Orion BMS installed- battery amperage is highly variable

Just installed a 48v 400 aH LIFEPO4 bank and orion jr2 BMS. The DC current is highly variable. Screenshot below. There is some solar charging going on while the inverter is also powering some loads. I sent this image to the tech support of my Magnum inverter just to make sure this was normal. He said it was. Do any of you have similar "noisy" charts when monitoring current at a high sample rate?

I have since learned that this is normal due to the AC demands of the inverter

Ty for the update. It’s important to do so imo.
just curious. what BMS are you using on a 400ah bank. I want to do two 500ah (1000ah) lifepo banks to replace my two 435ah (870ah) lead acid banks.

I have been using and Orion BMS for years on two different inverters. My Outback Radian was so noisy on the DC with back RF that I could not rely on the Orion for current measurements. More recently it has been fine with my Outback Skybox and its SOC measurement is more accurate than the Skybox but it may be a calibration thing with the Skybox. The Orion is designed for EVs and should normally be pretty immune to EMF. I do get some jitter like the above picture, but most of it is on the voltage measurements. The Amphour measurements seem to coorelate to the readings I get from the Skybox.

Excellent. Thank you. I’ll research the Orion. In your experience you think two Orion’s would be the best plan of action ? One per 500ah bank?. I use midnite classics as charge controllers and magnum inverter 240v.

Also. Just to be clear. I read so many posts I clogged my brain and clearly missed the whole point of yours when I asked what BMS you are running when it was So obviously in your post! ?‍ Apologies making you repeat yourself.

ShawnJohn16 said:

Excellent. Thank you. I’ll research the Orion. In your experience you think two Orion’s would be the best plan of action ? One per 500ah bank?. I use midnite classics as charge controllers and magnum inverter 240v.

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I am a big fan of multiple paralleled LFP cells so I would parallel at the cell level and not at the pack level to save the cost of another BMS, especially with one as expensive as an Orion. If you are buying preconfigure packs you have no choice and that is where those multiple inexpensive BMSs work great. But when you have the individual cells there are a lot of advantages to having one pack. I am currently running Nissan Leaf modules in an 18P12S configuration.