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

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Description

THOR-501520 provides 100mAh in a short 5 × 15 × 20mm bare-cell envelope. THOR-601120 keeps the same 20mm length and 100mAh capacity but exchanges 4mm of width for 1mm more thickness. THOR-402020 is 1mm thinner at the same capacity, but requires a wider 20 × 20mm footprint. Choose THOR-501520 when 15mm width and 20mm length are the binding mechanical limits.

The 5 × 15 × 20mm value is the nominal bare-cell envelope. The current PCM-equipped drawing is approximately 5 × 15 × 22mm. NTC placement, insulation, lead exit, connector body and wire bend radius can require additional clearance, so verify the production-intent assembly and polarity before enclosure approval.

At 3.7V nominal and 100mAh, THOR-501520 stores 0.37Wh. Actual runtime depends on standby drain, active duty cycle, regulator efficiency, cutoff voltage, temperature and aging. Capacity and geometry do not establish current capability; validate continuous and peak demand with the approved cell, PCM, wire and connector.

THOR-501520 Engineering & Fit Questions

How does THOR-501520 compare with other 100mAh THOR cells?

THOR-501520 uses a 5 × 15 × 20mm envelope. THOR-601120↗ keeps 20mm length but narrows the cell to 11mm by increasing thickness to 6mm, while THOR-402020↗ reduces thickness to 4mm but requires a 20 × 20mm footprint.

Are 5 × 15 × 20mm the finished THOR-501520 dimensions?

No. They are nominal bare-cell dimensions. The current PCM-equipped drawing is approximately 5 × 15 × 22mm, and NTC placement, insulation, connector body, lead exit and wire routing can require more clearance. Confirm the production-intent assembly before enclosure release.

How should runtime and current suitability be checked for THOR-501520?

Use 0.37Wh as the nominal energy starting point, then measure standby drain, active duty cycle, conversion losses, cutoff voltage, temperature and aging effects. Verify continuous and peak demand with the approved PCM, wire and connector before sample approval.

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-501520
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

THOR-501520 3.7V 100mAh LiPo Battery – 5×15×20mm

THOR-501520 is a 3.7V 100mAh LiPo pouch cell with 0.37Wh nominal energy and a compact 5 × 15 × 20mm bare-cell envelope. Its defining feature is the short 15 × 20mm plan area for miniature OEM assemblies where cavity length is tightly constrained. Final pack size and load suitability require validation with the selected PCM, NTC, wire and connector configuration.

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-501520

Mechanical Characteristics

Model	THOR-501520
Cell Type	Lithium Polymer (LiPo) pouch cell
Configuration	1S1P (customizable)
Dimensions (T×W×L)	5 × 15 × 20 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-501520

Miniature Smart Badges & Access Tokens — PrimaryThe short 15 × 20mm footprint can suit rechargeable badge, token or identification electronics when display refresh, radio duty cycle, standby current and the finished-pack envelope are validated.

Compact Personal Safety & Alert ButtonsTHOR-501520 may suit miniature wearable alert devices after radio bursts, indicator loads, charging method, enclosure clearance and the final harness are confirmed.

Small Rechargeable Sensor TagsThe 0.37Wh nominal energy can support low-duty sensor tags or compact monitoring nodes when sleep current, wake frequency, transmit pulses and sample runtime are measured.