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Li-lon Battery 18650 10.8V 3500mAh 3S1P Rechargeable Lithium Ion Battery Pack
10.8V 3.5Ah 18650 lithium-ion battery pack (3S1P) delivering 37.8Wh of stable energy with 500+ deep cycles. High-capacity, long-lasting, and customizable by A&S Power Battery for portable instruments, smart devices, and electronics.
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Parameters
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Common Applications
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Other Products
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Handling Precautions & Guidelines
Parameters
10.8V 3.5Ah 3S1P 18650 Lithium Ion Battery Pack
AS18650 is a rechargeable 18650 lithium-ion battery pack rated at 10.8V and 3.5Ah, with a total nominal energy of approximately 37.8Wh. This 3S1P configuration is designed for OEM applications that require a compact rechargeable battery pack with customized dimensions, battery terminals, connectors, wires and protection circuitry.
Need a customized 10.8V lithium-ion battery pack?
Send us your required voltage, capacity, dimensions, connector, discharge current or device requirements.
18650 10.8V 3500mAh 3S1P 37.8Wh Lithium Ion Battery Pack Product Parameters
| Parameter | Rating | Note |
|---|---|---|
| Battery Configuration | 3S1P | 3 cells in series, 1 cell in parallel |
| Capacity | Typical 3500mAh / Minimum 3350mAh | 25±5℃; Charge 0.2C; Discharge 0.2C |
| Nominal Voltage | 10.8V | Average nominal voltage |
| Nominal Energy | Approx. 37.8Wh | 10.8V × 3.5Ah |
| AC Impedance | ≤50mΩ / Cell; ≤300mΩ / Pack | Cell and finished battery pack specifications |
| Discharge End Voltage | 7.5V | Discharge cut-off voltage |
| Standard Charge Current | 700mA / 0.2C | Standard charge condition |
| Charge Voltage | 12.6V | Cut-off current ≤35mA |
| Charge Time | Approx. 6 h | Standard charge condition |
| Continuous Charge Current | 3500mA max. | Maximum continuous charge current |
| Continuous Discharge Current | 1750mA | Standard continuous discharge current |
| Max. Continuous Discharge Current | 11A | Maximum continuous discharge current |
| Weight | Approx. 170g | Finished battery pack |
| Dimensions | 20 × 58 × 73mm | Finished battery pack dimensions |
| Shipping Voltage | ≥11.5V | Shipment state |
| Operating Temperature | Charge 0~+45℃; Discharge -20~+60℃ | Operating temperature range |
| Storage Temperature | <1 month: -10~+45℃; <3 months: -10~+35℃; <6 months: -10~+30℃ |
Recommended storage temperature: 25±2℃ |
| Storage Humidity | <85% RH | Storage condition |
| Cycle Life | ≥500 cycles | Capacity retention ≥80% |
AS18650 10.8V 3.5Ah 37.8Wh Lithium-Ion Battery Pack
3S1P 18650 Battery Pack for OEM Applications
AS18650 is a rechargeable 10.8V 3500mAh lithium-ion battery pack using a 3S1P 18650 cell configuration. The pack provides approximately 37.8Wh of nominal energy and is designed for electronic equipment and OEM applications requiring a compact rechargeable battery solution.
The battery pack can be customized according to the electrical and mechanical requirements of the end device, including capacity, dimensions, battery terminals, wires, connectors and protection circuitry.
- 10.8V nominal voltage and 3500mAh typical capacity
- 3S1P 18650 cell configuration
- Approx. 37.8Wh nominal energy
- Typical capacity 3500mAh; minimum capacity 3350mAh
- Custom battery terminals, wires and connectors available
- Protection circuit / BMS options can be evaluated for applicable designs
- OEM engineering, prototype and production support
Dimensional Drawing of 18650 3S1P 10.8V 3500mAh Battery Pack
| Item | Pack Dimension |
|---|---|
| T | 20.0 mm max. |
| W | 58.0 mm max. |
| H | 73.0 mm max. |
| L | 100 ± 5mm (UL3239 16# AWG) |
| Connector | 39012025 (4.0) |
Applications
This rechargeable 10.8V lithium-ion battery configuration can be evaluated for portable and industrial electronic equipment where a compact 10.8V battery system and approximately 3.5Ah capacity are required. The final battery design should be matched to the electrical load, enclosure space, operating environment and applicable safety requirements.
