BMW i3 120 Ah charging curve & performance
2019, 2020, 2021, 2022
Last modified: Mar 24, 2026
Below is the charging curve for BMW i3 120 Ah, illustrating the charging speed at various battery levels. Additionally, graphs for range and time provide comprehensive details on charging performance.
Charging Highlights
Peak DC Speed
50 kW
Battery Capacity
42.2 kWh
Architecture
352 V
42.2 kWh — 42.2 kWh Lithium-ion
Charging Performance
Average charging speed 0 - 100%
9.2 kW
Average charging speed 10-100%
8.5 kW
Average charging speed 10-80%
30.4 kW
Advanced Metrics
Max C-Rate
1.09C
Average C-Rate
0.75C
Optimum charging area
4% – 58%
Time Analysis
Range Analysis
Key Insights
Optimum charging speed included 5 minutes loss
35.7 kW
Optimum charge stop time
34m 26s
Charging time 10-80%
52 m 21 s
Charging Speed Analysis
| SOC Range | Speed (kW) | Total Time | Energy Added |
|---|---|---|---|
| 0-100% | 9.2 kW | 4 h 6 m 51 s | 37.9 kWh |
| 10-100% | 8.5 kW | 4 h 0 m 27 s | 34.1 kWh |
| 10-80% | 30.4 kW | 52 m 21 s | 26.5 kWh |
Range Added Per Minute by Driving Cycle
| SOC Range | EPA | WLTP | 70 mph | 120 km/h |
|---|---|---|---|---|
| 0-100% | 1.6 km (1.0 mi) | 1.3 km (0.8 mi) | ? | ? |
| 10-100% | 1.5 km (0.9 mi) | 1.2 km (0.7 mi) | ? | ? |
| 10-80% | 5.3 km (3.3 mi) | 4.1 km (2.5 mi) | ? | ? |
Charging Curve Data (0–100% SOC)
| SOC | Speed | Time | Energy charged |
|---|---|---|---|
|
0 |
30 kW | 00:00:00 | 0 kWh |
|
1 |
32 kW | 00:00:47 | 0.4 kWh |
|
2 |
34 kW | 00:01:31 | 0.8 kWh |
|
3 |
36 kW | 00:02:13 | 1.1 kWh |
|
4 |
38 kW | 00:02:53 | 1.5 kWh |
|
5 |
40 kW | 00:03:30 | 1.9 kWh |
|
6 |
41 kW | 00:04:07 | 2.3 kWh |
|
7 |
42 kW | 00:04:42 | 2.7 kWh |
|
8 |
43 kW | 00:05:17 | 3.0 kWh |
|
9 |
44 kW | 00:05:50 | 3.4 kWh |
|
10 |
46 kW | 00:06:23 | 3.8 kWh |
|
11 |
46 kW | 00:06:55 | 4.2 kWh |
|
12 |
46 kW | 00:07:27 | 4.5 kWh |
|
13 |
46 kW | 00:07:59 | 4.9 kWh |
|
14 |
46 kW | 00:08:30 | 5.3 kWh |
|
15 |
46 kW | 00:09:02 | 5.7 kWh |
|
16 |
46 kW | 00:09:34 | 6.1 kWh |
|
17 |
46 kW | 00:10:06 | 6.4 kWh |
|
18 |
46 kW | 00:10:38 | 6.8 kWh |
|
19 |
46 kW | 00:11:10 | 7.2 kWh |
|
20 |
46 kW | 00:11:42 | 7.6 kWh |
|
21 |
46 kW | 00:12:14 | 8.0 kWh |
|
22 |
46 kW | 00:12:46 | 8.3 kWh |
|
23 |
46 kW | 00:13:18 | 8.7 kWh |
|
24 |
46 kW | 00:13:49 | 9.1 kWh |
|
25 |
46 kW | 00:14:21 | 9.5 kWh |
|
26 |
46 kW | 00:14:53 | 9.9 kWh |
|
27 |
46 kW | 00:15:25 | 10.2 kWh |
|
28 |
46 kW | 00:15:57 | 10.6 kWh |
|
29 |
46 kW | 00:16:29 | 11.0 kWh |
|
30 |
46 kW | 00:17:01 | 11.4 kWh |
|
31 |
46 kW | 00:17:33 | 11.7 kWh |
