When my battery goes down to around 20% on the information page it is saying the BMS status is Low voltage and stops discharging to the house, does anyone know of a setting that I may have wrong or if there is a setting on the BMS that I can change, it is a DIY battery with a pace bms.
BMS Low Voltage
- Thread starter johnch121
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MisterSandals
Participation Medalist
What are your current BMS settings?
Are you sure you want to discharge your batteries that low? There is dang little power in them at that point and LiFePO4 cells/batteries get finicky down there. Very little to gain, lots of problems possible.
If you discharge until BMS cuts off completely, do you have a way to charge A 48V to come alive?
Are you sure you want to discharge your batteries that low? There is dang little power in them at that point and LiFePO4 cells/batteries get finicky down there. Very little to gain, lots of problems possible.
If you discharge until BMS cuts off completely, do you have a way to charge A 48V to come alive?
These are the BMS settings, the only setting that is changed is the sleep vcell which is set at 2.9v I guess the battery has stopped discharging to protect the battery
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MisterSandals
Participation Medalist
Exactly, it’s working as you would want it to work.
I would dial back overvolt protection. 3.70V is too high. Set it to mirror your low voltage protect from 2.50V.
I would dial back overvolt protection. 3.70V is too high. Set it to mirror your low voltage protect from 2.50V.
I will certainly check it again but I think that was changed to a lower setting but not as low as 2.5v, Thank you for the advice, I will make sure it's set to 2.5v. Once again thank you for the advice
MisterSandals
Participation Medalist
No, sorry, I think your low voltage is backed away from 2.50V nicely. I meant to set you overvolt away (below 3.65V) the same way. 3.61V alarm, 3.63V disconnect, 3.60V release or thereabouts.