Custom Battery Terminations, Pins, Tabs, Wires & Connectors
A&S Power lithium battery packs can be supplied with different types of terminations, including PC pins, tabs, solder tabs, leads, wires, cables and connectors. If the required termination is not shown in the standard options, our customer service and engineering teams can assist with a custom-made termination according to your battery pack specifications.
Any Plug & Mode
Custom Production
Customized wires, terminals, connectors, pins, tabs and cable assemblies are available according to the final battery pack design.
Contact Us
Battery Materials & Manufacturing Process
Custom Lithium-Ion Battery Pack Options
For the AS18650 10.8V 3500mAh 3S1P configuration, battery pack specifications can be evaluated and customized according to the electrical, mechanical and application requirements of the end device.
Voltage & Capacity
Battery voltage and capacity can be developed according to the required operating profile and available space.
Battery Dimensions
Pack dimensions can be designed around the enclosure and installation space of the end product.
Cell Configuration
Series and parallel configurations can be evaluated according to voltage, capacity and current requirements.
Wires & Connectors
Wire length, wire gauge, terminals and connectors can be customized according to the device interface.
Protection Circuit
Protection circuitry can be evaluated according to the electrical and safety requirements of the application.
Label & Packaging
Battery labels, markings and packaging can be developed according to OEM requirements.
Battery Protection Board & BMS Options
Protection Circuit Design for Custom Battery Packs
A protection board or BMS can be evaluated according to the final battery design and application requirements. The protection system may be configured around the required electrical characteristics, battery configuration and device operating conditions.
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Temperature monitoring where required
- Protection circuit customization according to the final battery design
The final protection functions and electrical parameters should be confirmed according to the selected cells, pack configuration and end-device requirements.
Personalized Production
Custom Battery Pack Manufacturing
We manufacture custom battery pack assemblies for electronic, industrial and OEM applications. Our engineering and manufacturing teams support battery development from specification review and prototype development through testing and mass production.
For the AS18650 10.8V 3500mAh 3S1P battery pack, customized capacity, dimensions, wires, connectors, terminals, protection circuitry, labels and packaging can be evaluated according to the final application.
Discuss Your Battery Project
OEM Lithium Battery Pack Engineering Process
Custom Battery Pack Engineering & OEM Manufacturing
A&S Power supports OEM rechargeable battery projects from initial specification review through engineering development, prototype production, testing and volume manufacturing. Our battery engineers can evaluate the electrical and mechanical requirements of your device before finalizing the battery pack design.
Electrical Design
Voltage, capacity, charge current, discharge current and battery configuration are evaluated according to application requirements.
Mechanical Design
Battery dimensions, enclosure space, terminals, wires and connector positions can be developed around the device structure.
Prototype Development
Engineering samples can be developed for fit, electrical and functional verification before production.
Testing
Battery performance and protection functions can be evaluated according to the agreed product specifications.
Mass Production
Approved battery designs can proceed to production according to agreed quality and manufacturing requirements.
OEM Support
Engineering and customer service teams provide support throughout the battery development and supply process.
Battery Quality Control & Compliance
Product Quality Control
A&S Power applies quality control procedures throughout battery cell selection, pack assembly, welding, wiring, protection circuit installation, testing and final inspection.
For this AS18650 10.8V 3500mAh battery pack, the published electrical and mechanical specifications should be confirmed against the final production configuration before mass production.
General Compliance Support
A&S Power provides rechargeable battery solutions with certification and compliance options for applicable models and markets.
* Certification availability depends on the final battery model, configuration and applicable market requirements.
Safety Handling and Lithium Battery Design
Lithium-ion battery packs should be designed, charged, transported, stored and used according to the applicable battery specifications and safety requirements.
The final battery system should be matched to the device's charging system, discharge load, operating temperature, enclosure and protection requirements. Do not use a battery pack outside its specified electrical or environmental limits.
For OEM projects, A&S Power can evaluate battery configuration, protection circuitry, charging requirements, terminals and mechanical installation conditions during the engineering stage.
Frequently Asked Questions
Can the 10.8V 3500mAh 3S1P battery pack be customized?
Yes. Capacity, dimensions, battery terminals, wires, connectors, labels, packaging and protection circuitry can be evaluated according to the requirements of the final application.
