Battery Building ToolsCell Database ICR18650PA

✱ Render

18.3 × 65 mm

18650ICR

Hitachi Maxell (HM) ICR18650PA

Name: Hitachi Maxell (HM) ICR18650PA Lithium Battery Cell
Brand: Hitachi Maxell (HM)

Hitachi Maxell (HM) · released 2008

Capacity1450 mAh6.09 Wh

Rated continuous20 A20A

Voltage window4.2 V2.5 – 3.7 V

Standard charge1000 mA~1.5 h to full

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

At 1450 mAh, this ranks #159 of 169 18650 cells in our database. On the lower end for capacity among 18650 cells. Higher discharge than 91% of 18650 cells in our database. Great for high-drain builds.

Full specifications

Electrical
Chemistry	ICR
Nominal voltage	4.2 V
Max charge voltage	3.7 V
Discharge cutoff	2.5 V
Max continuous discharge	20A
Standard charge current	1000 mA
Standard discharge current	290mA
Physical
Form factor	18650
Dimensions	18.3mm × 65mm
Top type	Flat Top
Protected	No
Wrap color	Blue (Dark)
Insulator ring	Black
Performance
Capacity	1450 mAh
Energy	6.09 Wh
Energy density	356.21 Wh/L
Power density (volumetric)	4,913 W/L
Year released	2008
Operating Limits
Charge temp	0°C to 45°C
Discharge temp	-20°C to 60°C

At the standard 1000 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
4.2VMax charge
3.7V

Usable range: 1.2V

C-rate conversion: Hitachi Maxell (HM) ICR18650PA (1450mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.29 A	5h 00m
0.5C	0.73 A	2h 00m
1C	1.45 A	1h 00m
2C	2.9 A	30m
3C	4.35 A	20m
5C	7.25 A	12m
8C	11.6 A	7m 30s
10C	14.5 A	6m

Highlighted row is closest to the rated 20A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	725 mA	~2h 00m
Standard	1,000 mA	~1h 27m
1C	1,450 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	4.2V	3.7V	2.5V	Flashlights, single-cell devices
2S	8.4V	7.4V	5V	RC vehicles, 7.2V packs
3S	12.6V	11.1V	7.5V	Power tools (10.8V nominal)
4S	16.8V	14.8V	10V	Ebike (small), some power tools
7S	29.4V	25.9V	17.5V	Ebike (24V system)
10S	42V	37V	25V	Ebike (36V system)
13S	54.6V	48.1V	32.5V	Ebike (48V standard)
14S	58.8V	51.8V	35V	Ebike (52V high-power)
16S	67.2V	59.2V	40V	DIY powerwall

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	1,450 mAh	6.1 Wh	20 A
2P	2,900 mAh	12.2 Wh	40 A
3P	4,350 mAh	18.3 Wh	60 A
4P	5,800 mAh	24.4 Wh	80 A
5P	7,250 mAh	30.5 Wh	100 A
6P	8,700 mAh	36.5 Wh	120 A

Example pack configurations

7S2P

24V ebike / small pack

14 cells29.4V nominal2,900mAh85Wh40A max

13S4P

48V ebike standard

52 cells54.6V nominal5,800mAh317Wh80A max

16S4P

DIY powerwall

64 cells67.2V nominal5,800mAh390Wh80A max

4S6P

Power tool replacement

24 cells16.8V nominal8,700mAh146Wh120A max

Design a custom pack with this cell:

Pack Planner →Pack Designer →

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 AudioEnough discharge to handle amplifier bursts without voltage sag.

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 ToolsMay work for lighter-duty tools. Check your tool's current requirements.

Physical dimensions

Dimensions18.3mm × 65mm

TopFlat Top

Format18650

Build with this cell

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Frequently asked questions

What is the capacity of the Hitachi Maxell (HM) ICR18650PA?

What is the maximum discharge rate of the Hitachi Maxell (HM) ICR18650PA?

How many ICR18650PA cells do I need for a 48V ebike battery?

Can I use the ICR18650PA for vaping?

What temperature range can the ICR18650PA operate in?

What size is the Hitachi Maxell (HM) ICR18650PA?

Handling and safety

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

Never charge above 3.7V 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.