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LG ENERGY SOLUTION · 18650 Series
LG 18650-M26
2600mAh 18650 cell with documented charge and discharge conditions
Reference: INR18650 M26, LRB-PS-CY2600-M26, Rev. 0. Confirm the offered production revision before qualification.
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MODEL OVERVIEW
LG 18650-M26 — Selection & Sourcing
LG INR18650 M26 is a 3.65V cylindrical cell specified at 2600mAh nominal and 2500mAh minimum. Its standard capacity test uses a 1250mA CC-CV charge to 4.2V, a 50mA termination current and a 500mA discharge to 2.75V at 25 ± 2°C. Match those conditions when comparing capacity or designing an acceptance test; higher discharge loads and a narrower voltage window change usable energy.
For an OEM battery pack, provide the series and parallel arrangement, continuous load, peak duration and charging schedule. That information makes it easier to compare usable energy, thermal behavior and the required protection settings. Qualification should reflect the finished equipment rather than a single headline rating.
BK Energy can discuss LG 18650-M26 wholesale sourcing with your purchasing team. Include the sample quantity, expected production volume, delivery destination and documents needed for supplier approval so the quotation addresses both technical and commercial requirements.
TECHNICAL REFERENCE
Specifications & Operating Conditions
Read each value with its test conditions. Confirm the applicable document revision before design approval.
| Model | LG INR18650 M26 |
|---|---|
| Nominal / minimum capacity | 2600 / 2500 mAh |
| Nominal voltage | 3.65V |
| Standard charge | 1250mA CC-CV; 4.2V; terminate at 50mA; 25 ± 2°C |
| Maximum charge current | 2500mA; charging ambient 0–45°C |
| Standard discharge | 500mA to 2.75V |
| Maximum discharge current | 10A; observe the specified 75°C cell-temperature limit at maximum room-temperature discharge |
| Discharge ambient | −20 to 60°C |
| Dimensions | Diameter ≤18.4mm; height 65.0 ± 0.2mm |
| Weight | Approximately 44g |
| Initial AC resistance | ≤60mΩ at 1kHz after standard charge |
| Cycle reference | After 500 cycles: ≥70% of minimum capacity at the 501st capacity measurement |
| Cycle conditions | 1250mA charge to 4.2V / 125mA termination; 2500mA discharge to 3.0V; 30-minute rests. Capacity verification uses standard discharge. |
Specification basis
Summarized from the supplied LG Chem INR18650 M26 specification, LRB-PS-CY2600-M26, Rev. 0, 2015-04-28. This historical reference is not confirmation of the specification or certification of an offered lot. The supplied document is not redistributed here.
APPLICATION REVIEW
What to Check for Your Pack
For these project types, compare the continuous load, repeated peaks, charger settings and measured pack temperatures with the exact cell revision.
- Energy and load: usable energy, continuous current, peak duration and charging opportunities.
- Mechanical and thermal fit: the exact drawing, connections, enclosure temperature and cooling arrangement.
- Qualification: a test plan based on the finished equipment, including its protection settings and required approvals.
PROCUREMENT DOCUMENTS
Datasheet, Traceability & Certificates
Ask for the specification and drawing that match the offered lot. If your project needs a UN 38.3 test summary, SDS or a particular cell certificate, include that requirement in the enquiry.
BUYER QUESTIONS
Before You Order
Is this cell suitable for my application?
For these project types, compare the continuous load, repeated peaks, charger settings and measured pack temperatures with the exact cell revision. Application names on this page are evaluation starting points, not a claim that an OEM has approved this exact cell.
Can I get the LG 18650-M26 datasheet?
Yes—send the complete model code and your project requirements. We will review the matching specification and available documentation with you. Any preliminary values should be confirmed before production approval.
What are the wholesale price, MOQ and lead time?
These are quoted for the requested model, quantity, available lot and destination. Send sample demand and expected production volume so the offer can address your schedule.
Which documents should accompany the order?
Ask for the applicable specification revision, lot identification, SDS and UN 38.3 test summary, plus any model-specific certificates required for your market. Cell documents do not replace finished-pack or equipment approval.
Compare Other 18650 Series
Compare exact specifications; a similar format does not mean the cells are interchangeable.