What does 3S1P mean for this 18650 battery pack?
3S1P means three 18650 cells are connected in series and one cell is used in each parallel group. The configuration provides a nominal voltage of 10.8V while maintaining the capacity of the selected cell.
What is the energy of the 10.8V 3500mAh battery pack?
The nominal energy is approximately 37.8Wh, calculated from 10.8V × 3.5Ah.
Can you customize the connector or wire for this battery pack?
Yes. Wires, cables, terminals, pins, tabs and connectors can be customized according to the electrical and mechanical interface requirements of the end device.
What are the dimensions of this 10.8V 3500mAh battery pack?
The published finished pack dimensions are approximately 20 × 58 × 73mm. The dimensional drawing should be reviewed together with the final battery configuration and connector arrangement.
Can the battery pack include a protection board or BMS?
A protection board or BMS can be evaluated according to the final battery configuration, charging method, discharge requirements and application conditions.
What are the standard charge and discharge currents?
The standard charge current is 700mA / 0.2C and the standard continuous discharge current is 1750mA. The maximum continuous charge current is 3500mA and the maximum continuous discharge specification is 11A.
What information should I provide to get a battery quotation?
Please provide the required voltage, capacity, maximum continuous and peak current, battery dimensions, connector or wire requirements, application, estimated quantity and any available device drawing or sample.
Shenzhen A&S Power Technology Co., Ltd.
- An OEM rechargeable battery manufacturer in China for over 18 years, specializing in Lithium Polymer Battery, LiFePO4 Battery and Li-ion Battery Pack. Our batteries have certification options such as UL, IEC 62133, CB, CE and RoHS, and some models have also passed KC and BIS certification.
- As a responsible and experienced battery manufacturer for over 18 years, we have been officially recognized by Philips, JVC, Skullcandy, Flex, Mitel, etc. since 2013.
- Our products are widely used in electronic products such as Bluetooth headsets, portable speakers, consumer products, emergency lights, GPS, digital players, solar and wind energy storage, electronic vehicles and E-buses.
- A&S Power actively participates in international exhibitions every year, such as CEBI and HK Electronic Fair. We implement international management standards and have established a complete quality assurance system.
- Our batteries have been supplied to international markets including America, Canada, Europe, Africa, the Middle East and South Asia.
- With the tenet of "People-oriented, Quality first and Keeping improving", we continue to improve quality, reduce costs and enhance services while paying attention to market changes, customer needs, safety and environmental protection.
- A&S Power is dedicated to creating lithium battery solutions for customers around the world and supporting long-term OEM business relationships.
Our Service
Looking for a Custom 10.8V 18650 Lithium-Ion Battery Pack?
Tell us your required voltage, capacity, dimensions, discharge current, connector and application requirements. Our engineering team can evaluate a suitable rechargeable battery pack configuration for your project.
Request a Custom Battery QuoteContact Us
Company Shenzhen A&S Power Technology Co., Ltd.
Tel +86-0755-28169348
Fax +86-0755-84157385
Email info@szaspower.com
Sales sales@szaspower.com
Address Rm1312, A Block, Weidonglong Business Building, No.2125 Meilong Rd, Longhua, Shenzhen, Guangdong, 518109, China
Our website lists only some of the products we have successfully supplied. These products are representative examples of our battery products and services. If you cannot find the battery pack you are looking for, please contact us for a customized solution.
