Illustrative render of the Panasonic CGR18650 cell✱ Render
Illustrative render generated from published specifications. Not a photograph of the actual cell.
18.3 × 63.2 mm
18650NMC

Panasonic CGR18650

Panasonic
Capacity1400 mAh5.18 Wh
Rated continuous2.6 A2.6A
Voltage window3.7 V3 – 4.2 V
Standard charge910 mA~1.5 h to full

At 1400 mAh, this ranks #160 of 169 18650 cells in our database. On the lower end for capacity among 18650 cells. A mid-range 18650 cell. Solid for builds that don't need extreme capacity or discharge.

Full specifications

Electrical
ChemistryNMC
Nominal voltage3.7 V
Max charge voltage4.2 V
Discharge cutoff3 V
Max continuous discharge2.6A
Standard charge current910 mA
Standard discharge current260mA
Physical
Form factor18650
Dimensions18.3mm × 63.2mm
Top typeFlat Top
ProtectedNo
Wrap colorPink
Insulator ringBlack
Performance
Capacity1400 mAh
Energy5.18 Wh
Energy density311.62 Wh/L
Power density (volumetric)579 W/L

At the standard 910 mA charge rate, a full charge takes about 1.5 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
3V
Nominal
3.7V
Max charge
4.2V

Usable range: 1.2V

C-rate conversion: Panasonic CGR18650 (1400mAh)

C-RateCurrent (A)Theoretical runtime
0.2C0.28 A5h 00m
0.5C0.7 A2h 00m
1C1.4 A1h 00m

Highlighted row is closest to the rated 2.6A continuous discharge.

Charging

RateCurrentEstimated time
0.5C700 mA~2h 00m
Standard910 mA~1h 32m
1C1,400 mA~1h 00m

These are estimates for the constant-current phase. Real charge time is a bit longer because of the slow taper at the end.

Datasheet

Pack scaling

Series voltage configurations

ConfigNominal VMax VMin VCommon use
1S3.7V4.2V3VFlashlights, single-cell devices
2S7.4V8.4V6VRC vehicles, 7.2V packs
3S11.1V12.6V9VPower tools (10.8V nominal)
4S14.8V16.8V12VEbike (small), some power tools
7S25.9V29.4V21VEbike (24V system)
10S37V42V30VEbike (36V system)
13S48.1V54.6V39VEbike (48V standard)
14S51.8V58.8V42VEbike (52V high-power)
16S59.2V67.2V48VDIY powerwall

Parallel capacity scaling

ConfigCapacityEnergyMax discharge
1P1,400 mAh5.2 Wh2.6 A
2P2,800 mAh10.4 Wh5.2 A
3P4,200 mAh15.5 Wh7.8 A
4P5,600 mAh20.7 Wh10.4 A
5P7,000 mAh25.9 Wh13 A
6P8,400 mAh31.1 Wh15.6 A

Example pack configurations

7S2P
24V ebike / small pack
14 cells25.9V nominal2,800mAh73Wh5A max
13S4P
48V ebike standard
52 cells48.1V nominal5,600mAh269Wh10A max
16S4P
DIY powerwall
64 cells59.2V nominal5,600mAh332Wh10A max
4S6P
Power tool replacement
24 cells14.8V nominal8,400mAh124Wh16A max

Design a custom pack with this cell:

Application suitability

PowerwallsToo low capacity for practical powerwall use. You'd need too many cells.
Ebike PacksNot enough discharge for ebike use. Voltage sag would be a problem under load.
Car AudioNot enough discharge for car audio amplifiers. You need at least 15-20A continuous for most setups.
High-Drain VapingBelow the 25A Mooch CDR threshold that high-drain vaping needs. Use a higher-drain cell.
FlashlightsLower capacity means shorter runtime. Better cells are available for flashlight use.
Power ToolsNot enough discharge or capacity for power tool use.

Physical dimensions

Dimensions18.3mm × 63.2mm
TopFlat Top
Format18650

Similar cells

Same format and chemistry, within ±500mAh capacity:

CellmAhCDRWhWeightWh/kg
Panasonic CGR18650 (this cell)14002.6A5.18
Sanyo UR18650H1900746g153
GP Batteries GP1865L18018001.8A6.7
Panasonic CGR18650HG18003.4A6.542g154
Panasonic CGR18650HGL18003.4A6.5
Sanyo UR18650P17006.3

Frequently asked questions

Handling and safety

Lithium cells can be dangerous if mishandled. A few things to keep in mind:

  • Never charge above 4.2V or discharge below 3V.
  • Store cells at around 3.6-3.8V (roughly 40-60% charge) for long-term storage.
  • Don't mix cells with different capacities, chemistries, or states of charge in a pack.
  • Inspect wraps before use. A torn wrap can cause a short circuit.
  • Always use a BMS or balance charger appropriate for your pack configuration.
  • Keep cells away from metal objects, keys, and coins. A short across the terminals can cause fire.

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Specs come from manufacturer datasheets and independent testing; Mooch-tested discharge ratings are shown when available because they reflect real continuous performance better than headline datasheet numbers. Browse the full 18650 & 21700 cell database to compare every cell.

Disclaimer: We do our best to keep the information on this page accurate, but we cannot guarantee that all specifications are correct or up to date. Cell characteristics can vary between production batches and may change over time. Do not rely solely on this data for safety-critical applications. Always verify against the manufacturer's official datasheet before use.