take notice of it.

 

Thanks for the replies Chris and Coulomb. Feels amazing to hear from 2 legends.. lol Thank you!

One quick thing, Is this lithium firmware compatible with the current 5kW models?

On 2018/07/25 at 11:32 PM, MiG said:

Thanks for the replies Chris and Coulomb. Feels amazing to hear from 2 legends.. lol Thank you!

One quick thing, Is this lithium firmware compatible with the current 5kW models?

Sadly, no, it is not. It is so far only available for the 4kW/5kVA (pf0.8) models (with single 145 V SCC). We're still waiting for someone to send us a firmware update file for a 5kW/5kVA (pf1) model (without the 64 V option), anonymously if you wish. I believe that would be version 74.XX.