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  • 3.7V 2100mAh GRP703958 Low temperature battery
  • 3.7V 2100mAh GRP703958 Low temperature battery

3.7V 2100mAh GRP703958 Low temperature battery for Cold Chain Trackers, GPS Trackers, and Heated Wearables

ModelVTC-LP703958
Voltage3.7V
Capacity2100mAh
Max Size (Thickness x Width x Length)7.2X39.5X60mm
Operating Temperature-40℃ to 60℃
Standard Charge Rate0.5C
Standard Discharge Rate1C
Configuration1S1P
Weight44.5g
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3.7V 2100mAh GRP703958 Low temperature lithium ion polymer for Cold Chain Trackers, GPS Trackers, and Heated Wearables

The 3.7V 2100mAh 703958 Low Temperature Lithium Polymer Battery is a high-performance rechargeable LiPo battery manufactured by VTCBATT. Designed with a compact 70 × 39 × 58 mm form factor, it delivers stable voltage output and reliable capacity even in cold environments, operating efficiently at temperatures as low as -40°C. The polymer battery features low internal resistance, consistent discharge performance, and a long cycle life, making it well-suited for GPS trackers, outdoor monitoring devices, smart terminals, portable electronics, and industrial applications. VTCBATT supports bulk supply and customized battery solutions.

Long Cycle Life

Based on 0.5C/1C cycling, the VTCBATT 3.7V 2100mAh GRP703958 Low temperature lipo battery can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.

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Ultra-long Cycle Life
lipo battery Temperature Performance

Temperature Performance

VTCBATT 3.7V 2100mAh GRP703958 Low temperature Lipo battery can be discharged from -40℃ to 60℃.This wide temperature range performance enables the battery to operate in many conditions.

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Customization

VTCBATT can support full customization of the 3.7V 2100mAh GRP703958 Low temperature lipo batteries in different sizes, capacities, connectors, discharge rates, and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized lipo battery proposal.

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Customization

Strict Cell Match

Strict cell match standards in 10mV voltage tolerance, 5mAh capacity tolerance, and 1mΩ to ensure excellent performance of the total lipo battery pack.Furthermore,the PCB with cell balance function can long-lasting power supply without any failure.

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Full Certification & Extended Warranty

VTCBATT 3.7V 2100mAh GRP703958 Low temperature LiPo 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.

Full Certification

VTCBATT 3.7V 2100mAh GRP703958 Low temperature lipo battery 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.

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Ultra Long Warranty

Compared to a normal 12-month warranty, VTCBATT lipo 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
Modern Manufacturing

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.

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Trusted by Global Customers

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.

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Application

Application for 3.7V 2100mAh GRP703958 Low temperature polymer lithium ion battery

Cold chain logistics trackers
Cold chain logistics trackers

Ensure uninterrupted frozen transit data logging using a reliable cold-resistant 703958 1800mAh LiPo battery.

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cold region IoT sensors
cold region IoT sensors

Transmit critical environmental data across sub-zero climates efficiently with a robust 703958 1800mAh LiPo battery.

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medical cold storage monitoring equipment
medical cold storage monitoring equipment

Safeguard sensitive vaccines by maintaining constant alarm readiness via a dependable 703958 1800mAh LiPo battery.

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outdoor GPS trackers
outdoor GPS trackers

Maintain accurate real-time location pinging during harsh winter treks using the 703958 1800mAh LiPo battery.

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outdoor security monitoring terminals
outdoor security monitoring terminals

Guarantee 24/7 perimeter surveillance uptime in freezing weather powered by the 703958 1800mAh LiPo battery.

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portable polar expedition instruments
portable polar expedition instruments

Sustain vital scientific measurements during extreme Arctic expeditions with a specialized 703958 1800mAh LiPo battery.

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winter heated wearables
winter heated wearables

Deliver consistent, lightweight core body heating in sub-zero temperatures using the 703958 1800mAh LiPo battery.

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winter sports action cameras
winter sports action cameras

Capture uninterrupted 4K skiing footage without voltage drops, utilizing a frost-resistant 703958 1800mAh LiPo battery.

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Related Product

GRP703958 3.7V 2100mAh

Exhaustive Technical Master Datasheet

Consolidated from Specification, UN38.3, MSDS, and Low-Temp Lab Reports

1. Physical Specifications & Dimensions

ItemDimension / Value
(T) Cell Thickness (Initial)7.7mm Max
(T) Cell Thickness (After 500 cycles)8.3mm Max
(W) Cell Width39.0mm Max
(H) Cell Height58.0mm Max
Tab SpecificationDimension
(A) Cell Tab Length5 ~ 9 mm
(B) Cell Tab Pitch22 ± 2 mm
(C) Cell Tab Width4.0 ± 0.2 mm
(D) Top Sealant Length4 ± 1 mm

