11.1V 50Ah 18650 Lithium Ion Battery Sanyo Battery for Train Monitor
Train Monitor Lithium-ion Battery Pack
11.1V 50Ah 18650 3S20P Lithium ion Battery Pack

11.1V 50Ah 18650 Lithium Ion Battery Pack

Product Number:
22AQ115-01
Nominal voltage:
11.1V
Nominal capacity:
50Ah
Battery Configuration:
18650-3S20P
Dimension:
165 × 128 × 108mm (Max)
Application:
monitoring equipment
Get Custom Solution
High Capacity 50Ah, Wide Temperature Range, Multi Protection System
Product Overview

Electrical Specifications

Attribute Parameter
Product Number 22AQ115-01
Cell Model 18650 / 3.7V / 2.5Ah
Battery Configuration 18650-3S20P
Nominal Voltage 11.1V
Nominal Capacity 50Ah
Rated Energy 555Wh
Charging Voltage 12.8V
Discharge Cut-off Voltage 9.0V
Standard Charging Current ≤5A
Standard Discharge Current 5A
Internal Resistance ≤200mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0～45℃
Discharge Temperature -20～60℃
Storage Temperature -20～35℃
Dimensions 165 × 128 × 108mm (Max)
Weight 3.2kg
Battery Case Blue PVC
Protection System Short circuit / Overcharge / Overdischarge / Overcurrent protection

Application Background

This battery solution is designed for EMU monitoring instruments and rail transit measurement equipment, suitable for rail operation monitoring, data acquisition, and field inspection applications.
The equipment requires long-term stable power supply under complex environments, placing high demands on endurance, output stability, and safety performance.

Project Challenges

Monitoring equipment requires 10–12 hours continuous operation
Long-term data acquisition demands stable power output
Complex rail transit environments require enhanced safety protection
Limited device space requires compact battery size and weight control

Customized Battery Solution

11.1V 3S20P configuration: provides stable power for rail monitoring equipment
50Ah high-capacity design: supports long-duration continuous operation
Multi-protection system: overcharge, overdischarge, overcurrent, and short-circuit protection
Wide temperature performance: stable operation from -20℃ to 60℃

Application Results

Supports continuous operation for over 10 hours
Improves equipment operating stability by approximately 20%+
High-capacity design reduces charging frequency
Stable cycle performance extends equipment service life

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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