Specify the cell, not only the size
18650 identifies a form factor. Chemistry, rated capacity, current limits and manufacturer documentation still matter.

Illustrative family image; the supplied pack appearance may differ.
A 3Ah pack option in the 18650 family. The completed pack’s permitted current depends on the protection board, wiring and thermal design.
Source review: 4 November 2026 · No inventory or price is implied.
| Parameter | Published reference |
|---|---|
| Nominal voltage | 3.6V |
| Typical capacity | 3Ah |
| Listed energy | 10.8Wh |
| Cell model | Samsung INR18650-30Q |
| Configuration | 1S1P |
For 18650 battery packs, work through these requirements before finalizing the battery choice.
18650 identifies a form factor. Chemistry, rated capacity, current limits and manufacturer documentation still matter.
Series and parallel arrangements affect the operating voltage, capacity and protection architecture.
Check the fit, runtime and load behavior using production-representative equipment and agreed test conditions.
Request the current electrical specification, a mechanical drawing, protection limits and test conditions. Where required, ask for the exact model’s transport and safety documentation. Confirm the report holder, model scope and revision.
A company certificate, a cell report and a finished-pack report cover different things. The documents need to match the product and its intended use.
The published values are an initial reference. Compatibility depends on the operating voltage window, continuous and peak current, charging system, enclosure and application requirements. Share those details for a model-specific review.
Send the reference name and your project specification. The team can confirm the available configuration, sample terms, quantity, price and lead time. No standard MOQ or delivery promise is asserted on this page.
No. Confirm voltage limits, current capability, temperature conditions, dimensions and the pack's validated cell model.
Values taken from Jetray public listings; request the current approved datasheet before design-in.
Source paths may redirect following the corporate website’s reorganization. Ask Jetray for the current approved model sheet when a legacy page has moved.
For 18650 battery packs, the most useful RFQ connects the published reference to the equipment and the project.
Exact cell model, series/parallel arrangement and measured load. Include measured peak duration and the target operating time.
Protection board, leads, thermistor and pack connector. Add the available dimensions, cable direction and the equipment drawing.
State the sample stage, expected quantities, destination market and documents required for review.
Use the collection’s practical guides to prepare a more focused engineering discussion.
Read an S/P configuration and connect cell selection to voltage, capacity, current and the physical pack design.
Read the technical guideWhy cell format and capacity are insufficient selection criteria for OEM battery packs with demanding load profiles.
Read the technical guideBuild a receiving process around approved identity, documentation, dimensions and controlled performance checks.
Read the technical guideShare the load, dimensions and intended use. Ask for a current model specification and a project review.