48 Volt (13S) Battery Voltage Chart - Li-Ion Batteries

48 Volt (13S) Battery Voltage Chart - Li-Ion Batteries

Nominal voltage chart for 48V Li-Ion Ebike batteries showing the percentage.

13 Cells x 4.2 Volts/Cell = 54.6 Volts Fully Charged

Voltage (V)​
Percent (%)Voltage (V)Percent (%)Voltage (V)Percent (%)Voltage (V)Percent (%)
54.6​
100​
50.7​
75​
46.8​
50​
42.9​
25​
54.4​
99​
50.5​
74​
46.6​
49​
42.7​
24​
54.3​
98​
50.4​
73​
46.5​
48​
42.6​
23​
54.1​
97​
50.2​
72​
46.3​
47​
42.4​
22​
54.0​
96​
50.1​
71​
46.2​
46​
42.3​
21​
53.8​
95​
49.9​
70​
46.0​
45​
42.1​
20​
53.7​
94​
49.8​
69​
45.9​
44​
42.0​
19​
53.5​
93​
49.6​
68​
45.7​
43​
41.8​
18​
53.4​
92​
49.5​
67​
45.6​
42​
41.7​
17​
53.2​
91​
49.3​
66​
45.4​
41​
41.5​
16​
53.0​
90​
49.1​
65​
45.2​
40​
41.3​
15​
52.9​
89​
49.0​
64​
45.1​
39​
41.2​
14​
52.7​
88​
48.8​
63​
44.9​
38​
41.0​
13​
52.6​
87​
48.7​
62​
44.8​
37​
40.9​
12​
52.4​
86​
48.5​
61​
44.6​
36​
40.7​
11​
52.3​
85​
48.4​
60​
44.5​
35​
40.6​
10​
52.1​
84​
48.2​
59​
44.3​
34​
40.4​
9​
51.9​
83​
48.0​
58​
44.1​
33​
40.2​
8​
51.8​
82​
47.9​
57​
44.0​
32​
40.1​
7​
51.6​
81​
47.7​
56​
43.8​
31​
39.9​
6​
51.5​
80​
47.6​
55​
43.7​
30​
39.8​
5​
51.3​
79​
47.4​
54​
43.5​
29​
39.6​
4​
51.2​
78​
47.3​
53​
43.4​
28​
39.5​
3​
51.0​
77​
47.1​
52​
43.2​
27​
39.3​
2​
50.9​
76​
47.0​
51​
43.1​
26​
39.2​
1​

Assumptions: Your pack uses typical 18650 cells which charge to 4.2V and discharge to 3.0V.

Disclaimer: This chart is a theoretical guide only. No responsibility is taken by for damage occurring from incorrectly charging your battery. Please follow the directions in your user manual. Always charge your ebike battery in a fire proof area with a timer switch to avoid overcharging it. If your battery doesn't reach the 100% voltage listed above, DO NOT force it to go any higher than the voltage that it is charging to.
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