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Tesla Battery Atlas

Panasonic 2170 · Generation 2

Panasonic 3L

3L[1][7]

Panasonic's 2170L cells in the familiar 4,416-cell layout, pushing the pack to about 82 kWh.

NCA2170 cylindrical2020 – presentCommunity
Gross capacity
82.1 kWh
conflicting reports
Usable capacity
76 kWh
conflicting reports
Cells
4,416
Pack mass
Unknown
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Pack · top view

4 modules

Cell supplier
Panasonic Energy
Cell
Panasonic 2170L
Built at
Fremont

About this pack

From late 2020, Fremont's Long Range and Performance Model 3 moved to Panasonic's 2170L cells. The layout stayed at 4,416 cells (96s46p), but capacity rose to about 82 kWh. The Akkuwiki lists 82.1 kWh, and EV Database lists 82 kWh nominal with 76 kWh usable.

Fremont-built Model Y Long Range packs are described as Panasonic units of about 82 kWh, consistent with the 3L. The exact pack code for Model Y has not been verified here.

Specifications

Pack data, value by value

  • Manufacturer-confirmed
  • Documented
  • Community-reported
  • Estimated

Every value shows its evidence level and sources. “Unknown” means no source we trust has published it. We never fill gaps with assumptions.

Gross capacity: 2 reported valuesspread 0.1 kWh · 0.1%

Filled dot: the value shown as primary (the most specific source for this pack). Rings: other reported values. Differences often come from different definitions of gross capacity.

Gross capacityTotal energy incl. bottom buffer
82.1 kWhCommunity[1]

Other reported values:

  • 82 kWh[2][3]Database nominal figure.
Usable capacityEnergy available 100% → 0%
76 kWhCommunity[2]

Other reported values:

Chemistry
NCADocumented[2]
Cell format
2170Documented[2]
Cell supplier
Panasonic EnergyDocumented[2]
Cell count
4,416Community[2]
ConfigurationSeries × parallel
96s46pCommunity[2]
Modules
4Estimated

Same pack architecture as the Panasonic 3.

Nominal voltage
Unknown
Architecture
Unknown
Pack mass
Unknown
Energy densityPack level
Unknown

Requires both pack mass and capacity.

Structural pack
NoEstimated
Peak DC charging
Unknown

The cell

Panasonic 2170L

A higher-capacity revision of the Panasonic 2170 that raised the Long Range pack to roughly 82 kWh from late 2020.

186502170Ø21 mm70 mm4680DRAWN TO SCALE · DASHED: OTHER CYLINDRICAL FORMATS

Cell data

Dimensions
Ø21 × 70 mmDocumented[8]
Capacity
Unknown
Nominal voltage
Unknown
Energy per cell
Unknown
Chemistry
NCADocumented[2]

Capacity in context

Gross capacity of every documented pack. Hatched bars are disputed ranges; packs with unknown capacity are omitted.

  1. Cybertruck 4680123
  2. Model S/X 100103
  3. Model S/X 2021+100
  4. Model S/X 9090
  5. LG 5N88.2
  6. Model S 8585
  7. LG 5M84.7
  8. Panasonic 3L82.1
  9. Roadster 3.0 (R80)80
  10. Tesla 8L79
  11. LG 5L78.8
  12. Panasonic 377.8
  13. Model S/X 7575
  14. LG 5C74.5
  15. Tesla 4680 Structural (Model Y)69
  16. CATL 6M62.5
  17. CATL 6L60
  18. BYD 7C55–60 (disputed)
  19. CATL 6C55
  20. Panasonic 1L55
  21. Panasonic 1C53.1
  22. Roadster ESS53

Applications

Where this pack is installed

Each row is a documented link between this pack and a vehicle variant, with its factory, period and evidence. A variant may also appear with other packs.

Model 3Open in finder
VariantPeriodFactoryMarketCodeEvidence
Long Range AWDModel 3 (2017–2023)2021 – 2023FremontNot market-specific—
Community[4][3]

Switch reported around Q2 2021 in the US; cars built around the switchover could have either pack.

PerformanceModel 3 (2017–2023)2020 – 2023FremontNot market-specific—
Community[2]
Model YOpen in finder
VariantPeriodFactoryMarketCodeEvidence
Long Range AWDModel Y (2020–2025)2020 – 2025FremontNot market-specific—
Community[6]

Fremont-built Model Y Long Range packs are described as Panasonic units of about 82 kWh. The pack code for Model Y is not confirmed, and early 2020 builds may differ.

