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VTC 18650-3S1P 10.8V 3.45Ah Li-ion Battery Pack for Smart Meter Backup, Wireless Sensor Nodes, Portable Monitoring Devices

ParameterSpecification
ModelVTC 18650-3S1P 3.45Ah
Battery TypeCylindrical Li-ion Rechargeable Battery Pack
Nominal Voltage10.8V
Typical Capacity3.45Ah
Pack Dimensions19.5 x 37.5 x 134.0mm max
Weight190g
Protection ICS-8254AANFT-TB-x
MOSFETAO4407 / DP4407 array
Overheat Protection70°C discharge stop threshold
Cycle Life≥500 cycles at 70% retention; ≥300 cycles at 80% retention
Operating Humidity≤75% RH under standard test conditions

VTC 18650-3S1P 10.8V 3.45Ah Li-ion Battery Pack for Smart Meter Backup, Wireless Sensor Nodes, Portable Monitoring Devices

The VTC 18650-3S1P is a Li-ion rechargeable battery pack from VTCBATT built for stable 3-series power delivery in compact equipment that needs dependable energy density and protected pack structure. This 10.8V nominal, 3.45Ah battery pack offers 3.35Ah minimum capacity, 12.6V limited charge voltage, 7.5V discharge cut-off voltage, standard 0.5C charging and discharging, 6A maximum discharge current, and pack dimensions of 19.5 x 37.5 x 134.0mm with a typical weight of 190g. The design includes PCM protection based on S-8254AAN protection IC and AO4407 MOSFET arrangement, with overcharge, overdischarge, overcurrent, and short-circuit protection details documented in the source file. VTCBATT supports factory supply, custom wire and connector matching, label printing, OEM/ODM pack integration, sample development, and stable batch production for customers sourcing rechargeable lithium battery packs for branded equipment and industrial projects.

Compact 3S1P Pack Structure

This battery pack combines three 18650 cells in a compact 3S1P structure with a maximum size of 19.5 x 37.5 x 134.0mm. The slim blue PVC-wrapped format is practical for enclosed equipment, portable housings, and products that need 10.8V output without using a bulky battery module.
Compact 3S1P Pack Structure
OEM Wiring and Pack Customization

OEM Wiring and Pack Customization

The pack format is suitable for OEM adaptation through wire length, connector matching, labeling, and pack integration changes around the documented 3S protection structure. This is useful for equipment makers that need a ready-to-install rechargeable pack for pilot runs, sample validation, or repeat factory supply.

Protected Output for Embedded Devices

The documented PCM design uses S-8254AAN protection control and AO4407 MOSFET switching to support overcharge, overdischarge, overcurrent, and short-circuit protection. This makes the pack better suited to embedded electronics, portable instruments, and OEM devices that need a safer rechargeable power assembly rather than loose cells.
Protected Output for Embedded Devices
Reliable Capacity in a Slim Footprint

Reliable Capacity in a Slim Footprint

With 3.45Ah typical capacity, 3.35Ah minimum capacity, and standard 0.5C operating conditions, the pack is positioned for low-to-medium power equipment that needs useful runtime in a narrow battery space. It supports practical energy storage for portable monitoring units, utility devices, and remote sensor equipment.

Full Certification & Extended Warranty

VTCBATT 18650 3S1P 10.8V 3.45Ah  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.

Full Certification

VTCBATT 18650-3S1P 10.8V 3.45Ah Li-ion Battery 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.

Ultra Long Warranty

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.

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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.

A Benchmark of Automatic Lithium Polymer Battery Manufacturing Line - VTCBATT Modern Facility

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

Application for 18650-3S1P 10.8V 3.45Ah Li-ion battery pack

This 18650 3S1P lithium battery pack is suitable for smart meters, wireless sensor terminals, portable monitoring devices, industrial backup modules, security electronics, and other low-to-medium power systems that need a compact 10.8V rechargeable power source with practical runtime and protected output. Its 3.45Ah capacity, 6A maximum discharge capability, and operating range from low-temperature discharge up to 60°C make it a practical fit for embedded equipment, field monitoring products, and control systems where space, wiring layout, and safety protection matter. VTCBATT can adapt the pack for different applications through connector matching, wire length adjustment, protection circuit configuration, labeling, and sample verification, while offering factory-direct and battery wholesale support for equipment manufacturers, distributors, and OEM brand owners.

connector-matched electronics
connector-matched electronics
embedded control cabinets
embedded control cabinets
IoT environmental monitoring sensors
IoT environmental monitoring sensors
Medical support electronics
Medical support electronics
Portable testing instruments
Portable testing instruments
Security alarm backup packs
Security alarm backup packs
Smart agriculture controllers
Smart agriculture controllers
application images smart utility meters
Smart utility meters
       
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Looking for the perfect battery solution? Our expert engineering team is ready to support you from idea to delivery. Whether you need custom voltage, size, or application-specific design, we’re here to make it happen. Get in touch today and let us power your success—one battery at a time!
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