2. Comprehensive Basic Performance

No.ItemSpecificationsNote
1Rated Capacity2100mAh0.2C discharge
2Nominal Capacity2130mAh0.2C discharge
3Min. Capacity2100mAh0.2C discharge
4Weight≈ 38g / 38.53gActual weight may vary slightly
5Initial Impedance≤ 50mΩ3.7V AC 1KHz measured
6Normal Voltage3.7 V–
7Initial Voltage≥ 3.85VAt time of shipment
8Limited Charge Voltage4.2 VVoltage of CC charge to CV charge
9Standard Charging Method0.2C CC to 4.2V, then CV till current < 0.01C–
10Cut-off Voltage3.0 VLoad Voltage when discharge ended
11Standard Charging Current420mA0.2C
12Standard Charging Time6 ~ 7 hours–
13Rapid Charging Current2100mA (1.0C)Charge to 4.2V, CV till current < 0.01C
14Rapid Charging Time1.5 hours–
15Standard Discharging Current420mACC discharge to 3.0V
16Max. Discharging Current2100mA (1.0C)–
17Operating TemperatureCharge: 0~45°C | Discharge: -40 ~ 60°CULTRA-LOW TEMP DESIGN
18Operating Humidity Range≤ 90% RH–

3. Electrochemical & Environmental Characteristics

ItemCriterionTest Method
0.2C Discharge Capacity≥ Nominal CapacityAfter standard charge, rest 5 min, 0.2C discharge to 3.0V
1.0C Discharge Capacity≥ 90% of Nominal CapacityAfter standard charge, rest 5 min, 1.0C discharge to 3.0V
Cycle Life≥ 600 cycles0.2C CC-CV charge to 4.2V, 0.2C discharge to 3.0V. Cycle until capacity < 80%
Self-discharge≥ 85% of Initial CapacityStore for 28 days at 20 ± 5°C, then 0.2C discharge
Constant Temp/HumidityNo explosion/fire/leakage. Capacity ≥ 60%Store 48h at 40±5°C & 90~95%RH, then 1.0C discharge
Vibration TestNo explosion/fire/leakage10Hz~55Hz, 0.38mm/0.19mm amplitude, 30 min per axis
Shock TestNo explosion/fire/leakage100m/s² acceleration, 2100 ± 10 times total

4. Low Temperature Performance Lab Results (-40°C)

Test ConditionCell 1# (mAh)Cell 2# (mAh)Cell 3# (mAh)Average Retention (%)
25°C 0.5C Discharge (Ref)224522022312100.0%
-40°C 0.2C Discharge17221762173077.2%
-40°C 0.5C Discharge11741235119053.3%

5. UN38.3 Safety Test Comprehensive Raw Data

T.1 – T.4: Altitude, Thermal, Vibration, Shock (Sample C1-C10)

Cell No.Initial Mass (g)Initial Volt (V)T1 Mass Loss (%)T2 Volt Loss (%)T3 Volt Loss (%)T4 Volt Loss (%)
C138.5264.1790.010.360.020.02
C238.5274.1750.000.340.000.00
C338.5154.1740.000.430.020.00
C438.5184.1790.010.380.000.02
C538.5254.1740.000.310.000.00
C638.5154.1750.010.340.020.02
C738.5264.1800.000.330.020.00
C838.5194.1790.000.430.000.00
C938.5114.1770.010.410.020.02
C1038.5164.1710.010.380.000.02
T1-T4 SUMMARY: ALL CELLS PASSED (NO LEAKAGE, NO VENTING, NO DISASSEMBLY)

T.5 External Short Circuit (57°C)

No.Peak Temp (°C)Status
C1-C5112.9 ~ 114.3Passed
C6-C10111.9 ~ 114.3Passed

T.6 Crush (at 23°C)

No.Peak Temp (°C)Status
C11-C1523.1 ~ 23.9Passed
C16-C2022.1 ~ 23.2Passed

T.8 Forced Discharge (Sample C21-C40)

All 20 cells (C21 to C40) subjected to forced discharge at ambient temperature.
Result: No disassembly, no fire. STATUS: PASSED.

6. Material Safety & Composition (MSDS)

Chemical NamePercent %CAS No.
Li(NiCoMn)O225% ~ 35%182442-95-1
Graphite (C)15% ~ 20%7782-42-5
PVDF1% ~ 5%24937-79-9
Acetylene Black (SP)0.5% ~ 3%1333-86-4
Aluminum (Al)21% ~ 23%7429-90-5
Copper (Cu)10% ~ 11%7440-50-8
LiPF6 (Electrolyte)10% ~ 15%21324-40-3

Hazard Summary:

  • Ingestion: Content of open battery causes serious burns.
  • Inhalation: Fumes irritate respiratory system.
  • Skin/Eyes: Electrolyte is corrosive to ocular tissues and skin.
  • Explosion: Risk above 60°C or when exposed to fire.

UN No: 3480 / 3481 Class 9

7. Storage & Safety Guidelines

Storage Environment Requirements:

  • Short term (< 1 month): -20°C ~ +45°C, 90% RH Max
  • Long term (> 3 months): -10°C ~ +45°C, 90% RH Max
  • Recommended: 15°C ~ 35°C, 85% RH Max (Voltage: 3.6V ~ 3.9V)

Critical Warnings:

  • Do not reverse polarity or connect directly to electrical outlets.
  • Do not solder directly to the battery or pierce with nails.
  • Avoid storage with metal objects (necklaces, hairpins) to prevent short circuits.

© 2024 VTC Power Co., Ltd. Technical Department. All Data Validated by Lab Reports Ref No. 18270BC40131901 & 18270BC40131904.

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