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LG ENERGY SOLUTION · 21700 Series
LG 21700-M52V
21700 energy cell with temperature-dependent current limits
The supplied Rev. 3 promotion specification removed nominal energy. Its 1C = 5A test basis must not be presented as a guaranteed nominal capacity. M52V and M52VT documents are not automatically interchangeable.
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MODEL OVERVIEW
LG 21700-M52V — Selection & Sourcing
LG INR21700 M52V has a minimum energy specification of 18.34Wh at 3.69V nominal voltage in the supplied Rev. 3 document. Energy is measured after a 1.5A charge to 4.2V with 50mA termination, followed by a 1A discharge to 2.5V at 25°C. The 4.1–2.85V cycle-test window is different from that energy test and should be kept separate in pack comparisons.
For a 21700 battery pack, share the series and parallel arrangement, continuous load and charging schedule. Check cell temperatures under the repeated duty cycle as well as brief peaks. This gives your engineering team a useful basis for comparing models and setting the sample qualification plan.
BK Energy can discuss LG 21700-M52V 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 INR21700 M52V |
|---|---|
| Minimum energy | 18.34Wh; 1A discharge to 2.5V after the specified energy-test charge |
| Nominal voltage | 3.69V |
| Test-current basis | 1C = 5000mA; not a nominal capacity guarantee |
| Standard charge / energy-test charge | 1.5A CC-CV to 4.2V; standard termination 250mA; energy-test termination 50mA |
| Maximum charge current by ambient | 0–25°C: 1.5A; 25–45°C: 3.5A |
| Maximum full-discharge current by ambient | −20–10°C: 2.5A; 10–25°C: 15A; 25–55°C: 7.5A |
| Temperature limits | Charge ambient 0–45°C / surface 50°C; discharge ambient −20–55°C / surface 70°C |
| Dimensions | Diameter ≤21.15mm; height ≤70.60mm |
| Non-tubing weight | 67.4 ± 1g |
| AC / DC resistance | AC 14.5 ± 6mΩ at 1kHz; DC 24 ± 6mΩ at 50% SOC, 0.5C for 10s, 25°C, excluding leads |
| Cycle reference | ≥86% initial energy after 500 cycles, under the specified test |
| Cycle-test conditions | 1.5A charge to 4.1V / 250mA termination; 10-minute rest; 2.5A discharge to 2.85V; 20-minute rest; 25°C |
Specification basis
Supplied LG Energy Solution INR21700 M52V promotion specification 2021-LSD-MBD-b00034, Rev. 3, 2023-09-08. Promotion data is not a final engineering release. Confirm current limits and revision for the offered lot.
APPLICATION REVIEW
What to Check for Your Pack
For these project types, compare usable energy at the working load, cell-holder tolerances, busbar design and the temperature-dependent operating limits.
- 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-M52V 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.
