Customizable LiPo battery connector and wire harness options, with PH 2.0 mm shown for reference

Lithium polymer (LiPo) battery connector polarity guide showing red positive and black negative wires with correct and incorrect connection examples

THOR lithium polymer (LiPo) battery discharge performance comparison with discharge curves and microscopic electrode material images

↓ Download Product Datasheet (PDF)Request a Quote

Description

THOR-602040 provides 500mAh in a narrow 6 × 20 × 40mm bare-cell envelope. THOR-502050 keeps the same 20mm width and capacity with 1mm less thickness but adds 10mm of length. THOR-602530 keeps 6mm thickness and 500mAh but uses a wider, shorter 25 × 30mm footprint. Choose THOR-602040 when 20mm width is the binding constraint and 40mm bare-cell length is available.

The 6 × 20 × 40mm value is the nominal bare-cell envelope. A typical PCM-equipped assembly is approximately 6 × 20 × 42mm, but final length and local clearance depend on PCM placement, insulation, lead exit, connector body, wire routing and bend radius. Confirm the production-intent assembly before tooling.

At 3.7V nominal and 500mAh, THOR-602040 stores 1.85Wh and uses the standard 1S 4.2V full-charge system. Runtime depends on standby drain, duty cycle, conversion efficiency, cutoff voltage, temperature and aging. Continuous and peak-current suitability should be confirmed against the final cell, PCM, wire, connector and device load profile.

THOR-602040 Engineering & Fit Questions

How does THOR-602040 compare with THOR-502050 and THOR-602530?

THOR-602040 uses a 6 × 20 × 40mm envelope. THOR-502050↗ is 1mm thinner at the same width and capacity but 10mm longer. THOR-602530↗ keeps 6mm thickness and 500mAh but uses a wider, shorter 25 × 30mm footprint.

Are 6 × 20 × 40mm the finished THOR-602040 dimensions?

No. They are nominal bare-cell dimensions. A typical PCM-equipped assembly is approximately 6 × 20 × 42mm, but insulation, connector body, lead exit and wire routing can add clearance. Confirm the production-intent assembly before enclosure release.

How should THOR-602040 runtime and load suitability be validated?

Use 1.85Wh as the nominal-energy starting point, then measure standby drain, active duty cycle, pulse demand, conversion losses, cutoff voltage and temperature effects. Confirm continuous and peak-current suitability with the final PCM, wire, connector and device load profile.

Stable 3.7 V nominal output for reliable power delivery
Long cycle life — typically several hundred cycles, cost-efficient
Built-in protection: overcharge, over-discharge, short-circuit
Custom size, capacity, connector & PCM/BMS
UN38.3 / MSDS ready; CE, KC, ROHS on request

Why Choose THOR Power

A vertically integrated lithium battery manufacturer (Dengzhou Xinju New Energy) with the scale and engineering depth to deliver custom LiPo cells reliably at volume.

3 factories, 800+ staff

Source-manufacturer scale — not a trading company.

200+ engineers

R&D led by a chief battery scientist for rapid custom design.

60,000 pouch cells / day

High-volume manufacturing with products exported across the US, Europe, Japan & Korea, SE Asia, Latin America and Africa.

End-to-end quality control

From raw material to finished cell.

Factory Photos

Automation Equipment

Testing Equipment

Warehouse & Certifications

Model	THOR-602040
Battery Type	Lithium Polymer (LiPo) pouch cell
Capacity	500 mAh
Certifications	UN38.3 / MSDS (IEC 62133-2, CE, KC on request)
MOQ	From 10 pcs for samples; production quoted per project
Customization	Size, capacity, connector, wire length, PCM/BMS, NTC, label

3.7V 500mAh Lithium Polymer (LiPo) Battery with Connector | THOR-602040

THOR-602040 is a 3.7V 500mAh LiPo pouch cell with 1.85Wh nominal energy and a narrow 6 × 20 × 40mm bare-cell envelope. Its selection identity is the 20mm width combined with 40mm length and 6mm nominal depth. Typical PCM-equipped length is approximately 42mm; final pack dimensions and load suitability require validation.

