IFR18650HT-2S3P 6.4V 4.5Ah LiFePO4 Battery Pack for smart meters, outdoor IoT sensors, PLC backup modules
| Parameter | Specification |
|---|---|
| Model | VTC IFR18650HT-2S3P |
| Battery Type | Cylindrical LiFePO4 Rechargeable Battery Pack |
| Configuration | 2S3P |
| Nominal Voltage | 6.4V |
| Nominal Capacity | 4.5Ah, discharge with 0.2C to 5.0V |
| Minimum Capacity | 4.35Ah, discharge with 0.2C to 5.0V |
| Charge / Discharge Limit | 7.3V max charge voltage; 5.0V discharge cut-off |
| Maximum Current | 1C (4.5A) max charge; 1C (4.5A) max discharge |
| Pack Dimensions / Weight | T*W*L: 20*57.0*133.0mm MAX.; 240g |
| Operating Temperature | Charge: 0~60°C with derating; discharge: -20~80°C with derating |
IFR18650HT-2S3P 6.4V 4.5Ah LiFePO4 Battery Pack for smart meters, outdoor IoT sensors, PLC backup modules
The VTCBATT IFR18650HT-2S3P is a cylindrical LiFePO4 rechargeable battery pack built as a 2S3P assembly for 6.4V nominal voltage and 4.5Ah nominal capacity. The datasheet specifies 7.3V maximum charge voltage, 5.0V discharge cut-off voltage, 0.2C standard charge and discharge current, 1C maximum charge current, 1C maximum discharge current, internal impedance no more than 120mOhm, and a maximum pack dimension of 20*57.0*133.0mm. The pack includes a protection circuit with overcharge, over-discharge, over-current, and short-circuit protection details, plus high-temperature discharge operation with derated current up to 80 degC. VTCBATT supports factory supply, OEM/ODM development, connector and wire-harness customization, sample testing, wholesale orders, and stable batch production for equipment manufacturers and battery distributors.
Full Certification & Extended Warranty
VTCBATT batteries 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.
CertificationVTCBATT lithium ion batteries have passed numerous important international certifications, including UL1642, IEC62133, UN38.3, CE, ROHS, BIS and EU2024/1542, CE, ROHS, REACH, and KC certifications.
WarrantyVTCBATT batteries come with a 14-month warranty, 2 months longer than the standard 12-month warranty, providing extra coverage for shipping and customs clearance. This ensures customer confidence.
CustomizationDifferent sizes,capacities, connectors, discharge rates,and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized battery proposal.

Flexible order quantity to support prototype testing and mass production.

Our technical and sales teams reply to your inquiry within 6 hours.

Test our lithium battery quality and performance before placing bulk orders.
Batteries certified to UL, CE, UN38.3, MSDS, ROHS, IEC62133, and more global standards.
High-Temperature Discharge Ready


Long Cycle LiFePO4 Pack
OEM Connector Integration


Protected 2S3P Assembly
Battery Advantage

LFP batteries offer a long cycle life of 3,000–6,000 cycles, retaining ≥80% capacity at 80% DoD, significantly outperforming lead-acid batteries (300–500 cycles).

VTCBATT battery can be discharged from -20℃ to 60℃.
This wide temperature range performance enables the battery to operate in many conditions.

VTCBATT battery can be discharged in different rates of 0.2C,0.5C,1C,2C,3C to meet different power consumption.

After 30-day and 60-day storage, there is slight 1%-2% slight voltage decrease under 50% SOC at 25°C.
Why Choose VTCBATT?
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 18650 2S3P 6.4V 4.5Ah LiFePO4 battery pack
This 6.4V 4.5Ah LiFePO4 battery pack is suitable for smart meter modules, outdoor IoT sensor nodes, data loggers, security alarm panels, GPS tracking terminals, industrial PLC backup modules, smart agriculture controllers, and environmental monitoring stations where rechargeable service life, compact pack construction, and protected wiring integration are required. The 2S3P cylindrical layout, blue shrink-wrapped pack body, three-wire harness, and connector format make it practical for enclosure-based devices that need a ready-to-install battery module instead of loose cells. For different projects, VTCBATT can support connector matching, wire length adjustment, label customization, protection circuit configuration, sample validation, and factory-direct battery wholesale supply for distributors, brand owners, and equipment manufacturers.







