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Tesla Battery Atlas

Panasonic 2170 · Generation 1

Panasonic 3

3[1]

The original Model 3 Long Range pack: 4,416 Panasonic cells in four long modules.

NCA2170 cylindricalJul 2017 – 2021Community
Gross capacity
77.8 kWh
conflicting reports
Usable capacity
Disputed
conflicting reports
Cells
4,416
Pack mass
Unknown
Compare Is this in my car? Suggest a correction

Pack · top view

4 modules

Cell supplier
Panasonic Energy
Cell
Panasonic 2170 (first generation)
Vehicles
Model 3
Built at
Fremont

About this pack

The first Model 3 Long Range pack held 4,416 Panasonic 2170 cells in four modules. Two modules carry 25 bricks and two carry 23, for 96 bricks in series, and each brick groups 46 cells in parallel.

Capacity figures for this pack disagree. EPA documents cited by 42HOW list 350 V and 230 Ah, about 80.5 kWh. The Munro teardown described a 75 kWh pack, and the Akkuwiki lists the Panasonic 3 at 77.8 kWh. All three are shown here; none has been silently chosen.

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: 3 reported valuesspread 5.5 kWh · 7.1%

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
77.8 kWhCommunity[1]

Akkuwiki capacity figure for code 3.

Other reported values:

  • 80.5 kWh[4]Derived from EPA documents (350 V × 230 Ah).
  • 75 kWh[3]Munro & Associates teardown.
Usable capacityEnergy available 100% → 0%
Disputed

Usable capacity is disputed.

Sources report different values. None is marked as correct:

  • 75 kWh[5]Akku-Brief lists about 75–78 kWh net for 2019–2020 Fremont Long Range.
  • 78 kWh[4]Tesla stated 78 kWh available capacity, as quoted by 42HOW.
Chemistry
NCADocumented[7][8]
Cell format
2170Confirmed[9]
Cell supplier
Panasonic EnergyDocumented[9][1]
Cell count
4,416Documented[2][3]
ConfigurationSeries × parallel
96s46pDocumented[2]
Modules
4Documented[2]

Two modules of 25 bricks and two of 23.

Nominal voltage
350 VDocumented[4]
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 2170 (first generation)

Jointly designed by Tesla and Panasonic and mass-produced at Gigafactory Nevada from January 2017. EV Database labels this generation 2170C.

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

Cell data

Dimensions
Ø21 × 70 mmConfirmed[9]
Capacity
Unknown
Nominal voltage
Unknown
Energy per cell
Unknown
Chemistry
NCADocumented[8][7]

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 RWDModel 3 (2017–2023)Jul 2017 – 2019FremontNot market-specific—
Community[2][5]
Long Range AWDModel 3 (2017–2023)2018 – 2021FremontNot market-specificE3D
Community[5][6][1]

US production switched to the 3L around Q2 2021, according to owner reports.

PerformanceModel 3 (2017–2023)2018 – 2020FremontNot market-specific—
Community[5]

Supply chain

  • Panasonic Energy at Gigafactory NevadaUnited StatesGigafactory NevadacellsDocumented[9][11][8]

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

  • Gigafactory NevadaUnited StatesTesla Fremont FactorypacksDocumented[12][13]

    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

  • The Munro teardown found closely matched cell modules and praised the pack's engineering. [3]

Tradeoffs

  • The cells are glued in place, which makes replacing individual cells difficult. [3]

Identification

How to tell if your car has it

  • European cars: the variant field (D.2) of the registration certificate or COC reads E3D or E3CD for this pack family.
  • VIN prefix 5YJ indicates a Fremont-built car.
  • 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
  1. Documented[10][2]

    First Model 3 handover

    The first 30 Model 3s are handed over in Fremont on 28 July 2017, with 4,416 Panasonic 2170 cells per Long Range pack.

Related packs

LG 5CvsPanasonic 1CvsPanasonic 3Lvs

Sources

13 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: Exclusive look at the battery pack architecture

    ElectrekpressPublished 24 Aug 2017Consulted 28 Oct 2026Pending direct review

  3. [3]
    Teardown reveals Tesla Model 3 has "best battery ever built to date"

    TechSpot (Munro & Associates teardown)pressConsulted 28 Oct 2026Pending direct review

  4. [4]
    How was the battery pack of Tesla Model 3 manufactured?

    42HOWpressPublished 3 Jun 2018Consulted 28 Oct 2026Pending direct review

    Cites EPA documents: 350 V and 230 Ah for the Long Range pack.

  5. [5]
    Used Tesla Model 3: Battery, Variants, SoH

    AkkubriefdatabaseConsulted 28 Oct 2026Pending direct review

  6. [6]
    What size battery do I have?

    Tesla Motors ClubcommunityConsulted 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]
    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

  9. [9]
    Gigafactory begins battery production: Start of something big for Tesla?

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

  10. [10]
    Tesla Model 3 production starts Friday, Musk says

    Cars.compressPublished Jul 2017Consulted 28 Oct 2026Pending direct review

  11. [11]
    Panasonic Opens World's Largest EV Battery Plant In Kansas

    InsideEVspressPublished Jul 2025Consulted 28 Oct 2026Pending direct review

  12. [12]
    MADE IN NEVADA: Tesla

    KOLO 8 News NowpressConsulted 28 Oct 2026Pending direct review

  13. [13]
    Tesla Giga Nevada hits 5 million drive unit production milestone

    TeslaratipressPublished 2024Consulted 28 Oct 2026Pending direct review