THOR 501125 3.7V 100mAh lithium polymer battery with PCM protection, red and black lead wires, and 2-pin connector

THOR 501125 3.7V 100mAh LiPo battery dimension drawing showing T×W×L = 5 × 11 × 27 mm (with PCM) and 2-pin connector polarity

THOR 501125 3.7V 100mAh lithium polymer battery specifications with dimensions and connector details

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

Exploded multilayer structure of a LiPo pouch cell showing tabs, pouch film, electrodes, separator, current collectors and insulating layers

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Description

THOR-501125 is the smallest geometry in this micro-cell selection ladder, providing 100mAh in a 5 × 11 × 25mm bare-cell envelope. THOR-501227 adds 30mAh with only 1mm more width and 2mm more length. THOR-501525 reaches 150mAh at the same 5mm thickness, but requires a wider 15mm cavity.

The 5 × 11 × 25mm value is the nominal bare-cell envelope. The current PCM-equipped drawing is approximately 5 × 11 × 27mm. In this size class, PCM placement, insulation, connector height, lead exit and wire bend radius can determine the final cavity, so validate the complete assembly rather than the cell alone.

At 3.7V nominal and 100mAh, THOR-501125 stores 0.37Wh. Runtime depends strongly on standby drain, wake frequency, radio or audio pulses, regulator losses, cutoff voltage, temperature and aging. Validate pulse demand and voltage sag with the actual electronics.

THOR-501125 Engineering & Fit Questions

How do THOR-501125, THOR-501227 and THOR-501525 form a selection ladder?

THOR-501125 is the smallest at 5 × 11 × 25mm and 100mAh. THOR-501227↗ increases capacity to 130mAh in 5 × 12 × 27mm, while THOR-501525↗ reaches 150mAh in a wider 5 × 15 × 25mm envelope.

What is the finished length of a protected THOR-501125 battery?

The nominal bare-cell size is 5 × 11 × 25mm, and the current PCM-equipped drawing is approximately 5 × 11 × 27mm. Connector, insulation, lead exit and wire routing can require more clearance, so use the production-intent assembly for approval.

What electrical checks matter for a 100mAh cell?

Measure standby drain, active duty cycle, pulse magnitude and duration, regulator efficiency, cutoff voltage and charging behavior. A low average current does not guarantee that a short radio or audio peak will stay above the system cutoff voltage.

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-501125
Battery Type	Lithium Polymer (LiPo) pouch cell
Capacity	100 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 100mAh Lithium Polymer (LiPo) Battery with Connector | THOR-501125

THOR-501125 is a 3.7V 100mAh LiPo pouch cell with 0.37Wh nominal energy and a narrow 5 × 11 × 25mm bare-cell envelope. It is the smallest, lowest-capacity geometry in the THOR-501125 / 501227 / 501525 selection ladder, making it useful when cavity width and length take priority over maximum runtime. Final pack integration and pulse-load behavior 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-501125

Mechanical Characteristics

Model	THOR-501125
Cell Type	Lithium Polymer (LiPo) pouch cell
Configuration	1S1P (customizable)
Dimensions (T×W×L)	5 × 11 × 25 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. 3 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	100 mAh
Energy	0.37 Wh
Charge Voltage	4.20 ± 0.03 V
Standard Charge	20 mA (0.2C), CC/CV to 4.20 V
Charge Cut-off Current	0.02C
Max. Charge Current	100 mA (up to 1C), model-specific
Discharge Cut-off Voltage	3.0 V
Standard Discharge	20 mA (0.2C)
Max. Continuous Discharge	100 mA (1C), model-specific
Internal Resistance	≤ 130 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-501125

Miniature Hearable Electronics — PrimaryThe narrow 11 × 25mm footprint can suit compact hearable electronics when the enclosure accepts 5mm nominal cell depth. Confirm pulse load, charging, acoustic layout and the finished battery envelope.

Smart Jewelry & Compact Wearable ModulesTHOR-501125 may suit small wearable accessory modules that prioritize minimum width and length over maximum runtime. Validate standby drain, mechanical protection and connector placement.

Narrow Low-Power Sensor NodesThe cell can support compact sensor nodes with low average demand after wake cycles, radio bursts, cutoff voltage and wire routing are tested.