Built for 750W-1500W e-bikes, e-scooters and light EVs. 104 grade-A high-energy-
density Li-ion 18650 cells in a 13S8P layout, 40A continuous /158A peak discharge, rugged metal enclosure with potting - factory-direct power for OEM programs
46.8V
NOMINAL (48V CLASS)
20.8Ah
TYPICAL CAPACITY
973Wh
TOTAL ENERGY
40A
CONTINUOUS / 158A PEAK
TECHNICAL SPECIFICATIONS
|
Parameter |
Specification |
|
Model |
Li-18650-13S8P-46.8V 20.8Ah |
|
Configuration |
13S8P (13 series × 8 parallel), 104 cells |
|
Cell |
Grade-A high-energy-density Li-ion (18650), 2600mAh, 3.65V nominal |
|
Nominal voltage |
46.8V (standard 48V system class) |
|
Charge cut-off voltage |
54.6V |
|
Discharge cut-off voltage |
36.4V |
|
Typical capacity |
20.8Ah |
|
Minimum capacity |
19.38Ah |
|
Nominal energy |
≈973 Wh (46.8V × 20.8Ah) / 998 Wh at 48V reference |
|
Continuous discharge current |
40A |
|
Peak discharge current |
158A |
|
Charge current |
10A max |
|
Cycle life |
≥500 cycles to 80% capacity at 0.2C, 25°C |
|
Charge temperature |
5°C ~ 45°C |
|
Discharge temperature |
−15°C ~ 60°C |
|
Storage temperature |
−20°C ~ 45°C (≤1 month); 0°C ~ 30°C (≤1 year) |
|
Impedance |
<80 mΩ |
|
Weight |
~8.6 kg ± 0.5 kg |
|
Dimensions (L×W×H) |
300 ± 1 × 90 ± 1 × 150 ± 1.5 mm |
|
Enclosure |
Metal case with potting compound |
|
Connector |
High-current discharge connector (same port, customer-selectable) |
|
Protection |
PCM/BMS: over-charge, over-discharge, over-current, short-circuit, NTC temperature, weak-current switch |
|
Certification |
CE, UL (component recognition), RoHS; UN38.3 test summary and MSDS on request |
Six Layers of Electronic Safeguarding
Simple Rules, Long Pack Life
Charge with a 54.6V 13S Li-ion charger at standard current and the pack returns to full capacity overnight. For long storage, keep the pack at 40-65% charge in a cool, dry place - the BMS handles everything in between.
CHARGE VOLTAGE
MAX CHARGE CURRENT
NOMINAL VOLTAGE
DISCHARGE CUT-OFF
FAQ
01.What is the actual voltage and capacity of this 48V 20.8Ah lithium battery pack?
The pack is a 13S8P build with 104 cells: 46.8V nominal (the standard 48V class), a typical capacity of 20.8Ah and a minimum of 19.38Ah. It charges to 54.6V and cuts off at 36.4V on discharge.
02.Is a 48V 20.8Ah battery pack the same as a 48V 20Ah pack?
Effectively yes. Both are normally 13S8P builds; 20.8Ah simply reflects 8 × 2600mAh cells, while "20Ah" often rounds the same configuration. Ask a supplier for the cell count and cell capacity rather than the headline Ah figure.
03.Which motor sizes will this 48V 20Ah lithium battery pack drive?
It suits 500W, 750W, 1000W and 1500W systems. With a 40A continuous discharge rating there is useful headroom for hill climbing. For sustained loads above 40A, ask about a higher-current BMS.
04.How long does it take to charge a 48V 20.8Ah battery pack?
Roughly 10–12 hours on a 2A charger and 2–3 hours on a 10A charger. The charge path is rated at 10A maximum, and the charger must be matched to the 54.6V cut-off voltage.
05.How far will this battery take an e-bike on one charge?
Expect 60–90 km with a 750W motor and 30–50 km with a 1500W motor, assuming a 75 kg rider and flat terrain. Weight, hills, assist level and temperature all shift the figure.
06. Is this 48V 20.8Ah lithium battery pack waterproof?
The pack is built into a sealed metal case filled with potting compound, giving strong resistance to dust, vibration and moisture. It is not submersible - do not immerse it in water.
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