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72VOLT 30/45AH LITHIUM ION BATTERY
Original price was: ₹19,400.00.₹16,200.00Current price is: ₹16,200.00.
🔋 Battery Specification — 72V 30Ah Lithium-Ion (For Electric Scooter)
📌 General Description
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Type: Rechargeable Lithium-Ion Battery Pack (Li-ion)
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Nominal Voltage: 72 V
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Nominal Capacity: 30 Ah
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Energy: 2160 Wh (2.16 kWh)
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Chemistry: Lithium Nickel Manganese Cobalt Oxide (Li-NMC / NCM) or Lithium Iron Phosphate (LiFePO4)
🧱 Physical Dimensions
(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 |
🔌 Electrical & Performance
| 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 |
🧩 Cell Configuration
To make 72 V nominal:
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72 V nominal requires ~20S configuration
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20 cells in series (S) → ~72 V nominal (20 × 3.6 V)
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For 30 Ah capacity, typical cell capacity ranges from 3 Ah to 6 Ah
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Example configurations:
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20S6P with 5 Ah cells → 30 Ah
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20S5P with 6 Ah cells → 30 Ah
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(This means 20 in series × 5 or 6 in parallel = ~100–120 individual 18650/21700 cells)
🧠 BMS (Battery Management System)
Must include:
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Cell balancing
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Over-charge protection
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Over-discharge protection
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Over-current/short circuit protection
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Temperature sensors
⚠️ Safety Notes
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Do not exceed recommended charge voltage (84 V)
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Use compatible charger (72 V Li-ion charger)
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Ensure proper cooling & vibration-resistant mounting for scooter use
📌 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) |
📐 Example Battery Size (Typical)
| Chemistry | Approx Size |
|---|---|
| Li-NMC | ~24 × 16 × 38 cm |
| LiFePO4 | ~25 × 17 × 39 cm |
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