Unprotected 21700 cylindrical lithium-ion cell intended as an input to engineered battery packs
Power & Energy · High-power cylindrical lithium-ion cell
INR-21700-P42A
A 4.2 Ah high-power cell with an unusually explicit manufacturer warning about unauthorized retail channels.
9 known suppliers in this product family.
Rechargeable cells, smart packs and custom battery suppliers relevant to mobile and field robots. The list is bounded to the current RCI manufacturer-directory universe and separates exact-model audited suppliers from confirmed product-line suppliers.
EXACT-MODEL AUDITED
5 suppliers
RRC power solutions · Inspired Energy · Molicel · Ultralife · Inventus Power
PRODUCT-LINE CONFIRMED
4 suppliers
Green Cubes Technology · Bren-Tronics · Accutronics · Alexander Battery Technologies
This is a bounded discovery set, not a claim to enumerate every company worldwide. Open the full supplier landscape and official routes →
What this record can support today.
Coverage is computed from published, non-unknown fields. It measures the record—not product quality—and makes missing procurement evidence explicit.
Engineering field coverage64%
7 of 11 selected fields published
- Official product sourcepublished
- Lifecycle statepublished
- Mechanical dimensions / mass / mountingpublished
- Environmental operating limitsmissing
- Capacity / energypublished
- Voltage boundarypublished
- Continuous / pulse currentpublished
- Cycle-life conditionmissing
- Charging requirementspublished
- Connector / contact definitionmissing
- Protection / BMS boundarymissing
Procurement field coverage23%
3 of 13 selected fields published
- Official product / sales routepublished
- Lifecycle statepublished
- Exact orderable SKU / part numbermissing
- Price with region, currency and quantitymissing
- Lead time with check datemissing
- Commercial availability / stock statemissing
- Minimum order quantitymissing
- Authorized distributor / sales channelmissing
- CAD / STEP / interface drawingmissing
- Certification with identifierpublished
- MTBF / failure / reliability datamissing
- Warranty termsmissing
- PCN / EOL / replacement noticemissing
Coverage measures whether a selected public field is present with non-U evidence. It is not a product score, compatibility result, certification, availability confirmation or procurement recommendation. Download the complete readiness coverage JSON →
1 bounded physical-evidence record.
Publisher independence, identity precision and measurement scope vary by row. Results remain bounded by the disclosed specimen, setup, workload and metric; an inconclusive mapping is evidence associated with the catalog model, not verification of a manufacturer claim.
| Measured result | Conditions | Claim mapping | Source |
|---|---|---|---|
| Independent cell-characterization datasetindependent_characterization_dataset | 45 cells screened; 12 cells characterized at 5°C, 25°C and 40°CPhase 1 measured capacity and pulse resistance at 25°C. Phase 2 applied constant-discharge, high-C-rate pulse/GITT and impedance tests to 12 selected cells at all three temperatures. | supportedThe catalog claim already carries a qualified external V source with its original condition and location. | High-power lithium-ion battery characterization dataset for stochastic battery modeling ↗Methods and Figures 1–2: P42A screening and three-temperature characterization protocol Checked 2026-08-10 |
Reported values, conditions attached.
Evidence state describes the claim—not the prestige of the company or document.
| Claim | Reported value | Condition / boundary | State | Source |
|---|---|---|---|---|
| Nominal voltagenominal_voltage | 3.6 V | Cell nominal value. | M · Manufacturer claimed | Molicel INR-21700-P42A product page ↗Electrical, gravimetric and certification summary Checked 2026-08-10 |
| Typical capacitycapacity | 4.2 Ah | Datasheet test condition governs the value. | M · Manufacturer claimed | Molicel INR-21700-P42A Datasheet ↗Electrical characteristics, dimensions, mass and discharge limit · V4-80092 Checked 2026-08-10 |
| Typical energyenergy | 15.5 Wh | Manufacturer value, not usable pack energy. | M · Manufacturer claimed | Molicel INR-21700-P42A product page ↗Electrical, gravimetric and certification summary Checked 2026-08-10 |
| Maximum continuous discharge currentmax_discharge | 45 A | Cell-level limit under datasheet conditions; pack thermal design and protection remain required. | M · Manufacturer claimed | Molicel INR-21700-P42A Datasheet ↗Electrical characteristics, dimensions, mass and discharge limit · V4-80092 Checked 2026-08-10 |
| Maximum massmass | 70 g | Datasheet value. | M · Manufacturer claimed | Molicel INR-21700-P42A Datasheet ↗Electrical characteristics, dimensions, mass and discharge limit · V4-80092 Checked 2026-08-10 |
| Gravimetric energy densityspecific_energy | 230 Wh/kg | Manufacturer product-page value. | M · Manufacturer claimed | Molicel INR-21700-P42A product page ↗Electrical, gravimetric and certification summary Checked 2026-08-10 |
| Listed documentationcertification | UL, UN, IEC and SDS documents listed | Confirm exact certificate and revision for transport or compliance work. | M · Manufacturer claimed | Molicel INR-21700-P42A product page ↗Electrical, gravimetric and certification summary Checked 2026-08-10 |
| Supply-chain warningsupply_chain | Unauthorized European retail units identified as counterfeit by Molicel | Manufacturer statement dated 2025-11-17; buy through authorized channels and verify traceability. | M · Manufacturer claimed | Molicel Counterfeit Certification and Product Statement ↗Unauthorized-channel warning for European retail markets Checked 2026-08-10 |
| Pack communicationcommunication | Not published in cited specification | RCI checked the cited official specification on the verification date.A bare cylindrical cell has no pack-level communication or protection interface. | U · Unknown | Molicel INR-21700-P42A Datasheet ↗Electrical characteristics, dimensions, mass and discharge limit · V4-80092 Checked 2026-08-10 |
| Independent cell-characterization datasetindependent_characterization_dataset | 45 cells screened; 12 cells characterized at 5°C, 25°C and 40°C | Phase 1 measured capacity and pulse resistance at 25°C. Phase 2 applied constant-discharge, high-C-rate pulse/GITT and impedance tests to 12 selected cells at all three temperatures.This verifies the disclosed dataset and test scope; it does not certify the manufacturer’s 45 A limit, pack-level behavior or all production cells. | V · Independently verified | High-power lithium-ion battery characterization dataset for stochastic battery modeling ↗Methods and Figures 1–2: P42A screening and three-temperature characterization protocol Checked 2026-08-10 |
Known limits
What this record does not prove.
- This cell is not a complete robot battery pack.
- The 45 A figure requires pack-level electrical, thermal and safety engineering.
- Supply-channel traceability is material because the manufacturer has published a counterfeit warning.