Description

The THOR-344762 is a 3.7V 1250mAh lithium polymer (LiPo) battery with connector, sized of T×W×L = 3 × 47 × 64 mm (with PCM). Its 47 × 62 mm form factor works well in portable electronics, custom battery projects, and OEM devices.

As a custom LiPo battery manufacturer, THOR Power can customize cell size, capacity, protection circuit (PCM), connector type, and wire harness configuration to match your product requirements. Contact our engineers for prototype samples and production solutions.

  • 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
Mostly exported overseas, across the US, Europe, Japan & Korea, SE Asia, Latin America and Africa.
Full certification
UN38.3, MSDS, CE, KC, UL, CB, PSE, RoHS.
Global export
US, Europe, Japan & Korea, SE Asia, Latin America, Africa.
End-to-end quality control
From raw material to finished cell.

Factory Photos

Automation Equipment

THOR Power factory — Automation Equipment
THOR Power factory — Automation Equipment

Production Line

THOR Power factory — Production Line
THOR Power factory — Production Line

Testing Equipment

THOR Power factory — Testing Equipment

Warehouse & Certifications

THOR Power factory — Warehouse & Certifications
THOR Power factory — Warehouse & Certifications
ModelTHOR-344762
Battery TypeLithium Polymer (LiPo) pouch cell
Capacity1250 mAh
CertificationsUN38.3 / MSDS (IEC 62133-2, CE, KC on request)
MOQ10 pcs (samples available)
CustomizationSize, capacity, connector, wire length, PCM/BMS, NTC, label

3.7V 1250mAh Lithium Polymer (LiPo) Battery with Connector | THOR-344762

The THOR-344762 is a 1250mAh 3.7V lithium polymer battery (3.4×47×62mm), delivering 4.62Wh at ~20.1g. Thinnest 1250mAh variant at 3.4mm — slim profile for space-constrained designs. One of 2 1250mAh variants — see also THOR-384659 for alternative dimensions. Ideal for tablet backup battery, slim POS terminal cell, digital frame battery, and portable monitor power. Volumetric density: 0.47 Wh/cm³.

Get an Engineering Quote

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

    Battery Specification — THOR-344762

    Mechanical Characteristics

    ModelTHOR-344762
    Cell TypeLithium Polymer (LiPo) pouch cell
    Configuration1S1P (customizable)
    Dimensions (T×W×L)3.4 × 47 × 62 mm (bare cell)
    Dimension ToleranceThickness ±0.2 mm; Width/Length ±0.5 mm
    With PCM BoardLength approx. +2 mm vs bare cell
    WeightApprox. 21 g
    PCM / BMSIncluded (standard)
    NTC ThermistorOptional
    ConnectorPH2.0 / Molex 1.25 (custom available)
    Wire LengthCustomizable
    UN38.3Test Summary available
    Safety Data SheetSDS / MSDS available
    IEC 62133-2Available for selected models
    RoHS / REACHCompliance documents available
    Electrical Specifications
    Nominal Voltage3.7 V
    Rated Capacity1250 mAh
    Energy4.63 Wh
    Charge Voltage4.20 ± 0.03 V
    Standard Charge250 mA (0.2C), CC/CV to 4.20 V
    Charge Cut-off Current0.02C
    Max. Charge Current1.3 A (up to 1C), model-specific
    Discharge Cut-off Voltage3.0 V
    Standard Discharge250 mA (0.2C)
    Max. Continuous Discharge1.3 A (1C), model-specific
    Internal Resistance≤ 70 mΩ (1 kHz, 50% SOC, 25℃)
    Cycle Life≥ 500 cycles, ≥ 80% capacity
    Cycle Test Condition0.5C charge / 0.5C discharge, 3.0-4.2 V, 25 ± 2℃
    Charge Temperature0℃ ~ 45℃
    Discharge Temperature-20℃ ~ 60℃
    Storage Temperature-10℃ ~ 45℃ (≤ 1 month)
    Capacity Retention≥ 90% after 28 days @ 25℃
    NoteHigher discharge-rate designs available upon engineering review
    Protection Circuit (when PCM equipped)
    Overcharge Detection4.28 ± 0.03 V per cell
    Overcharge Release4.08 ± 0.05 V
    Over-discharge Detection2.75 ± 0.05 V
    Over-discharge Release3.00 ± 0.05 V
    Overcurrent ProtectionPer PCM design (2A ~ 5A typical)
    Short-circuit ProtectionYes, auto-recovery

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

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