Cell model coverage
Complete cylindrical cell portfolio: 18650, 21700, 26700, 32700 and custom options.
Explore models -> Cylindrical cell supply
Cylindrical lithium cell supplier — verified and ready to ship worldwide.
RYD Energy supplies 18650, 21700, 26700 and custom cylindrical lithium cells with model specifications, QC grading records, compliance files and export support.
Real cell models
QC grading & matching
UN38.3 / MSDS support
OEM/ODM packaging
QC & grading
IR testing, OCV, DCIR matching and capacity grading with batch-level records.
Learn about quality ->
Export documentation
UN38.3, MSDS/SDS, CCC, CB and other compliance files for global shipments.
View certifications ->300,000
Cells per day
Partner-factory output capacity
27+
Automated lines
Cylindrical cell production lines
UN38.3 / MSDS
Shipment documents
Export-ready compliance files
100%
Capacity grading
IR, OCV and DCIR matching
OEM / ODM
Brand label & packaging
Laser code and customization support
18650 · NCM
Ø18 × 65 mm In mass production
| Model | Type | Chemistry | Capacity | Voltage | Max discharge | Cycle life | Weight |
|---|---|---|---|---|---|---|---|
| INR18650-26D | High-power | NCM | 2600mAh | 3.6V | 3C | 300~600 | ≤47.5g |
| INR18650-30E | ESS | NCM | 3000mAh | 3.6V | 3C | 500~1000 | ≤48g |
| INR18650-35E | ESS | NCM | 3500mAh | 3.6V | 3C | 500~1000 | ≤49.5g |
| INR18650-20P | High C-rate | NCM | 2000mAh | 3.6V | 10C | 300~600 | ≤45.5g |
Certifications & compliance
We provide complete and up-to-date certification files to support global shipments and customer audits.
View all certificates ->
Quality process
Every cell goes through strict quality control and traceability.
01
Incoming Materials
Supplier screening, material inspection and COA review.
02
Core Manufacturing
Mixing, coating, calendering, slitting and drying.
03
Cell Assembly
Winding, insertion, welding and case sealing.
04
Formation & Aging
Capacity activation, aging and data recording.
05
Grading & Sorting
Capacity, DCIR and OCV matching by batch.
06
Final QC
Appearance, dimension, safety and shipment checks.
07
Packaging & Shipment
Labeling, export files and dangerous-goods packing.
Cells trusted across industries
FAQ
Sourcing questions, answered
What is your minimum order quantity (MOQ)?
MOQ depends on the form factor, chemistry and whether you need custom OEM labeling. Send your target models and quantity in an RFQ and we will confirm the MOQ and price.
Do you offer OEM / private-label (own-brand) cells?
Yes. We supply cells under your own brand with custom wrap, printing, capacity binning and packaging. For OEM orders we can also arrange certificates listing your brand.
Which certifications and documents do you provide?
UN38.3 test summaries and MSDS/SDS travel with every cell. Cell-safety certificates (CCC, CB, BIS, PSE) are manufacturer-issued per model, and CE / RoHS compliance files are available. Full files are shared after a qualified RFQ.
What is the typical lead time?
Lead time depends on quantity, chemistry and whether the order is OEM. As a baseline, the cell production cycle on our partner factory lines is 25–28 days from electrode processing to packed cells. We confirm an exact lead time together with your quotation.
What testing is done before cells are shipped?
Every cell passes 100% voltage and internal-resistance inspection. Batches are aged for 6 days at 45°C plus several days at room temperature before grading, then matched to ≤40mAh capacity difference, ≤5–10mV voltage difference and ≤3mΩ internal-resistance difference. Shipments also undergo a one-hour transport-vibration simulation before release.
Which payment methods do you accept?
Bank transfer (T/T) is the standard for production orders; PayPal is available for smaller amounts such as samples. Exact terms are confirmed with your quotation.
What do the D, E, P and C model suffixes mean?
The suffix encodes the cell type: D = drive (high-power discharge), E = energy storage (long cycle life), P = high C-rate, C = 3C digital devices, T = ultra-high-rate drone cells, MF = high-safety LMFP-blend cathode, PL = low-temperature. The number encodes capacity (e.g. -50 = 5000mAh).
How are lithium cells shipped internationally?
Lithium cells are regulated dangerous goods. We ship by sea, air or overseas warehouse with the correct UN38.3 and dangerous-goods documentation for your destination and shipping method.
Can I get datasheets and samples before ordering?
Yes. Submit an RFQ with your form factor, chemistry, capacity and quantity and we will provide the datasheet, certification coverage and a quotation. Samples can be arranged for qualified projects.
Ready for shipment
Request a datasheet, wholesale price or custom OEM cell proposal.
Tell us your form factor, chemistry, capacity and quantity. We check certification coverage and shipping options before quoting.
Request a Quote