Custom lithium battery packs for device makers · Made in Shenzhen, shipped worldwide

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Medical Device Batteries

Custom lithium battery packs for portable medical devices.

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Custom solutionsFrom your spec to a tested batchCells, BMS, case, charger and label, built around your device.See how we work
Development ProcessFive stages from your brief to batch deliveryBMS DesignProtection, balancing and data to your deviceCell Selection & SourcingLi-ion, LiFePO4 or LiPo from leading brandsPrototyping & SamplesCharged samples you test before the batchOEM / ODMYour spec or our design, under your brandCost & MOQWhat drives price and minimum order
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3.7V 6200MAH Li-ion Battery 1S2P
Custom Lithium Battery Packs

3.7V 6200MAH Li-ion Battery 1S2P

1S2PLi-ionOEM / ODM

This 3.7V 6.2Ah Li-ion battery pack (1S2P) is built by Jetray Battery for portable instruments and test equipment, medical and monitoring devices, power tools and garden tools. Cells, BMS settings, connector, wiring and housing can all be built to your specification.

  • Nominal voltage3.7V
  • Capacity6.2Ah
  • Energy22.9Wh
  • Max discharge2A
  • Fully customizableVoltage, capacity, BMS, housing
  • Documents readyDatasheet, MSDS, UN38.3
  • 24-hour replyDirect from our engineers
Specifications

Technical data

Standard model values. Every parameter below can be adjusted for your project.

Configuration1S2P
Nominal Voltage3.7V
Capacity6.2Ah
Battery Model3.7V 6.2Ah
ChemistryLi-ion
Shipment Voltage3.7–3.8V
Charge Cut-off Voltage4.2V
Discharge Cut-off Voltage2.5V
Internal Resistance≤70mΩ
Max Charge Current2A
Max Continuous Discharge Current2A
WeightAbout 100g
BMS / ProtectionShort-circuit protection
CertificationUL, IEC, CE, UN38.3, etc.

Voltage window 2.5 – 4.2 V

2.5 V cut-off3.7 V nominal4.2 V full
Need different specs?

Send your voltage, capacity, current and size limits. We build packs to your drawing.

Applications

Where it is used

Portable instruments and test equipment
Medical and monitoring devices
Power tools and garden tools
Lighting, security and consumer electronics
Customization & BMS

Built around your equipment

Voltage, capacity, size, BMS and communication can all be changed for OEM / ODM projects. Start from this model or from your own drawing.

FAQ & safety

Common questions

We offer Li-ion (NCM / NCA), LiFePO4 and LTO cells, chosen to match your project needs.

Yes. We provide structural design so the pack fits your housing, connector and mounting points.

Overcharge, over-discharge, overcurrent, short-circuit and temperature protection, SOC / SOH display and communication protocols such as CAN and RS485.

Yes. Charging rates from 0.5C to 2C are possible, depending on the cell specification.

Typically 12–36 months, depending on the project agreement.

Keep them at 50–60% state of charge in a dry, ventilated place between −10 °C and 35 °C.

Safe handling

Heat and damage

Never heat, disassemble or modify the battery, or dispose of it in a fire. Do not pierce, hit, step on or drop it.

If fluid leaks

Do not touch it with bare hands. Rinse eyes, mouth or skin with clean water, see a doctor if needed and contact Jetray after-sales.

Keep it dry

Do not get the battery wet.

Storage conditions

Do not use or store the battery in direct sunlight, high heat or humidity, a hot car, or near heat sources.

OEM & custom packs

Ready to power your next project?

Tell us your voltage, capacity, size and application. Our engineers reply within 24 hours with a design proposal and quotation.

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