IFR18650HT-2S3P 6.4V 4.5Ah LiFePO4 Battery Pack for High-Temperature Equipment Power
This article summarizes the VTCBATT product specification PDF and translates the engineering data into product-page-ready information for OEM buyers, distributors, and device manufacturers.
Product Overview
The VTCBATT IFR18650HT-2S3P is a 6.4V 4.5Ah cylindrical LiFePO4 rechargeable battery pack. The PDF defines it as a high energy and power cylindrical battery pack manufactured and supplied by VTC Power Co., Ltd. The pack is designed around a 2S3P structure and is intended for equipment that needs a protected rechargeable battery module with connector-ready integration.
Core Electrical Parameters
The nominal capacity is 4.5Ah when discharged at 0.2C to 5.0V, while the minimum capacity is 4.35Ah under the same condition. The nominal voltage is 6.4V. Standard charging uses 0.2C constant current with 7.3V constant voltage and a 45mA end condition. The maximum charge current and maximum discharge current are both listed as 1C, equal to 4.5A.
Pack Size And Structure
The datasheet lists a maximum pack dimension of 20*57.0*133.0mm and a weight of 240g. The product photo and print code show the VTCBATT IFR18650HT-2S3P marking, 6.4V, 4500mAh, and 28.8Wh. The finished assembly includes a protection circuit and a wire harness connector for equipment installation.
Temperature Capability
For charging, the datasheet allows 0.2C from 0 degC to 15 degC, 1C from above 15 degC to 35 degC, and 0.5C from above 35 degC to 60 degC. For discharging, current is derated across the range from -20 degC to 80 degC, with 1C permitted from above 10 degC to 60 degC and 0.5C from above 60 degC to 80 degC.
Cycle Life And Retention
The cycle-life section lists at least 4000 cycles to 70% under 0.5C discharge conditions and at least 3000 cycles to 80% under 1C discharge conditions. The datasheet also specifies room-temperature and high-temperature charge retention and recovery tests, supporting use in long-running rechargeable equipment programs.
Protection Circuit
The electrical characteristics section describes overcharge protection, over-discharge protection, over-current protection, short protection, interior resistance, and normal-operation current consumption. The PCBA BOM lists a HY2122-AB1B protection IC, two DP8205 MOSFETs, resistors, capacitors, and an FR-4 printed circuit board.
Application Fit
Based on the electrical and mechanical parameters, the battery pack is suitable for smart metering, outdoor IoT monitoring, industrial data logging, security panels, GPS tracking, PLC backup modules, smart agriculture sensor nodes, and environmental monitoring stations. Final device selection should follow the current, temperature, enclosure, charging, and safety limits in the datasheet.

Recommended Application Scenarios
The following application images were generated as product-page visuals using the confirmed pack appearance: blue shrink wrap, cylindrical-cell contours, printed IFR18650HT-2S3P marking, three-wire harness, and white connector. The scenes are illustrative B2B use cases and should still be matched against each device current, charging, enclosure, and temperature requirements.
Main Specification Table
The table below keeps only the 10 primary purchase and engineering parameters for quick product-page review. Detailed test procedures, protection thresholds, safety cautions, storage notes, and warranty conditions remain in the original PDF specification.
| Parameter | Specification |
|---|---|
| Model | VTC IFR18650HT-2S3P |
| Battery Type | Cylindrical LiFePO4 Rechargeable Battery Pack |
| Configuration | 2S3P |
| Nominal Voltage | 6.4V |
| Nominal Capacity | 4.5Ah, discharge with 0.2C to 5.0V |
| Minimum Capacity | 4.35Ah, discharge with 0.2C to 5.0V |
| Charge / Discharge Limit | 7.3V max charge voltage; 5.0V discharge cut-off |
| Maximum Current | 1C (4.5A) max charge; 1C (4.5A) max discharge |
| Pack Dimensions / Weight | T*W*L: 20*57.0*133.0mm MAX.; 240g |
| Operating Temperature | Charge: 0~60°C with derating; discharge: -20~80°C with derating |
OEM/ODM Supply Notes
For equipment projects, VTCBATT can support connector matching, wire length adjustment, label customization, pack sampling, protection circuit coordination, and batch supply. The final pack design should be verified against the device charging system, maximum current profile, ambient temperature range, enclosure space, and safety requirements before mass production.










PDF outline and product print-code page showing the finished pack information.
PDF electrical characteristics and PCBA BOM page covering protection circuit details.