IFR18650H 3.2V 1600mAh High-Temperature LiFePO4 Battery
The VTCBATT IFR18650H is a rechargeable 3.2V LiFePO4 18650 battery rated at 1600mAh and 5.12Wh. Its cylindrical blue heat-shrink construction and red/black lead wires support practical integration into compact industrial, metering and outdoor-control electronics.
1. Product Overview
Available engineering datasets cover discharge voltage at 0.2C to 3C, discharge behavior from -40°C to 60°C, cycle comparisons at 25°C, 60°C and 85°C, SOC-OCV mapping, DOD effects and temperature rise. These datasets help equipment designers select load limits, evaluate runtime, develop SOC logic and plan thermal management.
2. Core Electrical Parameters
| Parameter | Specification |
|---|---|
| Model | IFR18650H |
| Battery Type | Rechargeable LiFePO4 cylindrical battery |
| Nominal Voltage | 3.2V |
| Nominal Capacity | 1600mAh |
| Nominal Energy | 5.12Wh |
| Form Factor | 18650 cylindrical cell |
| Termination | Red and black lead wires with insulated terminals |
| Discharge Rate Test Coverage | 0.2C, 0.5C, 1C, 2C and 3C |
| Temperature Test Coverage | Discharge: -40°C to 60°C; cycling: 25°C, 60°C and 85°C |
| Available Performance Data | Charge/discharge, SOC-OCV, DOD cycle life, rate cycle life and temperature rise |
Charge-voltage limits, cut-off voltage, maximum continuous current, internal resistance and protection thresholds are not defined in the available product files. These values should be fixed in the approved cell or pack specification before design release.
3. Cell Size and Structure
The product uses the 18650 cylindrical form factor with blue heat-shrink wrap and red/black lead-wire termination. A dimension drawing and tolerances were not included, so equipment tooling should not rely only on the form-factor name.
| Item | Available information |
|---|---|
| Cell format | 18650 cylindrical |
| Exact diameter / height / tolerance | Not provided; confirm by approved drawing |
| Lead length | Not provided; define per OEM project |
4. Temperature Performance
Discharge profiles span -40°C, -20°C, -10°C, 0°C, 10°C, 25°C and 60°C. Cycle-retention comparisons include 25°C, 60°C and 85°C, providing direct visibility into elevated-temperature aging trends. These are test conditions, not a blanket warranty of operating temperature; application qualification must consider enclosure temperature, duty cycle, cooling and charging strategy.
5. Cycle Life and Retention
Dedicated workbooks compare cycling at different temperatures, different charge/discharge rates and 100%, 80% and 50% depth of discharge. The curves demonstrate how rate, thermal exposure and usable SOC window influence capacity retention over time.
6. Protection and System Design
The photographed cell has lead wires but no protection circuit specification is present. Pack designers should define charging limits, overcharge and over-discharge protection, short-circuit behavior, temperature sensing and connector requirements at system level.
7. Performance Curve Library
SOC-OCV Relationship
Open-circuit voltage mapping across 0.2C, 0.5C and 1C source datasets.
Discharge Curves at Different Rates
Voltage and usable-capacity behavior from 0.2C through 3C.
Discharge Curves at Different Temperatures
Discharge response from -40°C through 60°C.
Cycle Life at Different Temperatures
Capacity-retention comparison at 25°C, 60°C and 85°C.
Cycle Life at Different Rates
Capacity-retention comparison for 1C/1C and 0.5C/1C cycling.
Cycle Life at Different DOD Levels
Capacity-retention comparison at 100%, 80% and 50% DOD.
Temperature Rise at Different Discharge Rates
Thermal rise measured on two samples from 0.2C through 3C.
8. Application Fit
The compact 3.2V cylindrical format is relevant to smart meters, remote monitoring nodes, outdoor lighting controllers, industrial data loggers and similar electronics. Designers should match the cell to the actual load profile and use the supplied curve data during qualification.
9. OEM/ODM Supply
VTCBATT supports lead-length and terminal matching, connector selection, sleeve printing, private labeling, sample development and factory-direct batch supply. Approved drawings and electrical specifications should be signed off before volume production.
