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by rcy001
Sun Jan 03, 2021 3:28 pm
Forum: Technical BMW i3 Discussions
Topic: 12 V battery replacement suggestions needed
Replies: 29
Views: 10933

Re: 12 V battery replacement suggestions needed

Does the ‘increased battery discharge’ message only appear during startup? I am not the one driving it daily. Is it saved in some menu? I could not find it. Also, there is BMW’s Battery Guard as part of the Teleservices package which is a standard subscription according to my I3’s Connected Drive po...
by rcy001
Sun May 05, 2019 4:13 am
Forum: Technical BMW i3 Discussions
Topic: Cell balancing
Replies: 6
Views: 3864

Re: Cell balancing

I found some interesting information on https://www.newtis.info/tisv2/a/en/i01-i3-rex-hat/wiring-functional-info/power-train/high-voltage-battery-unit/1VnXGFKEDA : The SME regularly wakes up from its rest phases and compares all the cell voltages to one another. Since the adjustment of the cell volt...
by rcy001
Sat May 04, 2019 11:00 am
Forum: Technical BMW i3 Discussions
Topic: Cell balancing
Replies: 6
Views: 3864

Re: Cell balancing

Since your batt kappa is only 16.5 kWh, you could try to reinitialize the cells with ISTA. Then see if the low SOC voltage changes with higher kappa

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