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Li-lon Battery AS21700 18v 15Ah 5S3P Lithium Ion Battery Pack (270Wh)
18V 15Ah 21700 lithium-ion battery pack (5S3P) delivering 270Wh of stable energy with 500+ deep cycles. High-capacity, long-lasting, and customizable by A&S Power Battery for power tools, industrial equipment, and energy storage.
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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
18V 15Ah 5S3P 21700 Lithium Ion Battery Pack
AS21700 is a rechargeable 21700 lithium-ion battery pack rated at 18V and 15Ah, with a total nominal energy of approximately 270Wh. This battery pack is designed for OEM applications that require a high-capacity 5S3P configuration, custom dimensions, battery terminals, connectors, wires and protection circuitry.
Need a customized 21700 battery pack?
Send us your required voltage, capacity, dimensions, connector, discharge current or device requirements.
18V 15Ah 5S3P 21700 Battery Pack Specifications
The following specifications describe the current AS21700 battery pack configuration. For OEM projects, voltage, capacity, mechanical dimensions, current requirements, terminals, connectors and protection functions can be evaluated according to the customer's device and application requirements.
| Parameter | Specification | Test Condition / Note |
|---|---|---|
| Battery Configuration | 5S3P | 5 cells in parallel in each of 5 series groups |
| Capacity | Typical: 15Ah Minimum: 14.7Ah |
25±5℃, charge 0.2C, discharge 0.2C |
| Nominal Voltage | 18V | Average nominal voltage |
| Nominal Energy | Approx. 270Wh | 18V × 15Ah |
| AC Impedance | ≤25mΩ / cell Pack impedance not specified in source data |
Cell and finished battery pack specifications |
| Discharge End Voltage | 12.5V | Discharge cut-off voltage |
| Charge Voltage | 21.0V | Charge cut-off current ≤150mA |
| Standard Charge Current | 3.0A / 0.2C | Standard charge condition |
| Charge Time | Approx. 6 h | Standard charge condition |
| Continuous Charge Current | 10A max. | Maximum continuous charge current |
| Continuous Discharge Current | 5A | Standard continuous discharge current |
| Max. Continuous Discharge Current | 10A | Maximum continuous discharge current |
| Weight | Approx. 1.2kg | Finished battery pack |
| Shipping Voltage | 18.0~19.0V | 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 |
AS21700 18V 15Ah 270Wh Lithium-Ion Battery Pack
High-Capacity 21700 Battery Pack for OEM Applications
The AS21700 is a 5S3P rechargeable lithium-ion battery pack using 21700-format cells. With a nominal voltage of 18V and capacity of 15Ah, the pack provides approximately 270Wh of nominal energy.
This configuration can be supplied as a standard battery pack or evaluated for OEM customization according to the electrical, mechanical and interface requirements of the end product.
- 18V nominal voltage and 15Ah capacity
- 5S3P 21700 cell configuration
- Approx. 270Wh nominal energy
- Custom battery terminals, wires and connectors available
- Protection circuit / BMS options for applicable designs
- OEM engineering, prototype and production support
Applications of 18V 15Ah 21700 Lithium-Ion Battery Packs
This 18V 15Ah 5S3P battery pack provides approximately 270Wh of nominal energy in a 1.2kg package, with a standard continuous discharge current of 5A and a maximum continuous discharge current of 10A. The configuration can be evaluated for equipment that requires a medium-capacity rechargeable battery system, while the final battery design should be matched to the electrical load, available installation space, operating environment and applicable safety requirements.
Custom Battery Terminations, Pins, Tabs, Wires & Connectors
A battery pack is not limited to the cell configuration itself. For OEM integration, A&S Power can evaluate different termination and connection requirements, including PC pins, tabs, solder tabs, wires, leads, cables and connectors.
If the required termination is not shown below, send us your connector part number, drawing, photo or device interface requirement. Our engineering team can evaluate a suitable battery termination solution.
Any Plug & Mode!
Custom Production
Battery terminals, wires, connectors and interface designs can be evaluated according to your device requirements.
Have a drawing, connector model or sample? Send it to us for an engineering review.
Please Contact Us for Details >>>
Battery Materials & Manufacturing Process
Custom Lithium-Ion Battery Pack Options
The AS21700 configuration can be used as a reference design for OEM battery development. Depending on the application, battery pack customization may include electrical specifications, mechanical construction, protection circuitry and connection interfaces.
Voltage & Capacity
Battery voltage, capacity and cell configuration can be evaluated according to the device power requirements.
Dimensions & Layout
Battery pack dimensions, cell arrangement, enclosure space and mechanical layout can be designed for OEM integration.
Terminals & Connectors
Wires, cables, tabs, pins and connectors can be evaluated according to the device interface.
Protection Circuit
Protection board or BMS functions can be considered based on voltage, current, temperature and application requirements.
Labels & Housing
Battery labels, protective materials and pack construction can be discussed for OEM production requirements.
Prototype to Production
Engineering evaluation, prototype development, testing and production support are available for qualified projects.