|
32 |
46 kW | 00:18:05 | 12.1 kWh |
|
33 |
46 kW | 00:18:36 | 12.5 kWh |
|
34 |
46 kW | 00:19:08 | 12.9 kWh |
|
35 |
46 kW | 00:19:40 | 13.3 kWh |
|
36 |
46 kW | 00:20:12 | 13.6 kWh |
|
37 |
46 kW | 00:20:44 | 14.0 kWh |
|
38 |
46 kW | 00:21:16 | 14.4 kWh |
|
39 |
46 kW | 00:21:48 | 14.8 kWh |
|
40 |
46 kW | 00:22:20 | 15.2 kWh |
|
41 |
46 kW | 00:22:52 | 15.5 kWh |
|
42 |
46 kW | 00:23:23 | 15.9 kWh |
|
43 |
46 kW | 00:23:55 | 16.3 kWh |
|
44 |
46 kW | 00:24:27 | 16.7 kWh |
|
45 |
46 kW | 00:24:59 | 17.1 kWh |
|
46 |
46 kW | 00:25:31 | 17.4 kWh |
|
47 |
46 kW | 00:26:03 | 17.8 kWh |
|
48 |
46 kW | 00:26:35 | 18.2 kWh |
|
49 |
46 kW | 00:27:07 | 18.6 kWh |
|
50 |
46 kW | 00:27:39 | 19.0 kWh |
|
51 |
45 kW | 00:28:11 | 19.3 kWh |
|
52 |
44 kW | 00:28:44 | 19.7 kWh |
|
53 |
43 kW | 00:29:18 | 20.1 kWh |
|
54 |
42 kW | 00:29:52 | 20.5 kWh |
|
55 |
41 kW | 00:30:27 | 20.8 kWh |
|
56 |
40 kW | 00:31:04 | 21.2 kWh |
|
57 |
39 kW | 00:31:41 | 21.6 kWh |
|
58 |
38 kW | 00:32:19 | 22.0 kWh |
|
59 |
37 kW | 00:32:58 | 22.4 kWh |
|
60 |
36 kW | 00:33:38 | 22.7 kWh |
|
61 |
35 kW | 00:34:20 | 23.1 kWh |
|
62 |
34 kW | 00:35:02 | 23.5 kWh |
|
63 |
33 kW | 00:35:46 | 23.9 kWh |
|
64 |
32 kW | 00:36:31 | 24.3 kWh |
|
65 |
30 kW | 00:37:18 | 24.6 kWh |
|
66 |
28 kW | 00:38:09 | 25.0 kWh |
|
67 |
26 kW | 00:39:03 | 25.4 kWh |
|
68 |
25 kW | 00:40:01 | 25.8 kWh |
|
69 |
23 kW | 00:41:02 | 26.2 kWh |
|
70 |
21 kW | 00:42:09 | 26.5 kWh |
|
71 |
20 kW | 00:43:20 | 26.9 kWh |
|
72 |
19 kW | 00:44:35 | 27.3 kWh |
|
73 |
18 kW | 00:45:55 | 27.7 kWh |
|
74 |
17 kW | 00:47:19 | 28.0 kWh |
|
75 |
15 kW | 00:48:50 | 28.4 kWh |
|
76 |
14 kW | 00:50:31 | 28.8 kWh |
|
77 |
13 kW | 00:52:20 | 29.2 kWh |
|
78 |
12 kW | 00:54:17 | 29.6 kWh |
|
79 |
11 kW | 00:56:25 | 29.9 kWh |
|
80 |
10 kW | 00:58:45 | 30.3 kWh |
|
81 |
9 kW | 01:01:19 | 30.7 kWh |
|
82 |
8 kW | 01:04:12 | 31.1 kWh |
|
83 |
7 kW | 01:07:27 | 31.5 kWh |
|
84 |
7 kW | 01:10:57 | 31.8 kWh |
|
85 |
6 kW | 01:14:43 | 32.2 kWh |
|
86 |
6 kW | 01:18:47 | 32.6 kWh |
|
87 |
5 kW | 01:23:14 | 33.0 kWh |
|
88 |
5 kW | 01:28:07 | 33.4 kWh |
|
89 |
4 kW | 01:33:33 | 33.7 kWh |
|
90 |
4 kW | 01:39:40 | 34.1 kWh |
|
91 |
3 kW | 01:46:39 | 34.5 kWh |
|
92 |
3 kW | 01:54:48 | 34.9 kWh |
|
93 |
3 kW | 02:02:57 | 35.2 kWh |
|
94 |
2 kW | 02:12:44 | 35.6 kWh |
|
95 |
2 kW | 02:24:58 | 36.0 kWh |
|
96 |
2 kW | 02:37:11 | 36.4 kWh |
|
97 |
1 kW | 02:53:29 | 36.8 kWh |
|
98 |
1 kW | 03:17:57 | 37.1 kWh |
|
99 |
1 kW | 03:42:24 | 37.5 kWh |
|
100 |
1 kW | 04:06:51 | 37.9 kWh |