Product Information

I. Core Parameters
Battery Model: LP2770134
Battery Type: Power Lithium-ion Battery (for Electric Vehicles)
Nominal Capacity: 20Ah
Nominal Voltage: 3.2V
Internal Resistance (AC 1kHz): ≤6mΩ
Battery Dimensions: Length 133.5±0.5 × Width 70±0.3 × Thickness 27.4±0.5 (mm)

Weight: 513±8g

II. Charge and Discharge Parameters
Charge Voltage: 3.65V±0.05V (Strictly prohibited to exceed 3.80V)
Maximum Charge Current: 3I₃ continuously (20A), 6I₃ within 10s
Discharge Cut-off Voltage: 2.0V (Strictly prohibited to drop below this voltage)

Maximum Discharge Current: 6I₃ continuously, 9I₃ within 30s

III. Temperature Parameters
Charge Temperature Range: 0℃~45℃ (Optimal: 15℃~35℃)
Discharge Temperature Range: -20℃~60℃ (Optimal: 15℃~35℃)

Storage Temperature: -40℃~45℃ for 1 month; -20℃~35℃ for 6 months (Storage condition: 30% SOC or voltage at 3.275V~3.304V)

IV. Key Performance Indicators
Cycle Life: ≥1500 cycles (Remaining capacity ≥80% of the nominal capacity)
State of Charge Retention: Capacity retention ≥90% of the nominal capacity after storage for 30 days at 25℃ / 7 days at 60℃
High-temperature Performance (60℃): Capacity retention ≥95% of the nominal capacity
Low-temperature Performance (-20℃): Capacity retention ≥50% of the nominal capacity
Safety Performance: No ignition or explosion shall occur in the short-circuit, overcharge, overdischarge, thermal chamber, nail penetration, extrusion and drop tests.

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