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by alohart
Thu Jul 29, 2021 3:34 pm
Forum: Buying the BMW i3
Topic: Considering 2016 i3 REX GIGA w. tech package
Replies: 2
Views: 42

Re: Considering 2016 i3 REX GIGA w. tech package

The REx engine air filter cannot be replaced without replacing the entire engine air inlet because the filter is sealed inside and not designed to be replaced, so hopefully your repair estimate doesn't include this replacement. As the owner of a 2014 BEV whose battery pack has lost ~23% of its usabl...
by alohart
Thu Jul 29, 2021 3:25 pm
Forum: General / Main i3 Owners Forum
Topic: I took my 2014 i3 in for a battery capacity check and BMW added capacity to my battery
Replies: 5
Views: 340

Re: I took my 2014 i3 in for a battery capacity check and BMW added capacity to my battery

Please let us know how your usable capacity changes during the next few months. If it drops back down to near what it was, that would be evidence that BMW has rigged the capacity test to minimize its liability to replace degraded packs.
by alohart
Wed Jul 28, 2021 4:48 pm
Forum: Technical BMW i3 Discussions
Topic: Battery kappa
Replies: 5
Views: 105

Re: Battery kappa

Actually I do get less range charging on 120v. I have tested it leaving it on the charger for 3 days. When you write that you get less range, I assume you mean that the range prediction rather than the actual range might have been less. The range prediction varies for all sorts of reasons so isn't ...
by alohart
Wed Jul 28, 2021 2:04 pm
Forum: Technical BMW i3 Discussions
Topic: Battery kappa
Replies: 5
Views: 105

Re: Battery kappa

Mine is at 13.2. How bad is that and how bad does it have to be for bmw to replace the battery under warranty? The usable capacity is guaranteed to be at least 70% of the new usable capacity of 18.8 kWh which would be ~13.2 kWh. The usable capacity of your battery pack might be near that limit, but...
by alohart
Wed Jul 28, 2021 11:54 am
Forum: News and Main BMW i3 Forum Discussions
Topic: Charging after changing the 12V battery
Replies: 4
Views: 68

Re: Charging after changing the 12V battery

The 12V battery is brand new and I checked the charge before installing to be sure. It was over 12V so I think we are good there. 12.0 V is a very low charge level for an AGM battery. The voltage at full charge is ~12.8 V. Many "new" batteries have been sitting on a warehouse shelf for several mont...
by alohart
Tue Jul 27, 2021 12:57 pm
Forum: Technical BMW i3 Discussions
Topic: Battery kappa
Replies: 5
Views: 105

Re: Battery kappa

"Batt. Kapa. max" is the German abbreviation for the maximum usable battery pack capacity. It is only a calculated estimate of the capacity that can vary with temperature and other factors, so any single measurement should not be considered accurate. Multiple measurements over a period of time incre...
by alohart
Fri Jul 23, 2021 7:12 pm
Forum: General / Main i3 Owners Forum
Topic: Anyone having luck with new "My BMW" appon Android phone?
Replies: 8
Views: 182

Re: Anyone having luck with new "My BMW" appon Android phone?

eNate wrote:
Fri Jul 23, 2021 12:36 pm
Nice to see some long overdue attention being paid to the app!
At this rate, it might be fleshed out by the time AT&T discontinues 3G mobile data service and the app will become unusable for those of us with early i3's :x
by alohart
Tue Jul 20, 2021 10:47 am
Forum: General / Main i3 Owners Forum
Topic: I took my 2014 i3 in for a battery capacity check and BMW added capacity to my battery
Replies: 5
Views: 340

Re: I took my 2014 i3 in for a battery capacity check and BMW added capacity to my battery

So the software update increases how much you can charge your battery, from 66% to 80%? I don't think I've seen that laid out before. If so, earlier versions of the BMS might be buggy or too conservative. Another possibility is that the software update re-initialized the BMS data back to its defaul...
by alohart
Sat Jul 17, 2021 4:32 pm
Forum: General / Main i3 Owners Forum
Topic: 2014 /May BMWI3 12volt battery 7 years old no issue
Replies: 5
Views: 210

Re: 2014 /May BMWI3 12volt battery 7 years old no issue

The 12 V battery in our i3 manufactured on 1 August 2014 hasn't failed yet. I bought a replacement battery in April, 2019, but haven't needed it yet. Like your i3, ours hasn't been driven very much (less than 12k miles). Maybe that's the secret to a long 12 V battery life. I haven't found a good way...
by alohart
Fri Jul 16, 2021 6:04 pm
Forum: Buying the BMW i3
Topic: Checking Battery Health for Used i3
Replies: 7
Views: 3285

Re: Checking Battery Health for Used i3

My used 2015 i3 with REX showed 14.2 is that a good number? I'm so new to this and have no idea. Could someone provide some info? The Batt. Kapa. max value is a calculated estimate of the usable capacity. On our 2014 BEV, Batt. Kapa. max has varied more than 2 kWh up and down over a short period of...

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