The 8S4P Samsung 28.8V 20Ah lithium battery pack is engineered for high-current and high-performance applications. Built with original Samsung Grade A cells in a 8S4P configuration, it delivers 33.6V-24V output, 20Ah capacity, and supports up to 180A peak discharge, making it ideal for power-demanding equipment.
| Product Type | Lithium Ion Battery Pack |
|---|---|
| Model number | Samsung 21700-8S4P |
| Voltage (Nominal) | 28.8V |
| Capacity (Nominal) | 20000mAh |
| Dimensions | 90*80*180mm |
| Constant Discharge Current | 100A, Peak 180A |
| Working Temperature | -20°C~60°C |
| Certification | ISO9001/ISO14001 |
LithoTop’s high discharge rate Li-ion battery packs are engineered for applications that require instant high current output and stable voltage. Built with premium Grade A lithium-ion cells, these battery packs deliver powerful performance in a compact and reliable design.
Each pack is professionally assembled with precise cell matching, strong nickel connections, and strict quality inspection to ensure consistent output and long service life.
High Discharge Capability
Supports high continuous and peak discharge current for power-hungry equipment.
Stable Voltage Output
Maintains stable performance even under heavy load with minimal voltage drop.
Grade A Lithium-ion Cells
Brand-new cells with low internal resistance, accurate capacity, and excellent consistency.
Long Cycle Life
Designed for frequent charge and discharge with reliable performance over time.
Compact & Durable Structure
Optimized pack design with strong mechanical stability and heat resistance.
OEM & ODM Customization Available
Custom voltage, capacity, discharge rate, dimension, connectors, wiring.
NO. | Items | Specifications |
1 | Mode | Samsung 21700-8S4P |
2 | Size | 90*80*180（mm） |
3 | Charge voltage | 33.6V |
4 | Nominal voltage | 28.8V |
5 | Nominal capacity | 20000mAh |
6 | Charge current | Standard Charging:：0.5C/Rapid charge：1.0C |
7 | Standard Charging method | 0.2C（constant current）charge to 33.6V,then CV(constant voltage 33.6V)charge till charge current decline to≤0.01C |
8 | Charging time | Standard Charging：3.0hours(Ref.)/Rapid charge：2hours(Ref.) |
9 | Max.charge current | 1C |
10 | Max.discharge current | 5C(100A)|Peak 9C(180A) |
11 | Discharge cut-off voltage | 24V |
12 | Operating temperature | Charging：0℃~45℃/Discharging：-20℃~60℃ |
13 | Storage temperature | -20℃~ +45℃ |
14 | Weight | Approx：2.38kg |
Nominal voltage: 21.6V |Charge voltage: 25.2V |Customized capacity(mAh):
5000mAh, 10000mAh, 15000mAh, 20000mAh
Nominal voltage: 28.8V |Charge voltage: 33.6V |Customized capacity(mAh):
5000mAh, 10000mAh, 15000mAh, 20000mAh
Nominal voltage: 21.6V |Charge voltage: 25.2V |Customized capacity(mAh):
5000mAh, 10000mAh, 15000mAh, 20000mAh
Nominal voltage: 28.8V |Charge voltage: 33.6V |Customized capacity(mAh):
5000mAh, 10000mAh, 15000mAh, 20000mAh
Power tools and industrial equipment
Robotics, AGV, and automation systems
Electric scooters and mobility devices
Drones and RC equipment
Medical and monitoring devices
High-power portable electronics
