AntBMS comment on settings
- Thread starter the_tux
- Start date
I haven't received mine yet, but I will be setting it up so I did a bit of research. The first thing that stands out is the settings are programmed for 18650 li ion cells and not Lifepo4 cells! do not use these settings or you will kill your batteries!...
The reason cell balancing is not working is the start voltage is set for it to start at 3.65v (maybe be good for 18650 (actually pretty low as you may have changed it)) but not Lifepo4 batteries. 3.65v is actually the max charge for lifepo4 batteries.
Balancing will not start until the voltage goes above this setting. Look up the youtuber Vortecks, as he describes the settings and what they do. He Makes the VBMS app that communicates with the ANT bms.
Once you understand the settings, you should used the standard Lifep04 battery settings. You can also set to start balancing at lower voltage, in the case you only want to charge/discharge between 20-80% and align that with you charger/inverter. The nice thing about the ANT if you are using an AIO unit, its that it can disconnect the charger, but still discharge through a common port. (ie low voltage disconnect). There are some draw backs to the ANT BMS, I heard only max 50 amps charging current, but for my setup its more then enough
I have attached the EVE spec sheet (while I do not want to debate if they are real eve) that will guide you in the right direction for settings.
The reason cell balancing is not working is the start voltage is set for it to start at 3.65v (maybe be good for 18650 (actually pretty low as you may have changed it)) but not Lifepo4 batteries. 3.65v is actually the max charge for lifepo4 batteries.
Balancing will not start until the voltage goes above this setting. Look up the youtuber Vortecks, as he describes the settings and what they do. He Makes the VBMS app that communicates with the ANT bms.
Once you understand the settings, you should used the standard Lifep04 battery settings. You can also set to start balancing at lower voltage, in the case you only want to charge/discharge between 20-80% and align that with you charger/inverter. The nice thing about the ANT if you are using an AIO unit, its that it can disconnect the charger, but still discharge through a common port. (ie low voltage disconnect). There are some draw backs to the ANT BMS, I heard only max 50 amps charging current, but for my setup its more then enough
I have attached the EVE spec sheet (while I do not want to debate if they are real eve) that will guide you in the right direction for settings.
thanks Steve,
yes, I already did some modifications, such as max voltage, low voltage and some other ones. That's why I'm asking here if there's anything important missing or for some more recommendations. I'm having a look at the spec sheet but a lot does come down to personal experience.
yes, I already did some modifications, such as max voltage, low voltage and some other ones. That's why I'm asking here if there's anything important missing or for some more recommendations. I'm having a look at the spec sheet but a lot does come down to personal experience.
https://www.aliexpress.com/item/32997552090.html?spm=a2g0s.9042311.0.0.29a54c4d9AgxVd
The 400A+LCD model. This one comes with 6x12AWG wire on both sides, wouldn't use it for 400A but since they're pretty short it's probably fine for 200 or so
hmm.. my cell voltage seem to drift more and more. I had to run without a BMS for like 2 weeks or so after the initial balance to 3.65V in parallel. Do I have to repeat this process or will it balance out over time?
Considering the flat voltage curve of lifepo4 this difference is huge
Considering the flat voltage curve of lifepo4 this difference is huge
nevermind on the balance. After the last bigger discharge cycle it balanced out. Should have done that before asking.
My inverter is set as follows:
thanks a lot! As mentioned, in the meantime I switched to the lifepo4 profile of their official app so I should be set, for now, I'm sure that leaves space for tuning tough.
My inverter is set as follows:
thanks a lot! As mentioned, in the meantime I switched to the lifepo4 profile of their official app so I should be set, for now, I'm sure that leaves space for tuning tough.
What in
Which inverter are you running?
Ah nice. I am waiting for the exact same one on the slow boat from china. Should be here in about a week. Did you buy the wifi module for it? I have ordered the wifi module and am keen to know if it was worth it or not.
I didn't order the wifi module yet, thought about it though. Let me know how it works 
The bluetooth app works quite well but the range is kinda crap, it works in my van, however.
Maybe I'll hook up a raspberry pi to the USB port for monitoring at some point
The bluetooth app works quite well but the range is kinda crap, it works in my van, however.
Maybe I'll hook up a raspberry pi to the USB port for monitoring at some point
I was told there was no Bluetooth module. That’s why I ordered the wifi. Weird.
Mine is also for the van. Did you hack the power switch to allow the inverter to be switched off from a remote switch. I’m assuming your inverter is tucked away like mine will be.
Ironically you and I will have almost identical systems.
Mine is also for the van. Did you hack the power switch to allow the inverter to be switched off from a remote switch. I’m assuming your inverter is tucked away like mine will be.
Ironically you and I will have almost identical systems.
I don't think we're talking about the same one. Mine comes with a detachable display so I can put the remote unit, including switch and display, wherever I want using a standard RJ45 cable. That's exactly why I wanted this model. The main downside (for vans) is the high PV input (MPPT range 115-450V) I'm compensating here with 4x Panasonic HIT 340W with a VOC of 71.3 connected in series to have a VOC. of 285.2 or 238.8 VMP
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