18650 14.4V 40Ah Lithium Ion Battery
Product Number:
03EQ113-01
Nominal voltage:
14.4V
Nominal capacity:
40.2Ah
Battery Configuration:
18650-4S12P
Dimension:
220×165×85mm
Application:
medical cart
Shockproof and waterproof design, RS485 communication，LCD battery status display
Product Overview
Electrical Specifications
| Attribute | Parameter |
| Product Number | 03EQ113-01 |
| Cell Model | 18650/3.6V/3350mAh Panasonic |
| Battery Configuration | 18650-4S12P |
| Nominal Voltage | 14.4V |
| Nominal Capacity | 40.2Ah |
| Rated Energy | 578.88Wh |
| Charging Voltage | 16.8V |
| Discharge Cut-off Voltage | 10.8V |
| Standard Charging Current | ≤8A |
| Standard Discharge Current | 3A |
| Max Continuous Discharge Current | 5A |
| Internal Resistance | ≤280mΩ |
Mechanical & Environmental
| Attribute | Parameter |
| Charging Temperature | 0 ~ 45℃ |
| Discharge Temperature | -20 ~ 55℃ |
| Storage Temperature | -20 ~ 50℃ |
| Dimensions | 220 × 165 × 85mm |
| Weight | 4.0kg |
| Output Type | — |
| Battery Case | Metal case |
| Communication Protocol | RS485 |
| Protection Rating | Waterproof connector, shockproof enclosure |
| Protection System | Short circuit, overcharge, overdischarge, overcurrent, temperature protection |
Application Background
This battery solution is specially designed for healthcare carts, suitable for hospital rounds, mobile nursing, and in-room power supply for medical equipment in high-frequency usage scenarios.
Healthcare carts require long continuous operation and stable voltage when multiple devices are running simultaneously, demanding high endurance, output stability, and safety.
Project Challenges
- The device needs continuous power supply for 6–8 hours or more
- Simultaneous operation of multiple peripherals causes high instantaneous loads, increasing voltage fluctuation risks
- Frequent charging and discharging require stable cycle life and low internal resistanc
- Limited device size imposes strict requirements on dimensions and weight
Customized Battery Solution
- High-capacity platform: 14.4V 40.2Ah battery pack to support long-lasting stable power
- Metal protective casing: cold-rolled metal design for shockproof and waterproof performance, enhancing structural safety
- Intelligent management system: LCD display and RS485 communication for precise charge/discharge control and temperature monitoring
- Waterproof aviation connector: ensures reliable connections in mobile and demanding environments
Application Results
- Supports continuous operation for 6–8 hours or more
- Stable output under high-load multi-device operation, improving device stability by approximately 15%+
- Shockproof and waterproof design with aviation connector enhances portability and reliability
- Long cycle life extends the overall service life of healthcare carts
We support flexible customization based on your project requirements, including:
- Voltage range: 3.2V – 72V
- Capacity range: 100mAh – 100Ah
- Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
- Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
- BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.
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