Other Li-lon Battery
| Model No. | images | Voltage [V] | Capacity [mAh] | Thickness [mm] | Width [mm] | Length [mm] | Weight [g] |
|---|---|---|---|---|---|---|---|
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3.7v
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2600
|
19
|
//
|
69
|
50
|
|
 |
7.2v
|
7000
|
39
|
39
|
72
|
210
|
|
 |
14.8v
|
2600
|
20
|
75
|
72
|
190
|
|
 |
7.4v
|
2000
|
20
|
38
|
68
|
90
|
|
 |
11.1v
|
4400
|
67
|
95.5
|
153
|
330
|
|
 |
11.1v
|
4000
|
38
|
57
|
71
|
300
|
|
 |
10.8v
|
3500
|
20
|
58
|
73
|
170
|
|
 |
10.8v
|
9600
|
40
|
117
|
70
|
480
|
|
 |
10.8v
|
10500
|
40
|
117
|
70
|
480
|
|
 |
10.8v
|
6700
|
20
|
115
|
72
|
330
|
|
 |
11.1v
|
15000
|
58
|
69
|
110
|
750
|
|
 |
7.4v
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2600
|
20
|
40
|
72
|
90
|
|
 |
7.4v
|
10000
|
39.5
|
42.5
|
74
|
230
|
|
 |
14.4v
|
3400
|
22
|
38
|
134
|
220
|
|
 |
14.8v
|
5000
|
38
|
88
|
69
|
430
|
|
 |
18.5v
|
5000
|
49
|
70
|
100
|
480
|
|
 |
3.7v
|
5000
|
21
|
//
|
70
|
70
|
|
 |
3.7v
|
2200
|
18
|
//
|
65
|
50
|
|
 |
18v
|
15000
|
85
|
120
|
78
|
1200
|
|
 |
18v
|
10000
|
61
|
120
|
78
|
850
|
|
 |
7.2v
|
9800
|
40
|
80
|
100
|
400
|
|
 |
3.6v
|
50000
|
45
|
120
|
75
|
780
|
|
 |
3.7v
|
9600
|
24
|
44
|
73
|
165
|
|
 |
11.1v
|
7500
|
63
|
68
|
68
|
410
|
|
 |
22.2v
|
2500
|
31.0
|
72
|
112
|
500
|
|
 |
22.2v
|
4000
|
67
|
95.5
|
153
|
500
|
|
 |
25.2v
|
10500
|
58
|
135
|
78
|
1.1kg
|
|
 |
3.6v
|
24500
|
19.5
|
134
|
69
|
380
|
|
 |
25.2v
|
25000
|
126
|
163
|
77
|
2.7kg
|
|
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3.7v
|
2600
|
19
|
//
|
69
|
50
|
|
 |
3.7v
|
2600
|
19
|
//
|
69
|
70
|
|
 |
3.7v
|
2300
|
19
|
//
|
55
|
44
|
|
 |
25.9v
|
15000
|
77
|
167
|
181
|
1.7kg
|
|
 |
25.9v
|
15600
|
125
|
155
|
75
|
2.5kg
|
|
 |
7.2v
|
3000
|
20
|
39
|
72
|
98
|
|
 |
3.7v
|
5200
|
20
|
38
|
71
|
110
|
|
 |
3.7v
|
4000
|
22
|
38
|
53
|
76.0
|
|
 |
3.7v
|
10400
|
19
|
23
|
267
|
210
|
|
 |
18.5v
|
5000
|
42
|
70
|
93
|
480
|
|
 |
11.1v
|
2500
|
40
|
38
|
69
|
180
|
Handling Precautions & Guidelines
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How should I pay?
You can pay via T/TL/C at sightWestern Union Cash etc. 100% T/T in advance for samples. For large quantities 30% T/T in advance as soon as order confirmed and the balance before shipping via T/T or L/C etc. If you prefer other payment terms please contac
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Can lithium batteries be customized for specific applications?
Yes we provide tailored lithium batteries solutions to meet our customers' precise needs. Our customization options include size capacity voltage maximum discharge rate and other parameters. Contact us to explore how we can create a battery solution that fits your requirements perfectly.
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What is delivery time if we place an order?
It depends order quantities. Usually we can deliver goods within 3 -5 working days for small orders for more QTY. order let's confirm when you place official order.
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Are you factory?
We have factories both in Dongguan China. The factory covers an area of 8000㎡ Has 500 employees And 25 R&D engineers.We can produce 100000 lithium batteries every dayThe factory has passed SGS & TUV QMS certification.
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What is the minimum order quantity (MOQ) for lithium batteries?
The minimum order quantity of customized batteries is 3000 pcs. MOQ varies by battery type There is no minimum order quantity for conventional batteries.Contact us for details.
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Can I get samples of lithium batteries before placing a bulk order?
Yes many suppliers offer samples of lithium batteries for testing and evaluation purposes. However there are costs associated with obtaining samples including sample fees and freight charges.
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How safe are A&S Power Lithium Batteries?
Our batteries have special mechanisms to prevent overcharging discharging or short-circuiting.Each battery is tested for cycles safety aging and voltage before delivery.
