Recent posts

#1

Lithium / Re: My batteries have a gyrosc...

Last post by ClassicCrazy - April 26, 2024, 10:21:39 AM

do you know what kind of bms is in those batteries ?

#2

Lithium / Re: My batteries have a gyrosc...

Last post by Trukinbear - April 25, 2024, 02:27:49 PM

some early versions of jakiper had some kind of motion sensor - maybe to deter theft .
Maybe you are thinking of accelerometer like is in a lot of devices these days.
Otherwise no idea - you should contact manufacturer and ask them.
Larry

Nothing in any of the manuals, or literature and 'technical support' at Aolithium didn't understand my question - they can tell you how to open the crate however...

#3

System Design and Layout / Re: DCM9040 battery monitor

Last post by Barry Fields - April 25, 2024, 11:06:54 AM

I do appreciate the offer but I have no practical experience with communication protocols. I am an 74 year old analog hardwire kinda guy. My solar system presently has NO wifi/RS485 or any other digital interfaces. For me to come up to speed on that stuff,however much I would like to expand my knowledge, it would probably be the last thing I do (literally).

I do not want my tombstone to read "Just when he started to understand modbus".

#4

Lithium / Re: Anyone have these brand (a...

Last post by Trukinbear - April 25, 2024, 12:58:16 AM

I've had them (100Ah 51.2v rack mount) for a few days, and so far perform as expected

#5

Lithium / Re: My batteries have a gyrosc...

Last post by ClassicCrazy - April 25, 2024, 12:00:31 AM

some early versions of jakiper had some kind of motion sensor - maybe to deter theft .
Maybe you are thinking of accelerometer like is in a lot of devices these days.
Otherwise no idea - you should contact manufacturer and ask them.
Larry

#6

Lithium / My batteries have a gyroscope,...

Last post by Trukinbear - April 24, 2024, 11:33:30 PM

Just took delivery of my first 2 - 100Ah 51.2v rack mount LiFePo4 batteries from Aolithium. My system is up and running, but Aolithium's manual is quite incomplete. In the battery's menu for example there exists settings for setting the X, and Y axis of the gyroscope, but no mention in the manual. Gyroscope? My batteries have a gyro, why?

#7

System Design and Layout / Re: DCM9040 battery monitor

Last post by ClassicCrazy - April 24, 2024, 10:42:43 PM

I can send you a new pzem-017 with shunt  if you pay shipping - but it needs an esp8266 or esp32 , rs485 adapter ( unless you do a mod on it to eliminate rs485  ) , and of course you need to have wifi for it to connect to . But then you can monitor with a phone or computer anywhere in wifi range.
Larry

#8

System Design and Layout / Re: DCM9040 battery monitor

Last post by Barry Fields - April 24, 2024, 08:50:42 PM

Thanks Larry,
I needed a meter that could stay in my living room with the shunt mounted 10 ft away in the outside battery enclosure.

#9

System Design and Layout / Re: DCM9040 battery monitor

Last post by ClassicCrazy - April 24, 2024, 04:54:58 PM

I did look at the pzem-25. It appears to have a built in shunt. Is an external shunt a straightforward implementation?

? external shunt question above.
Thanks Barry

I am not understanding your question. Are you asking if pzem-025 has internal shunt - yes.I don't think it takes an external shunt  - just four connections  - 2 for 5 to 12v power to run meter and 2 for the negative power wire running through it.

#10

System Design and Layout / Re: DCM9040 battery monitor

Last post by Barry Fields - April 24, 2024, 12:14:30 PM

I did look at the pzem-25. It appears to have a built in shunt. Is an external shunt a straightforward implementation?

? external shunt question above.
Thanks Barry