Lithium-ion Polymer Pouch Ce

Approved IEC CE UL Certificates

Lithium-ion Battery Pack

C1187190MP 3.5V 40Ah

High-Capacity Power in a Compact Pouch Format

40Ah Nominal Capacity

The cell provides a nominal capacity of 40,000mAh and a minimum capacity of 39,200mAh when tested at a 0.2C discharge rate.

Approximately 140Wh Nominal Energy

Based on its 3.5V nominal voltage and 40Ah capacity, the cell provides approximately 140Wh of nominal energy.

3C Continuous Discharge

The C1187190MP supports a continuous discharge current of up to 120A, making it suitable for devices with sustained high-power demand.

5C Burst Discharge

A maximum burst discharge current of 200A can be supported for up to 60 seconds under the specified operating conditions.

Low Internal Resistance

The initial AC internal resistance is specified at no more than 1.6mΩ when measured at 1kHz and approximately 50% SOC, helping reduce voltage drop and heat generation during high-current discharge.

Flat and Space-Efficient Structure

The pouch cell has a maximum thickness of 11.2mm, width of 88mm and length of 192mm, allowing engineers to create compact battery modules with a relatively large energy capacity.

Suitable for Customized Battery Systems

The cell can be configured into customized series and parallel battery modules according to the required voltage, capacity, discharge current and installation space.

Custom battery for your project

SPECIFICATION

No.	Item	Specification	Remarks
1	Battery Type	Rechargeable lithium-ion polymer pouch cell	Bare cell
2	Model	SDL-C1187190MP	—
3	Configuration	1S1P	Single cell
4	Nominal Capacity	40,000mAh	At 0.2C discharge
5	Minimum Capacity	39,200mAh	At 0.2C discharge
6	Nominal Voltage	3.5V	—
7	Nominal Energy	Approx. 140Wh	Calculated from 3.5V × 40Ah
8	Charge Voltage	4.20 ±0.02V	CC/CV charging
9	Standard Charge Current	0.2C / 8A	According to the nominal specification table
10	Rapid Charge Current	0.5C / 20A	—
11	Maximum Charge Current	0.5C / 20A	—
12	Standard Charging Time	Approx. 6 hours	Reference value
13	Rapid Charging Time	Approx. 3 hours	Reference value
14	Continuous Discharge Current	3C / 120A	Maximum specified continuous current
15	Burst Discharge Current	5C / 200A	Maximum 60 seconds
16	Discharge Cut-off Voltage	2.5V	Per cell
17	Initial Internal Resistance	≤1.6mΩ	AC 1kHz, approximately 50% SOC
18	Charging Temperature	0°C to 45°C	—
19	Discharging Temperature	0°C to 45°C	—
20	Cell Weight	Approx. 410g	—
21	Maximum Dimensions	11.2 × 88 × 192mm	Thickness × width × length
22	Short-Term Storage Temperature	0°C to 35°C	Less than one month
23	Long-Term Storage Temperature	10°C to 25°C	More than one month
24	Ex-factory State of Charge	At least 25% SOC	OCV not lower than 3.5V

Characteristics

Electrochemical performance characteristics

Test Item	Performance Requirement	Test Condition
Standard Discharge Capacity	≥39,200mAh	8A discharge to 2.5V at 25 ±5°C after standard charge
Cycle Life	≥300 cycles	Remaining capacity ≥31,360mAh
End-of-Life Capacity	≥80% of initial capacity	Tested after 300 cycles
Initial Internal Resistance	≤1.6mΩ	AC 1kHz at approximately 50% SOC
28-Day Storage Capacity	≥33,320mAh	Stored for 28 days at 25°C
Storage Capacity Retention	≥85%	Based on initial capacity at 25°C
Shipment SOC	≥25%	OCV ≥3.5V