Name: 72VOLT 30/45AH LITHIUM ION BATTERY
SKU: 1971
Availability: InStock

🔋 Battery Specification — 72V 30Ah Lithium-Ion (For Electric Scooter)

Type: Rechargeable Lithium-Ion Battery Pack (Li-ion)
Nominal Voltage: 72 V
Nominal Capacity: 30 Ah
Energy: 2160 Wh (2.16 kWh)
Chemistry: Lithium Nickel Manganese Cobalt Oxide (Li-NMC / NCM) or Lithium Iron Phosphate (LiFePO4)

(Your size requirement: length ≥ 23 cm, width ≥ 15 cm, height ≥ 36 cm)

Dimension	Value
Length (L)	≥ 23 cm
Width (W)	≥ 15 cm
Height (H)	≥ 36 cm
Weight (approx.)	10–14 kg (depends on cell type & design)
Case Material	ABS / PC Plastic with flame retardant

Specification	Value
Nominal Current	30–60 A continuous
Max Discharge Current	60–90 A peak
Charging Voltage	84.0 ± 0.2 V (for 72 V pack)
Charging Current	0.2–0.5 C (6–15 A recommended)
BMS Protection	Yes (Overcharge, Over-discharge, Overcurrent, Short circuit)
Cycle Life	800–2000 cycles (cell dependent)
Operating Temp. – Charge	0 °C to 45 °C
Operating Temp. – Discharge	-20 °C to 60 °C
Storage Temp.	-10 °C to 35 °C

To make 72 V nominal:

72 V nominal requires ~20S configuration
- 20 cells in series (S) → ~72 V nominal (20 × 3.6 V)
For 30 Ah capacity, typical cell capacity ranges from 3 Ah to 6 Ah
Example configurations:
- 20S6P with 5 Ah cells → 30 Ah
- 20S5P with 6 Ah cells → 30 Ah

(This means 20 in series × 5 or 6 in parallel = ~100–120 individual 18650/21700 cells)

Must include:

📌 Choosing Cell Chemistry

Chemistry	Pros	Cons
Li-NMC (NCM)	High energy density → lighter, more compact	Slightly lower cycle life
LiFePO4	Very long cycle life & excellent safety	Larger & heavier (may increase size)

Chemistry	Approx Size
Li-NMC	~24 × 16 × 38 cm
LiFePO4	~25 × 17 × 39 cm

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