Long Range AWDModel Y Juniper (2025–)2025 – presentFremontNorth America—
Community[6]

Described as a Panasonic ~82 kWh pack in 2026. Pack code not confirmed.

Supply chain

  • Panasonic Energy at Gigafactory NevadaUnited StatesGigafactory NevadacellsDocumented[8][9][6]

    Cells are produced and assembled into packs on the same campus.

  • Gigafactory NevadaUnited StatesTesla Fremont FactorypacksDocumented[10][11]

    Model 3 and Model Y packs and drive units are shipped from Nevada to Fremont for final assembly.

View on the global map

Performance

Charging, advantages and tradeoffs

Peak DC charging

Unknown

No verified charging curve for this pack is in the database yet. Curves vary with temperature, state of charge and software, so we only publish curves backed by repeatable measurements.

Advantages

  • About 4 kWh more than the original Panasonic Long Range pack, with no change to cell count. [1][2]

Tradeoffs

None documented with a source yet.

Identification

How to tell if your car has it

  • US-built Long Range Model 3 delivered after roughly April 2021 most likely carry this pack, according to owner reports. Cars built around the switchover could have either pack.
  • The pack part number on the label confirms the pack definitively.
  • The part number on the high-voltage battery label and Tesla service records are definitive. A VIN alone does not encode the cell supplier or pack code.

History

Lineage in the Panasonic 2170 family

Panasonic 2170 cells produced inside Gigafactory Nevada power Fremont-built Model 3 and Model Y packs, from the original 75 kWh-class pack to the 82 kWh 3L.

  1. Panasonic 1C2019–2020 · 53.1 kWh
  2. Panasonic 32017–2021 · 77.8 kWh
  3. Panasonic 1L2021 · 55 kWh
  4. Panasonic 3L2020–now · 82.1 kWh

Related packs

LG 5LvsPanasonic 1LvsPanasonic 3vs

Sources

11 references

  1. [1]
    [Wiki] Akkuwiki – Model 3 / Y / S / X / CT

    TFF Forum (Tesla Fahrer & Freunde)communityConsulted 28 Oct 2026Pending direct review

    Primary community reference for Model 3/Y pack codes. Used as a research reference only; its tables are not reproduced. Direct access was unavailable during compilation.

  2. [2]
    Tesla Model 3 Performance (2020–2022)

    EV DatabasedatabaseConsulted 28 Oct 2026Pending direct review

  3. [3]
    Tesla Model 3 Long Range Panasonic battery (2017–2023) – tech specs

    EVSpecsdatabaseConsulted 28 Oct 2026Pending direct review

  4. [4]
    What size battery do I have?

    Tesla Motors ClubcommunityConsulted 28 Oct 2026Pending direct review

  5. [5]
    Tesla Model 3 Allegedly Has New Panasonic Cells, Capacity Goes Up to 82 kWh

    autoevolutionpressConsulted 28 Oct 2026Pending direct review

  6. [6]
    Tesla cancels Fremont-made Model Y Long Range orders in Canada after switching to imports from China

    Drive Tesla CanadapressPublished 12 Sep 2026Consulted 28 Oct 2026Pending direct review

  7. [7]
    Quelles versions de batteries équipent les Tesla Model 3 et Y ?

    Fiches-Auto.frpressConsulted 28 Oct 2026Pending direct review

    Secondary table mapping pack codes to suppliers. States that its capacities are gross values.

  8. [8]
    Gigafactory begins battery production: Start of something big for Tesla?

    The Christian Science MonitorpressPublished 4 Jan 2017Consulted 28 Oct 2026Pending direct review

  9. [9]
    Panasonic Opens World's Largest EV Battery Plant In Kansas

    InsideEVspressPublished Jul 2025Consulted 28 Oct 2026Pending direct review

  10. [10]
    MADE IN NEVADA: Tesla

    KOLO 8 News NowpressConsulted 28 Oct 2026Pending direct review

  11. [11]
    Tesla Giga Nevada hits 5 million drive unit production milestone

    TeslaratipressPublished 2024Consulted 28 Oct 2026Pending direct review