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LG ENERGY SOLUTION · 21700 Series
LG 21700-M50LT
18.2Wh nominal energy for 21700 pack design
The reviewed document is for M50LT. Do not automatically transfer its ratings to M50L or M50T.
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MODEL OVERVIEW
LG 21700-M50LT — Selection & Sourcing
LG M50LT is a 21700 battery cell specified by nominal energy: 18.2Wh at 3.69V in the reviewed document. It is relevant to buyers comparing LG 21700 cells for e-bike packs, mobile robots and equipment with a defined daily energy requirement. The specification separates temperature-dependent current limits from cycle tests. In particular, the reported 1000-cycle result uses a narrower 4.15–3.0V window than the 500-cycle test. That distinction helps pack designers compare usable energy and service life on the same basis.
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-M50LT 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 / catalog code | LG 21700-M50LT |
|---|---|
| Cell format | 21700 Series |
| Nominal energy | 18.2Wh |
| Minimum energy | 17.6Wh |
| Nominal voltage | 3.69V |
| Standard charge | 1.44A CC-CV 4.20V;50mA termination |
| Standard discharge | 0.96A to 2.50V |
| Charge voltage | 4.20V |
| Discharge cut-off | 2.50V for measurement;fieldcycle window per 4.2.4 |
| Maximum full-discharge current | 1.44A at −30–−20°C;9.6A at −20–10°C;14.4A at 10–25°C;9.6A at 25–55°C ambient |
| Maximum charge | 1.44A at 0–10°C;2.4A at 10–25°C;3.36A at 25–45°C ambient |
| Weight | 67.5±1g |
| Dimensions | Diameter≤21.44mm;height≤70.65mm |
| Initial DC impedance | 23±6mΩ;SOC 50%,0.5C 10s 25°C |
| Cycle life | ≥75% initial energy 500cycles at 2.4A/4.8A 4.2–2.5V;≥80%1000cycles at 2.4A/4.8A 4.15–3.0V;25°C |
Specification basis
Technical values summarized from LG INR21700M50LT — Product Specification, Promotion V10. Confirm the applicable revision with the offered lot. Reference pages: 5, 6, 8, 9.
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-M50LT 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.



