Battery Building ToolsCell Database NCR18650D

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18650NMC

Panasonic NCR18650D

Name: Panasonic NCR18650D Lithium Battery Cell
Brand: Panasonic

Panasonic

Capacity2700 mAh9.99 Wh

Rated continuous5.1 A5.1A

Voltage window3.7 V2.5 – 4.2 V

Standard charge1780 mA~1.5 h to full

Build a pack with this cell →Download spec sheet (PDF)

At 2700 mAh, this ranks #36 of 169 18650 cells in our database. Mid-range for capacity among 18650 cells. More capacity than 79% of 18650 cells in our database. One of the higher-capacity options.

Full specifications

Electrical
Chemistry	NMC
Nominal voltage	3.7 V
Max charge voltage	4.2 V
Discharge cutoff	2.5 V
Max continuous discharge	5.1A
Standard charge current	1780 mA
Standard discharge current	510mA
Physical
Form factor	18650
Top type	Flat Top
Protected	No
Wrap color	Gray
Insulator ring	White
Performance
Capacity	2700 mAh
Energy	9.99 Wh

At the standard 1780 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
2.5VNominal
3.7VMax charge
4.2V

Usable range: 1.7V

C-rate conversion: Panasonic NCR18650D (2700mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.54 A	5h 00m
0.5C	1.35 A	2h 00m
1C	2.7 A	1h 00m

Highlighted row is closest to the rated 5.1A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	1,350 mA	~2h 00m
Standard	1,780 mA	~1h 31m
1C	2,700 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.

Pack scaling

Series voltage configurations

Config	Nominal V	Max V	Min V	Common use
1S	3.7V	4.2V	2.5V	Flashlights, single-cell devices
2S	7.4V	8.4V	5V	RC vehicles, 7.2V packs
3S	11.1V	12.6V	7.5V	Power tools (10.8V nominal)
4S	14.8V	16.8V	10V	Ebike (small), some power tools
7S	25.9V	29.4V	17.5V	Ebike (24V system)
10S	37V	42V	25V	Ebike (36V system)
13S	48.1V	54.6V	32.5V	Ebike (48V standard)
14S	51.8V	58.8V	35V	Ebike (52V high-power)
16S	59.2V	67.2V	40V	DIY powerwall

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	2,700 mAh	10 Wh	5.1 A
2P	5,400 mAh	20 Wh	10.2 A
3P	8,100 mAh	30 Wh	15.3 A
4P	10,800 mAh	40 Wh	20.4 A
5P	13,500 mAh	50 Wh	25.5 A
6P	16,200 mAh	59.9 Wh	30.6 A

Example pack configurations

7S2P

24V ebike / small pack

14 cells25.9V nominal5,400mAh140Wh10A max

13S4P

48V ebike standard

52 cells48.1V nominal10,800mAh519Wh20A max

16S4P

DIY powerwall

64 cells59.2V nominal10,800mAh639Wh20A max

4S6P

Power tool replacement

24 cells14.8V nominal16,200mAh240Wh31A max

Design a custom pack with this cell:

Pack Planner →Pack Designer →

Application suitability

PowerwallsHigh capacity means more stored energy per cell. Fewer cells needed for a given kWh target.

Ebike PacksMarginal. Check your motor's peak draw first. You might get voltage sag 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.

FlashlightsDecent runtime. Works well for most flashlights.

Power ToolsNot enough discharge or capacity for power tool use.

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Panasonic NCR18650D (this cell)	2700	5.1A	9.99	—	—
LG LGABE11865	3200	9A	12	49g	245
LG LGEBE11865	3200	4.9A	12	—	—
Samsung ICR18650-32A	3200	6.4A	12	50g	240
EVE EVE-INR18650/33V	3200	10A	11.5	—	—
LG LGDBMH11865	3200	10A	11.5	—	—

Build with this cell

Pack PlannerSize your pack. Voltage, capacity, runtime, BMS.Pack Designer2D & 3D layout for your exact cell arrangement Pack BuilderBalance cells by capacity and internal resistance

Frequently asked questions

What is the capacity of the Panasonic NCR18650D?

What is the maximum discharge rate of the Panasonic NCR18650D?

How many NCR18650D cells do I need for a 48V ebike battery?

Can I use the NCR18650D for vaping?

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.