Battery Protection Board & BMS Options
Protection for Customized Battery Pack Applications
Depending on the battery configuration and end-use application, a customized lithium-ion battery pack may require a protection circuit or BMS.
Protection functions can be evaluated according to the required battery voltage, charge and discharge current, temperature range and system interface.
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Temperature monitoring / NTC options
- Communication functions for applicable BMS designs
Personalized Production for OEM Battery Packs
OEM Lithium Battery Pack Engineering Process
For a custom battery project, providing the main electrical and mechanical requirements at the quotation stage helps the engineering team evaluate the battery configuration and provide a more accurate proposal.
Custom Battery Pack Engineering & OEM Manufacturing
A&S Power provides custom rechargeable battery pack development for electronic, industrial and OEM applications. Depending on project requirements, support can include battery configuration, mechanical design, connector and wire selection, protection circuit design, prototype development, testing, certification support and production.
For an accurate quotation, customers can provide a battery drawing, existing battery sample, product specification, required voltage and capacity, maximum continuous/peak current, dimensions, connector information and expected order quantity.
Battery Quality Control & Compliance
Quality & Testing
Battery packs are evaluated according to the product specification and applicable production requirements. Testing may include electrical performance, voltage, capacity, impedance, safety-related checks and aging or cycle testing where applicable.
Certifications
A&S Power provides rechargeable lithium battery products with applicable certification options. Certification requirements depend on battery chemistry, design, destination market and final application.
*Available for applicable models and project requirements.
Safety Handling and Lithium Battery Design
Lithium-ion battery packs must be selected, designed, charged, transported and used according to the battery specification and applicable safety requirements. Battery protection, operating temperature, charging parameters and system integration should be evaluated before mass production.
For application-specific battery safety or compliance requirements, please contact A&S Power before selecting a final battery design.
Frequently Asked Questions About This 21700 Battery Pack
Can the 18V 15Ah 5S3P battery pack be customized?
Yes. The AS21700 configuration can be evaluated as an OEM reference design. Depending on the project, customization may include capacity, dimensions, battery terminals, wires, connectors, protection circuitry and other specifications.
Can you customize the connector or wire for this battery pack?
Yes. A&S Power supports different battery termination options, including wires, cables, tabs, pins and connectors. Customers can provide a connector model, drawing, photo or sample for evaluation.
What is the energy of the 18V 15Ah battery pack?
The nominal energy is approximately 270Wh, calculated from 18V × 15Ah.
What does 5S3P mean for this 21700 battery pack?
5S3P means five cells are connected in parallel in each of five series groups. This configuration provides a nominal voltage of 18V and a typical capacity of 15Ah.
Can the battery pack include a protection board or BMS?
A protection circuit or BMS can be evaluated according to the battery configuration and application requirements. Protection functions may include overcharge, over-discharge, over-current, short-circuit and temperature protection.
Can I request a sample before placing a production order?
Sample development can be discussed for custom battery projects. Sample requirements, engineering work, quantity, cost and shipping arrangements depend on the project.
What information should I provide to get a battery quotation?
For a faster quotation, please provide the required voltage, capacity, maximum continuous and peak current, battery dimensions, connector or wire requirements, application, target quantity and any existing battery drawing or sample.
About Shenzhen A&S Power Technology Co., Ltd.
Shenzhen A&S Power Technology Co., Ltd. is an OEM rechargeable battery manufacturer in China specializing in lithium polymer batteries, LiFePO4 batteries and lithium-ion battery packs.
- More than 18 years of rechargeable battery manufacturing experience.
- Battery solutions for OEM and custom applications.
- Product certification options including UL, IEC 62133, CB, CE and RoHS, with KC and BIS available for applicable models.
- A&S Power has supplied battery products to international markets including North America, Europe and other regions.
- The company has supplied battery products for customers associated with brands including Philips, JVC, Skullcandy, Flex and Mitel.
Our OEM Battery Pack Service
Looking for a Custom 21700 Lithium-Ion Battery Pack?
Tell us your voltage, capacity, dimensions, current requirements, connector, application and estimated quantity. Our team can evaluate the battery configuration and provide a quotation for your OEM project.
Request a Custom Battery QuoteContact A&S Power for a Battery Quote
Shenzhen A&S Power Technology Co., Ltd.
Tel: +86-0755-28169348
Email: info@szaspower.com
Sales: sales@szaspower.com
What to Send for RFQ
Voltage / Capacity / Dimensions / Current / Connector / Application / Quantity
If available, please also send a battery drawing, existing battery sample, connector model or product specification.
Product specifications may vary according to the final battery configuration and application requirements. Please contact A&S Power to confirm the latest technical specification before placing an order.
Other Li-lon Battery
| Model No. | images | Voltage [V] | Capacity [mAh] | Thickness [mm] | Width [mm] | Length [mm] | Weight [g] |
|---|---|---|---|---|---|---|---|
 |
3.7v
|
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
|
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
|
|
 |
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.