Wholesale Pricing (USD)

Order Quantity	Reference Unit Price
10 – 99 pcs	—
100 – 999 pcs	—
1,000 – 9,999 pcs	—
10,000+ pcs	Contact for best price

Reference pricing for this model is being finalised. Talk to a Battery Engineer for a same-day quote.

Prices are for standard configuration reference only. Final pricing may vary by cell size, capacity, connector, wire length, PCM/BMS, label, packaging, certification requirements, and order quantity. Shipping cost is not included. MOQ: from 10 pcs for samples; production quantities are quoted per project.

Get an Engineering Quote

Custom sizes, capacities, connectors & PCM/BMS available. MOQ-friendly. Samples in days.

Battery Specification — THOR-602040

Mechanical Characteristics

Model	THOR-602040
Cell Type	Lithium Polymer (LiPo) pouch cell
Configuration	1S1P (customizable)
Dimensions (T×W×L)	6 × 20 × 40 mm (bare cell)
Dimension Tolerance	Thickness ±0.2 mm; Width/Length ±0.5 mm
With PCM Board	Length approx. +2 mm vs bare cell
Weight	Approx. 10 g
PCM / BMS	Included (standard)
NTC Thermistor	Optional
Connector	PH2.0 / Molex 1.25 (custom available)
Wire Length	Customizable
UN38.3	Test Summary available
Safety Data Sheet	SDS / MSDS available
IEC 62133-2	Available for selected models
RoHS / REACH	Compliance documents available

Electrical Specifications

Nominal Voltage	3.7 V
Rated Capacity	500 mAh
Energy	1.85 Wh
Charge Voltage	4.20 ± 0.03 V
Standard Charge	100 mA (0.2C), CC/CV to 4.20 V
Charge Cut-off Current	0.02C
Max. Charge Current	500 mA (up to 1C), model-specific
Discharge Cut-off Voltage	3.0 V
Standard Discharge	100 mA (0.2C)
Max. Continuous Discharge	500 mA (1C), model-specific
Internal Resistance	≤ 100 mΩ (1 kHz, 50% SOC, 25℃)
Cycle Life	≥ 500 cycles, ≥ 80% capacity
Cycle Test Condition	0.5C charge / 0.5C discharge, 3.0-4.2 V, 25 ± 2℃
Charge Temperature	0℃ ~ 45℃
Discharge Temperature	-20℃ ~ 60℃
Storage Temperature	-10℃ ~ 45℃ (≤ 1 month)
Capacity Retention	≥ 90% after 28 days @ 25℃
Note	Higher discharge-rate designs available upon engineering review

Protection Circuit (when PCM equipped)

Overcharge Detection	4.28 ± 0.03 V per cell
Overcharge Release	4.08 ± 0.05 V
Over-discharge Detection	2.75 ± 0.05 V
Over-discharge Release	3.00 ± 0.05 V
Overcurrent Protection	Per PCM design (2A ~ 5A typical)
Short-circuit Protection	Yes, auto-recovery

Values shown are THOR Power standard specifications for this cell class. Final parameters are confirmed in the engineering datasheet for your configuration.

Typical Applications — THOR-602040

Narrow Handheld Remote & Control Modules — PrimaryThe 20 × 40mm plan area can suit narrow remote-control or handheld modules where width is fixed. Confirm button, display, radio and indicator duty cycles together with finished-pack clearance.

Compact Telemetry & Data-Logger ModulesTHOR-602040 may suit narrow telemetry or data-logging enclosures after standby drain, sampling interval, transmit pulses and connector routing are validated.

Elongated Rechargeable Sensor ControllersThe 1.85Wh nominal energy can support compact sensor controllers designed around a 20mm-wide battery bay when the actual load profile and protected-pack envelope are confirmed.