Illustrative render of the LG M50T cell✱ Render
Illustrative render generated from published specifications. Not a photograph of the actual cell.
21.1 × 70.2 mm · 70 g
21700NMC Mooch-tested · 14 A

LG M50T

LG · released 2018
Capacity5014 mAh18.05 Wh · 257.86 Wh/kg
Mooch continuous14 ASize to this figure
Resistance25DC internal resistance
Voltage window3.6 V2.5 – 4.2 V
Standard charge1455 mA~3.4 h to full

At 5014 mAh, this ranks #18 of 72 21700 cells in our database. Mid-range for capacity among 21700 cells. More capacity than 76% of 21700 cells in our database, but lower discharge than average.

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Full specifications

Electrical
ChemistryNMC
Nominal voltage3.6 V
Max charge voltage4.2 V
Discharge cutoff2.5 V
Max continuous discharge14A (Mooch-tested)
Mooch CDR (trusted)14 A
Standard charge current1455 mA
Standard discharge current1000mA
Internal resistance25 mΩ
Physical
Form factor21700
Dimensions21.1mm × 70.2mm
Weight70 g
Top typeFlat Top
ProtectedNo
Wrap colorGray
Performance
Capacity5014 mAh
Energy18.05 Wh
Specific energy257.86 Wh/kg
Energy density735.34 Wh/L
Power density (gravimetric)720 W/kg
Power density (volumetric)2,053 W/L
Cycle life300 cycles
Year released2018
Operating Limits
Charge temp0°C to 45°C
Discharge temp-20°C to 55°C

Independent test data: Mooch's test of the M50T ↗

At the standard 1455 mA charge rate, a full charge takes about 3.4 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
2.5V
Nominal
3.6V
Max charge
4.2V

Usable range: 1.7V

C-rate conversion: LG M50T (5014mAh)

C-RateCurrent (A)Theoretical runtime
0.2C1 A5h 00m
0.5C2.51 A2h 00m
1C5.01 A1h 00m
2C10.03 A30m

Highlighted row is closest to the rated 14A continuous discharge.

Charging

RateCurrentEstimated time
Standard1,455 mA~3h 27m
0.5C2,507 mA~2h 00m
1C5,014 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
1S3.6V4.2V2.5VFlashlights, single-cell devices
2S7.2V8.4V5VRC vehicles, 7.2V packs
3S10.8V12.6V7.5VPower tools (10.8V nominal)
4S14.4V16.8V10VEbike (small), some power tools
7S25.2V29.4V17.5VEbike (24V system)
10S36V42V25VEbike (36V system)
13S46.8V54.6V32.5VEbike (48V standard)
14S50.4V58.8V35VEbike (52V high-power)
16S57.6V67.2V40VDIY powerwall

Parallel capacity scaling

ConfigCapacityEnergyMax discharge
1P5,014 mAh18.1 Wh14 A
2P10,028 mAh36.1 Wh28 A
3P15,042 mAh54.2 Wh42 A
4P20,056 mAh72.2 Wh56 A
5P25,070 mAh90.3 Wh70 A
6P30,084 mAh108.3 Wh84 A

Example pack configurations

7S2P
24V ebike / small pack
14 cells25.2V nominal10,028mAh253Wh28A maxCell weight: 0.98 kg (add ~15% for wiring and BMS)
13S4P
48V ebike standard
52 cells46.8V nominal20,056mAh939Wh56A maxCell weight: 3.64 kg (add ~15% for wiring and BMS)
16S4P
DIY powerwall
64 cells57.6V nominal20,056mAh1155Wh56A maxCell weight: 4.48 kg (add ~15% for wiring and BMS)
4S6P
Power tool replacement
24 cells14.4V nominal30,084mAh433Wh84A maxCell weight: 1.68 kg (add ~15% for wiring and BMS)

Design a custom pack with this cell:

Application suitability

PowerwallsHigh capacity means more stored energy per cell. Fewer cells needed for a given kWh target.
Ebike PacksGood balance of capacity for range and discharge for hills. Works well in most ebike packs.
Car AudioMight work for smaller setups. Check your amp's peak current draw.
High-Drain VapingBelow the 25A Mooch CDR threshold that high-drain vaping needs. Use a higher-drain cell.
FlashlightsHigh capacity means long runtime. Great for everyday carry and extended use.
Power ToolsMay work for lighter-duty tools. Check your tool's current requirements.

Physical dimensions

Dimensions21.1mm × 70.2mm
TopFlat Top
Format21700

Similar cells

Same format and chemistry, within ±500mAh capacity:

CellmAhCDRWhWeightWh/kg
LG M50T (this cell)501414A18.0570g257.86
Linkdata 55P550040A19.8
Samsung INR21700-55E549010A19.8
BAK 53E530010A19.169g277
Samsung INR21700-53G530010A19.172g265
Ampace JP50P1500040A1872g250

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 2.5V.
  • 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.