How Many 18650 Cells for a 48V Battery?
A 48V 18650 pack uses a 13S configuration — 13 cells in series, 46.8V nominal and 54.6V fully charged. Add cells in parallel to reach your target capacity.
13S is the standard "48V" e-bike / powerwall config (48.1V nominal, 54.6V full).
| 18650 cell capacity | Configuration |
|---|---|
| 2500mAh (2.5Ah) | 13S |
| 3000mAh (3Ah) | 13S |
| 3500mAh (3.5Ah) | 13S |
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Open the Battery Pack Calculator →48V 18650 Pack FAQ
How many 18650 cells for a 48V battery?
A 48V 18650 pack uses a 13S configuration — 13 cells in series, 46.8V nominal and 54.6V fully charged. Add cells in parallel to reach your target capacity.
What series configuration is a 48V pack?
48V uses 13 cells in series (13S), giving 46.8V nominal and 54.6V fully charged. 13S is the standard "48V" e-bike / powerwall config (48.1V nominal, 54.6V full).
Can I use 21700 cells instead of 18650?
Yes. The series count stays the same (13S sets the voltage); 21700 cells hold more capacity each, so you need fewer in parallel to hit the same Ah.
Do I need a BMS for this pack?
Yes — use a 13S BMS matched to your peak current. Our BMS Picker finds one for your exact configuration.
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