Ultra-Compact 351725 3.7V 120mAh LiPo Battery Cell for Wearables & IoT Devices

Nominal Voltage
3.7V

Nominal Capacity
120mAh

Nominal Capacity
0.444Wh

Lithium Polymer Battery

3.7V 120mAh LiPo Battery

Micro Power for Wearables & IoT

Premium 351725 LiPo cell delivers 3.7 V/120 mAh with an integrated protection board supporting 1C continuous and 2C peak discharge. Equipped with a DF57AH-2S plug and UL3302 AWG30 wires, it ensures secure, low-profile connections ideal for wearables, medical sensors, and compact electronics.

Himax Factory-Direct Wholesale & Custom OEM

Benefit from volume pricing on bulk 351725 LiPo orders straight from our factory, plus full customization of C-rate settings, connector types, wire lengths, labeling, and packaging—perfect for OEMs and contract manufacturers seeking flexible, high-quality LiPo solutions.

Specifications

Factory Price Rechargeable Pouch Cells LCO Battery Pack LiPo 3.7V 120mAh for Wearable Device
Nominal Voltage
3.7V
Nominal Capacity
120mAh
Energy
0.444Wh
Charge Voltage
4.2V
Discharge cut-off voltage
3.0V
Charge Method
CC/CV
Standard Charge Current
0.2C
Max. Charge Current
1.0C
Standard Discharge Current
0.2C
Max. Continues Discharge current
1.0C
Cycle Life
300 times
Dimension
Max 3.5*17.5*26mm
Weight
Approx.3.2g
Storage Temperature
0°C~45°C

Frequently Asked Questions

Himax Battery, as a professional wholesale battery factory, offers a wide range of lithium ion batteries, lithium iron phosphate batteries, nickel metal hydride batteries, and Lipo batteries to meet your different needs with the best ex-factory price and thoughtful customized service.
1. What is a LiPo (Lithium-Polymer) battery and how does it work?
LiPo batteries are rechargeable cells with a polymer electrolyte, offering high energy density and a nominal voltage of 3.7 V per cell (fully charged at 4.2 V and minimum safe at 3.0 V). They’re often built in series (S) and parallel (P) configurations—e.g. a “2S2P” pack uses two cells in series for higher voltage, each duplicated in parallel for greater capacity.
2. How do I safely charge a LiPo battery?
Temperature & Rate – Always charge within 0 °C to 50 °C and never exceed a 1C charge rate (i.e. 1× the pack’s capacity in amps). If you’re unsure of the safe rate, default to 1C to minimize fire risk. Supervision & Environment – Never leave a LiPo unattended while charging; use a LiPo-safe bag or fire-resistant enclosure, and avoid charging inside vehicles or near flammable materials.
3. What’s the best way to store LiPo batteries long-term?
Storage Voltage – Keep at 40–60 % state of charge (roughly 3.8–3.9 V per cell). Storing fully charged or fully depleted cells for weeks can degrade capacity and reduce lifespan. Safety Precautions – Place packs in fire-resistant containers or LiPo bags, and store in a cool, dry area away from direct sunlight or combustible materials.
4. How can I prolong the cycle life of my LiPo batteries?
Usage & Replacement – Expect a gradual performance drop of about 3.8 % over the first 100 cycles, and plan to replace packs after 200–300 full cycles or sooner if you see swelling or capacity loss. OEM Quality Matters – Choosing high-precision, matched-cell packs with robust protection boards and thermistors from reputable factories—like Himax with its advanced BMS balancing and tight cell tolerances—can significantly extend overall battery life.
5. Where can I purchase reliable, customizable LiPo battery packs?
For volume pricing, fast lead-times and full OEM flexibility—voltage, capacity, C-rates, connector types, wire-outs and labeling—factory-direct suppliers such as Himax are top choices. Himax’s LiPo division supports low-MOQ wholesale orders and custom engineering to fit aerospace, drone, wearable or IoT applications.

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Himax Battery is a professional lithium battery manufacturing factory near you we provide free customized battery solutions.

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