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Custom 5V Lithium Battery Manufacturer

5V lithium batteries are widely used in low-power electronic devices and portable power systems, providing stable and safe power for compact electronic terminals.
With the miniaturization and integration of smart devices, higher requirements are placed on battery size, output stability, and safety.
LARGE focuses on custom 5V lithium battery development, offering integrated solutions from cell selection and structural design to protection circuit design. This ensures an optimal balance between compact size, safety, and stable output, improving overall device reliability.

5V Lithium Battery Customization Capabilities

Low Power Optimization
Designed for low-current devices to improve standby time and overall runtime
Lightweight & Compact Design
Small-form cells and optimized structure for space-constrained devices

PCM Protection Circuit
Integrated protection against overcharge, over-discharge, overcurrent, and short circuit
Stable Output Design
Maintains stable voltage to prevent device reset or abnormal fluctuations

Technical Specifications

Nominal Voltage	3.7V / 5V
Capacity Range	.5Ah – 20Ah
Charge Voltage	4.2V (single cell) 5V regulated input system
Discharge Cut-off	2.8V – 3.V (cell level, configurable)

Series Configuration	1S (single cell system) 1S + DC-DC regulated output
Discharge Rate	0.2C – 3C
Cycle Life	500 – 1500 cycles
Operating Temperature	-20°C ~ 60°C (standard)

Note: Specifications can be customized based on application requirements.

5V Lithium ion Battery Pack

Selected case references, customizable for different application scenarios.

18650 5V 10Ah Low Temperature Explosion-Proof Power Bank

3.6V 6700mAh Lithium Battery Samsung Battery for Monitor with I2C Communication

5V 8000mAh 18650 Lithium Battery Pack

5V Lithium Battery Pack Applications

Portable Industrial Instruments

Gas detectors, vibration meters, thermal imagers, digital multimeters
Low power optimization | Compact size | Long runtime

IoT & Smart Sensors

IoT sensors, smart metering, asset tracking, environmental monitoring
Ultra-low self-discharge | Wide temperature range (-40°C to 85°C) | Maintenance-free

Handheld Data Terminals

Warehouse scanners, POS devices, industrial PDAs
High energy density | Compact structure | Ultra-low standby consumption

Portable Medical Devices

Handheld ultrasound, glucose meters, pulse oximeters, portable ECG
High safety | Accurate fuel gauge | Medical compliance

Wearables & Consumer Electronics

Smartwatches, TWS earbuds, smart glasses, voice recorders, e-cigarettes
Ultra-thin flexible design | Lightweight | Fast charging support

Communication & Backup Power Modules

Small communication modules, routers, embedded systems
Stable voltage output | Strong anti-interference | Continuous power supply

Looking for the Right Battery Solution?

We provide professional customization based on your application needs.

5V Lithium ion Battery Application Case

5V 2Ah Smart Meter Lithium Battery Solution

Project Background
A smart energy company developed wireless metering devices for water, electricity, and gas data collection and transmission.
The device operates in low-power intermittent mode, requiring long runtime, compact size, and stable power supply.

Project Challenges

Long-term maintenance-free operation required
Extremely limited internal space
Low-power standby with frequent communication bursts
High requirement for stable power to avoid data loss

Solution

Custom 5V 2Ah compact lithium battery
High energy density cells to optimize size and weight
Low-power supply design for intermittent wake-up operation
Integrated PCM for overcharge / over-discharge / overcurrent / short-circuit protection

Results

Supports 3–5 years long-term operation
Significantly reduced battery size for compact meter design
Improved data transmission stability
Lower maintenance frequency and operating cost

Low-Power Design Logic of 5V Lithium Batteries

Why Low-Current Design Matters

5V batteries are commonly used in smart metering, sensors, and IoT devices, which stay in standby mode most of the time and only activate briefly for data transmission.
Low-current design minimizes energy loss and extends overall battery life.

Standby vs Working Mode

In standby mode, the device runs at micro-current levels.
In active mode, it delivers short bursts of higher current for communication.
The battery must support this “low standby + pulse output” behavior.

Why Capacity ≠ Linear Runtime Increase

In low-power systems, runtime depends not only on battery capacity, but also on standby current, communication frequency, and system efficiency.
Simply increasing capacity does not proportionally extend runtime.

Key Selection Factors

Standby current consumption
Wake-up / transmission frequency
Overall system power architecture
Requirement for long-term unattended operation

Core Insight

The key to 5V battery design is low power system optimization, not just larger capacity
Proper matching of power consumption profile is more critical than capacity stacking

Related Lithium Battery Voltages

5V Lithium ion Battery FAQs

Can a 5V lithium battery be customized?

Yes. It can be customized in capacity, size, protection circuit (PCM), and discharge characteristics based on specific device requirements.

What is the price of a 5V lithium-ion battery?

The price depends on capacity, protection circuit, and customization level. Small standard units are low-cost, while industrial custom versions are higher.