GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell (5×37×59mm)

Grade-A GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell (5×37×59mm) (3.7V, 1200mAh) pouch cell engineered for Industrial handheld PDA terminals, cellular IoT routers, GPS asset locators, and robotic inspection devices with ultra-low IR, optional PCM circuit, and UN38.3 documentation where applicable.

B2B Engineering Review & Pricing

Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.

✔ Response target: Target response within 12 business hours during business hours; timing varies by inquiry complexity and working hours.
✔ Typical Lead Time: 7–10 business days for prototypes; 15–20 business days for mass production after final specification approval. Final timing is confirmed after tooling, testing, and order review.
✔ Shipping documentation: Applicable UN38.3 test documentation, MSDS/SDS, CE and Class 9 dangerous-goods requirements are confirmed per selected configuration and shipment.

Product Details

Direct Answer / Engineering Summary

The GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell (5×37×59mm) is an ultra-slim, high-density pouch cell providing a verified 3.7V nominal operating voltage and 1200mAh rated capacity (4.44Wh energy content). With an optimized form factor measuring 5.0×37.0×59.0mm and a calibrated weight of approx. 25g, this cell achieves an internal AC resistance of ≤ 35 mΩ, continuous discharge rates up to 1.0C (1.2A), and peak pulse loads of 2.0C (2.4A ≤ 5s). Widely integrated into GPS asset tracking devices, wireless telemetry sensors, and portable industrial instrumentation, engineers should ensure the charging IC terminates charge precisely at 4.20V ± 0.02V in standard CC/CV mode.

Engineering Overview

Product Overview

The GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell is specifically optimized for applications demanding an ultra-thin 5.0mm vertical profile alongside robust cycle endurance. Built with premium electrode coatings and automated pouch vacuum sealing, this cell provides stable power delivery and exceptional thermal dissipation across rigorous operating duty cycles. Custom assembly options include pre-welded safety circuit modules (protecting against over-charge, over-discharge, short-circuits, and thermal runaway), 26/28AWG lead wires, and polarized locking connectors.

Quick Reference

Product Specifications

Feature / Attribute Technical Specification
Battery Chemistry Lithium Cobalt Oxide / NCM Polymer (LiPo Pouch Cell)
Nominal Voltage & Capacity 3.7V / 1200mAh (4.44Wh)
Physical Dimensions & Weight 5.0 ± 0.3 mm × 37.0 ± 0.5 mm × 59.0 ± 0.5 mm / Approx. 25.0g ± 1.5g
Continuous Discharge Rating 1.0C (1.2A continuous discharge)
Peak Pulse Discharge 2.0C (2.4A pulse ≤ 5s)
Target Applications GPS asset trackers, wireless telemetry nodes, industrial handheld PDAs, and portable testing equipment
Standard Terminals Bare nickel tabs / optional PCM with JST, Molex, or solder leads
Service Life / Endurance ≥ 500–800 cycles (@ 80% DoD, 25°C, 0.5C/0.5C)
Engineering Data

Technical Specifications

Parameter Value Test Conditions & Engineering Tolerances
Nominal Operating Voltage 3.7V Standard measurement @ 25°C, 0.2C rate
Upper Voltage / Cutoff 4.20V ± 0.02V (CC/CV mode) Standard regulation tolerance ±0.02V
Discharge Lower Cutoff 3.00V ± 0.03V Safety lower discharge voltage limit
Internal AC Resistance (1kHz) ≤ 35 mΩ 1kHz AC test @ 25°C fully charged state
Cell Consistency Screening ΔV ≤ 3mV | ΔR ≤ 1.5mΩ Pre-assembly automated barcode sorting SOP
Standard Charge Current 0.2C–0.5C (240mA–600mA) / Max 1.0C (1200mA) CC/CV charging to 4.20V cutoff
Operating Temperature Range Charge: 0~45°C | Discharge: -10~55°C Storage: 15~25°C (60% SoC storage)
Engineering Validation

Equipment Compatibility & Engineering Fit Check

Before deploying GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell (5×37×59mm), verify these verified electrical and mechanical boundary requirements:

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Voltage & Charge Cutoff: Nominal 3.7V (charging CC/CV cutoff at 4.2V); confirm charger algorithm strictly matches this chemistry.
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Capacity & Energy Budget: Rated at 1200mAh; verify system run-time calculations under planned discharge currents.
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Physical Envelope: Specified at 5×37×59mm (±0.3mm); allow expansion clearance and wire bend radius inside the device compartment.
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Cycle Reliability: Verified for ≥ 500–800 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) under controlled DoD and thermal management.
💡 Custom Engineering Fit: Contact our Shenzhen engineering team to verify CAD models, custom wire leads, or system integration specs for this product.
Operational Suitability

Operational Boundary Conditions

✔ Recommended Fit & Use Cases:

  • Electronic devices and OEM packs matched with 3.7V / 1200mAh power curves.
  • Commercial designs requiring high volumetric energy density and predictable discharge curves.
  • Projects requiring batch consistency with automated barcode impedance sorting.

⚠ Operational Constraints & Limits:

  • Do not discharge below minimum cutoff voltage or charge beyond 4.2V.
  • Maintain operational surface temperature within -20°C to +60°C discharge (0°C to +45°C charge).
  • Ensure connector polarity and pin assignment match system schematics prior to initial power-up.
First-Party Standards

First-Party Manufacturing SOP & Export Compliance

🏭 Automated Grading & Matching Cells classified via automated OCV/ACIR sorting (ΔV ≤ 2–3mV, ΔR ≤ 1.2mΩ) for tight electrochemical balance.
🔬 Joint Integrity & Testing Laser or ultrasonic busbar/tab welding with destructive pull test validation ≥ 5.0–8.0 kgf per terminal.
📦 Full Cycle Aging Verification 100% full charge-discharge cycle screening and thermal imaging prior to warehouse dispatch.
🌐 Export & Regulatory Clearance Supplied with certified UN38.3 test summaries, MSDS, 1.2m drop reports, and Class 9 DG shipping documentation.
Turnaround: 7–10 days prototypes; 15–20 days mass production per custom tooling requirements. View Verified Manufacturing Equipment & Testing Facility →

⚙ Engineering FAQ & B2B Procurement Specifications

Can GEB 503759 3.7V 1200mAh Lithium Polymer (LiPo) Battery Cell (5×37×59mm) be supplied with a pre-installed PCM, NTC thermistor, and wire connector?
Yes. While supplied as a bare Grade-A cell by default, GEB provides turnkey custom termination including Seiko/ichi-grade protection circuit modules (PCM), 10kΩ/100kΩ NTC thermistor leads, and genuine JST, Molex, or custom wire harnesses.
How does GEB ensure batch consistency for multi-cell series/parallel pack assembly?
Every production batch undergoes 100% automated OCV, AC internal resistance (1kHz ACIR), and capacity grading so cells shipped in the same lot maintain tight voltage and impedance matching.
Does GEB provide UN38.3 test summaries, MSDS, and Class 9 dangerous goods export compliance?
Yes. General Electronics Technology (GEB) supplies complete first-party compliance documentation including UN38.3 test summaries, 1.2m drop test reports, MSDS/SDS sheets, and certified IATA/IMDG Class 9 dangerous goods packaging.
What is the turnaround time and MOQ for custom cell terminations or pack assembly?
Standard bare cells or custom PCM/connector prototypes ship within 7 to 10 business days after drawing confirmation, with mass production turnaround of 15 to 20 business days.

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