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LG ENERGY SOLUTION · 21700 Series
LG 21700-M64T
21700 energy-cell draft for LEV / e-bike battery-pack evaluation
Promotion draft only. The source contains inconsistent maximum-current entries and cycle-test labels; confirm the applicable manufacturer revision before engineering approval. M64T is a separate model, not M52VT or M64.
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MODEL OVERVIEW
LG 21700-M64T — Selection & Sourcing
LG 21700-M64T is a cylindrical rechargeable lithium-ion cell. The supplied promotion draft identifies 22.8Wh nominal energy and 3.54V nominal voltage for LEV (e-bike) applications.
Promotion draft only. The source contains inconsistent maximum-current entries and cycle-test labels; confirm the applicable manufacturer revision before engineering approval. M64T is a separate model, not M52VT or M64.
Source reference: 2025-LSD-MBD-b00026, INR21700M64T, Rev. 0, 2025-10-17; promotion draft, marked non-final. This summary does not replace the approved specification. The supplied draft is not offered as a public PDF download.
TECHNICAL REFERENCE
Specifications & Operating Conditions
Read each value with its test conditions. Confirm the applicable document revision before design approval.
| Model / catalog code | LG 21700-M64T |
|---|---|
| Cell format | 21700 Series |
| Nominal energy | 22.8Wh; CC/CV charge 1250mA to 4.20V, 125mA termination; discharge 1250mA to 2.50V at 25°C; maximum within the first 10 cycles |
| Minimum energy | 22.5Wh under the same measurement conditions |
| Nominal voltage | 3.54V |
| C-rate reference | 1C = 6450mA; test-current basis, not a separately specified rated-capacity claim |
| Standard charge | 1250mA CC/CV to 4.20V; 125mA termination at 25°C |
| Standard discharge | 1250mA to 2.50V at 25°C |
| Charge / discharge voltage limits | 4.20V charge; 2.50V discharge cutoff; refer to usable-cycle conditions |
| Maximum charge current by ambient and cell-surface temperature | 1250mA at 0–10°C; 4000mA at 10–50°C; both temperature conditions apply |
| Maximum discharge current by ambient temperature | 15000mA at 0–35°C; 12500mA at 35–45°C; 9000mA at 45–60°C. Sub-zero entry is ambiguous in the draft and is not assigned a rating here. |
| Maximum-current qualification note | The draft lists 17500mA in the cell-surface table, while its explanatory paragraph discusses 12500mA. No unconditional 17.5A continuous rating is claimed; confirm a corrected revision and all voltage/temperature protections. |
| Operating temperature (ambient) | Charge: −5–50°C; discharge: −20–60°C. These are operating ranges, not permission for unrestricted current at every temperature. |
| BMU cell-surface temperature limits | Control below 50°C during charging and below 70°C during discharging; after a discharge thermal limit is reached, resume only below 50°C. |
| Diameter | 21.15–21.55mm, as specified in the draft drawing |
| Height | Top to bottom: 70.45–70.85mm; shoulder to bottom: 70.00–70.30mm |
| Weight | 74.0 ± 1g, without tube and washer |
| Initial AC impedance | <13mΩ at 1kHz after standard charge |
| Initial DC impedance | <18mΩ; 50% SOC, 6A/1A/6A pulse sequence at 25°C, source section 4.2.2 |
| Cycle-test reference | Recovered energy ≥80% of 22.5Wh at 500 cycles; condition text specifies charge 4000mA to 4.20V / 100mA termination, discharge 7500mA to 2.50V at 25°C; rest until below 30°C and longer than 300s. The heading says 2.7A/7.5A and requires clarification. |
| Declared application | LEV (e-Bike); other applications require manufacturer confirmation |
Specification basis
Technical reference: 2025-LSD-MBD-b00026, INR21700M64T, Rev. 0, 2025-10-17; promotion draft, marked non-final. Promotion draft only. The source contains inconsistent maximum-current entries and cycle-test labels; confirm the applicable manufacturer revision before engineering approval. M64T is a separate model, not M52VT or M64.
APPLICATION REVIEW
What to Check for Your Pack
The supplied draft identifies LEV (e-bike) use. Confirm manufacturer permission before evaluating a different application; use only in an engineered battery pack with protective circuitry.
- 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 usable energy at the working load, cell-holder tolerances, busbar design and the temperature-dependent operating limits. 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 21700-M52VT 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 21700 Series
Compare exact specifications; a similar format does not mean the cells are interchangeable.
