VTC18650-1S6P 3.6V 20.1Ah Cylindrical Li-ion Battery Pack for smart water meters, IoT sensor nodes, portable lighting systems
| Parameter | Specification |
|---|---|
| Model | VTC18650-1S6P 20.1Ah (18650-34MP) |
| Battery Type | Cylindrical Lithium Ion Rechargeable Battery |
| Configuration | 1S6P 18650 battery pack |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 20.1Ah, discharge with 2.72A to 2.5V |
| Minimum Capacity | 19.5Ah, discharge with 2.72A to 2.5V |
| Charge Profile and Limit | Standard charge 0.2C (4.02A), CC/CV 4.2V, cut-off 201mA; rapid charge 0.3C (6.03A) |
| Discharge Cut-off and Max Current | Standard discharge 0.2C (4.02A) to 2.5V; max discharge 0.3C (6.03A) |
| Pack Dimensions and Weight | 38.0*58.0*68.0mm max.; approx. 310g |
| Operating Temperature and Protection | Charge: 0°C to 45°C by current range; discharge: -20°C to 60°C by current range; overheat protection at 70°C |
VTC18650-1S6P 3.6V 20.1Ah Cylindrical Li-ion Battery Pack for smart water meters, IoT sensor nodes, portable lighting systems
The VTC18650-1S6P 20.1Ah cylindrical Li-ion battery pack is a 3.6V rechargeable battery solution built from a 1S6P 18650 cell structure for equipment that needs higher capacity in a compact pack format. The datasheet confirms 20.1Ah nominal capacity, 19.5Ah minimum capacity, 4.2V maximum charge voltage, 0.2C standard charge and discharge current, 0.3C rapid charge and maximum discharge current, 2.5V discharge cut-off, 38.0*58.0*68.0mm maximum pack size, and approximately 310g weight. Pack-level protection data covers over-charge, over-discharge, over-current, short protection, and overheat protection behavior, helping OEM engineers match the battery to device electronics.
VTCBATT supports factory supply, sample development, connector and wire customization, labeling, OEM/ODM battery pack production, wholesale orders, and stable batch delivery for B2B customers.
High-Capacity 1S6P Power
OEM Wire and Connector Customization
Protected Pack Structure
Wide Temperature Application Fit
The specification supports discharge operation from -20°C to 60°C with current limits adjusted by temperature range, and charge operation from 0°C to 45°C. These source-backed limits help equipment designers define safe charging, discharge, and standby strategies for field devices.
Full Certification & Extended Warranty
VTCBATT VTC18650-1S6P 3.6V 20.1Ah Li-ion battery pack meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.
VTCBATT VTC18650-1S6P 3.6V 20.1Ah Li-ion battery pack passed all the major global certifications, such as CB, CE, EN61000,IEC62133,MSDS.UN38.3,ROHS,UL,BIS,KC Certification,which makes your product more competitive.
Compared to a normal 12-month warranty, VTCBATT 18650 batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.
VTCBATT Production and Service
VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application for VTC18650-1S6P 3.6V 20.1Ah li ion battery pack
This 3.6V 20.1Ah Li-ion battery pack is suitable for smart water meters, wireless meter reading modules, IoT sensor nodes, GPS asset trackers, access control backup modules, portable lighting products, handheld terminals, and field test instruments where long runtime and a protected one-series rechargeable pack are required. The rectangular blue 1S6P 18650 pack format provides more capacity than small single-cell packs while remaining practical for enclosure integration with red and black lead wires. For application-specific projects, VTCBATT can help adjust wire length, connector type, insulation method, NTC or protection circuit requirements where needed, product labeling, sample testing, and batch production planning. Factory-direct battery wholesale support is available for equipment manufacturers, distributors, brand owners, and pack assemblers that need repeatable supply for commercial devices.
VTC18650-1S6P 3.6V 20.1Ah Cylindrical Li-ion Rechargeable Battery Pack Datasheet Overview
This article summarizes the supplied VTC Power datasheet for the VTC18650-1S6P 20.1Ah rechargeable Li-ion battery pack and converts the main technical data into buyer-ready product page content.
Product Overview
The product is identified as VTC18650-1S6P 20.1Ah, a cylindrical lithium-ion rechargeable battery pack using a 1S6P 18650 cell configuration. The datasheet lists a nominal voltage of 3.6V and a nominal capacity of 20.1Ah, with the pack marked as 72.36Wh.
Core Electrical Parameters
| Parameter | Specification |
|---|---|
| Model | VTC18650-1S6P 20.1Ah (18650-34MP) |
| Battery Type | Cylindrical Lithium Ion Rechargeable Battery |
| Configuration | 1S6P 18650 battery pack |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 20.1Ah, discharge with 2.72A to 2.5V |
| Minimum Capacity | 19.5Ah, discharge with 2.72A to 2.5V |
| Charge Profile and Limit | Standard charge 0.2C (4.02A), CC/CV 4.2V, cut-off 201mA; rapid charge 0.3C (6.03A) |
| Discharge Cut-off and Max Current | Standard discharge 0.2C (4.02A) to 2.5V; max discharge 0.3C (6.03A) |
| Pack Dimensions and Weight | 38.0*58.0*68.0mm max.; approx. 310g |
| Operating Temperature and Protection | Charge: 0°C to 45°C by current range; discharge: -20°C to 60°C by current range; overheat protection at 70°C |
Pack Size and Structure
The maximum dimensions are specified as 38.0*58.0*68.0mm with an approximate weight of 310g. The finished assembly section shows the pack outline and printed code, while the supplied product images show a blue heat-shrink wrapped rectangular pack with red and black output leads.
Charging, Discharging, and Temperature
Standard charging is listed as 0.2C (4.02A) CC/CV to 4.2V with a 201mA cut-off. Rapid charging is listed as 0.3C (6.03A). Standard discharge is 0.2C (4.02A) to 2.5V, and maximum discharge current is 0.3C (6.03A). Temperature-dependent current limits are defined for charge and discharge operation, so device designers should match firmware and protection behavior to the datasheet ranges.
Protection Circuit Notes
The electrical characteristics section lists over-charge, over-discharge, over-current, short protection, and current consumption parameters. These values should be reviewed during equipment design, especially when connector, wire length, PCB layout, and enclosure thermal behavior are customized.
Application Fit
The 3.6V 20.1Ah 1S6P format is suitable for rechargeable equipment that needs extended runtime, protected Li-ion pack integration, and moderate current operation within the datasheet limits. Typical B2B applications include smart meters, IoT sensor nodes, GPS trackers, security systems, portable lighting, and handheld terminals.
OEM/ODM Supply Notes
VTCBATT can support project-based battery pack customization, including lead wire length, connector matching, insulation approach, labeling, sample validation, and wholesale batch supply. Any certification, current, temperature, or safety requirement should be confirmed against the final project specification and approved pack design.
