How Many 18650 Cells for a 48V 100Ah Battery?
A 48V 100Ah 18650 pack is 13S34P — about 442 cells using 3000mAh 18650s (46.8V nominal, 54.6V fully charged).
13S is the standard "48V" e-bike / powerwall config (48.1V nominal, 54.6V full).
| 18650 cell capacity | Configuration | Total cells | Pack capacity | Energy |
|---|---|---|---|---|
| 2500mAh (2.5Ah) | 13S40P | 520 | 100Ah | 4680Wh |
| 3000mAh (3Ah) | 13S34P | 442 | 102Ah | 4774Wh |
| 3500mAh (3.5Ah) | 13S29P | 377 | 101.5Ah | 4750Wh |
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Open the Battery Pack Calculator →48V 100Ah 18650 Pack FAQ
How many 18650 cells for a 48V 100Ah battery?
A 48V 100Ah 18650 pack is 13S34P — about 442 cells using 3000mAh 18650s (46.8V nominal, 54.6V fully charged).
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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