Lithium Polymer Slim 503738 3.85V 830mAh High‐Voltage LiPo Battery Cell

Nominal Voltage
3.85V

Nominal Capacity
830mAh

Nominal Capacity
3.196Wh

Lithium Polymer Battery

3.85V 830mAh LiPo Battery

Reliable High-Voltage Performance

Built around the slim 503738 LiPo cell (3.85 V, 830 mAh) with an integrated protection board supporting 1C continuous and 2C peak discharge, plus a 10 K NTC thermistor for precise temperature monitoring. The UL1571/28 AWG wire harness (green NTC lead, black negative, red positive) ensures safe, low-resistance connections for IoT devices, wearables, and other high-voltage applications.

Himax Factory-Direct Wholesale & Full Customization

Leverage volume pricing on bulk LiPo orders straight from our factory and tailor every aspect to your project: adjust protection C-rates, thermistor specifications, wire-out configurations, labeling, and packaging. Ideal for OEMs and contract manufacturers seeking flexible, high-quality battery solutions.

Specifications

OEM/ODM Rechargeable Li-ion Polymer 3.85V 830mAh Customized Lipo Battery Pack
Nominal Voltage
3.85V
Nominal Capacity
830mAh
Energy
3.196Wh
Charge Voltage
4.4V
Discharge cut-off voltage
3.0V
Charge Method
CC/CV
Standard Charge Current
166mA
Max. Charge Current
415mA
Standard Discharge Current
166mA
Max. Continues Discharge current
830mA
Cycle Life
300 times
Dimension
Max 5.2*37.5*41.0mm
Weight
Approx.14g
Storage Temperature
0°C~45°C

Frequently Asked Questions

Himax Battery, as a professional wholesale battery manufacturer, 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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