Lithium Polymer Battery Cell

Approved IEC CE UL Certificates

Lithium-ion Battery Pack

C10543125MP 3.5V 11500mAh

Compact Size with Reliable High-Current Output

11.5Ah Nominal Capacity

The cell provides a nominal capacity of 11,500mAh and a minimum capacity of 10,975mAh when tested at a 0.2C discharge rate.

Approximately 40.25Wh Energy

With a nominal voltage of 3.5V and a nominal capacity of 11.5Ah, the cell provides approximately 40.25Wh of nominal energy.

3C Continuous Discharge

The maximum specified continuous discharge current is 34.5A, supporting equipment with sustained medium-to-high current requirements.

5C Burst Discharge

The cell supports a maximum burst discharge current of 57.5A for up to 60 seconds, making it suitable for temporary peak loads such as motor startup, acceleration and actuator operation.

Low Initial Internal Resistance

Initial AC internal resistance is specified at no more than 2.4mΩ when measured at 1kHz and approximately 50% SOC.

Compact and Lightweight Design

The cell weighs approximately 125g and measures no more than 10.8 × 44 × 128mm, allowing it to fit into relatively narrow battery compartments.

0.5C Charging Capability

The maximum specified charging rate is 0.5C, equivalent to approximately 5.75A, with a reference charging time of approximately three hours.

Custom battery for your project

SPECIFICATION

No.	Item	Specification	Remarks
1	Battery Type	Rechargeable lithium-ion polymer pouch cell	Bare cell
2	Model	SDL-C10543125MP	—
3	Configuration	1S1P	Single cell
4	Nominal Capacity	11,500mAh	At 0.2C discharge
5	Minimum Capacity	10,975mAh	At 0.2C discharge
6	Nominal Voltage	3.5V	—
7	Nominal Energy	Approx. 40.25Wh	3.5V × 11.5Ah
8	Charge Voltage	4.20 ±0.02V	CC/CV charging
9	Standard Charge Current	0.2C / 2.3A	According to the main specification table
10	Rapid Charge Current	0.5C / approx. 5.8A	Rounded value in the specification
11	Maximum Charge Current	0.5C / 5.75A	—
12	Standard Charging Time	Approx. 6 hours	Reference value
13	Rapid Charging Time	Approx. 3 hours	Reference value
14	Continuous Discharge Current	3C / 34.5A	Maximum specified continuous current
15	Burst Discharge Current	5C / 57.5A	Maximum 60 seconds
16	Discharge Cut-off Voltage	2.5V	Per cell
17	Initial Internal Resistance	≤2.4mΩ	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. 125g	—
21	Maximum Dimensions	10.8 × 44 × 128mm	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 SOC	At least 25%	OCV not lower than 3.5V

Characteristics

Electrochemical performance characteristics

Test Item	Performance Requirement	Test Condition
Standard Discharge Capacity	≥10,975mAh	2.3A discharge to 2.5V at 25 ±5°C
Cycle Life	300 cycles	Tested at 0.5C charge and discharge
Capacity after 300 Cycles	≥8,780mAh	At least 80% of initial minimum capacity
Initial Internal Resistance	≤2.4mΩ	AC 1kHz at approximately 50% SOC
28-Day Storage Capacity	≥9,329mAh	Stored for 28 days at 25°C
Storage Capacity Retention	≥85%	Based on initial minimum capacity
Shipment SOC	≥25%	OCV ≥3.5V