10440 Battery Equivalent, Voltage, Capacity, uses

In the electronics industry, rechargeable batteries are important for providing continuous power. Rechargeable batteries are used for different projects and devices. They are part of small devices and toys. A commonly used rechargeable battery is the 10440 battery, which provides continuous power. It is used for different tools and devices.

In this post, we will cover the detailed features of the 10440 battery and related factors for practical applications.

Table of Contents

What is a 10440 Lithium-Ion Battery?

• The 10440 battery is a cylindrical-shaped lithium-ion chemistry battery. The number 10440 defines a 10 mm diameter and a 44 mm battery length.
The size of this battery is equivalent AAA battery, so it does not face difficulty for avoiding any error for selection.
The 10440 battery’s lithium-ion chemistry gives high power compared to an alkaline AAA battery.
So they are best for devices where a larger output with a compact design is needed. Its small size makes it useful for different devices.

10440 Technical Features

voltage

The 10440 lithium battery voltage value is 3.7 volts. This voltage value makes it useful for LED lights, controlling high-speed motors used in toys, and part of high-drain projects.

maximum capacity of 10440 battery

• The capacity of the battery is 300 mAh to 600 mAh, which lies in a small space.

Rechargeability

It is a rechargeable battery that can be cycled a hundred times, giving low cost and high efficiency.

Discharge rates:

This battery has features to handle moderate discharge rates and is part of different devices like smoke detectors, flashlights, and some consumer electronics.

Features	3.7V 10440 size Cylindrical Li-Ion Cell, same size as AAA 1.2V rechargeable NiMH and NiCd battery
Nominal Voltage	3.7 V
Nominal Capacity	350 mAh,
Charging Current	0.35A Maximum
Max.Discharging Current	0.35A maximum
Dimensions(DxH)	10.2mm x 43mm
Weight	0.3 oz
Internal Impedance	less than or equal to 110 milli-ohm (with PTC)
Cycle Performance	80% of initial capacity at 300 cycles
Discharge Curve	LC-10440 Discharge Curve

10440 Battery vs AAA battery

Feature	10440 Battery	AAA Battery
Chemistry	Lithium-ion	Alkaline or NiMH
Application	High-drain devices	low-drain use
Cost per unit	Higher initially	Lower initially
Long-term value	Higher	Lower
Voltage	3.7V	1.5V or 1.2V
Rechargeable	Yes	(NiMH only)
Capacity	300–600mAh	1000 to 1200mAh

When we observe the designs of the AAA battery and the 10440 battery, we find that they are different.
10440 is rechargeable with a lithium-ion battery, and AAA is a non-rechargeable battery.
10440 has high energy, and AAA holds low power. The discharge rate for a 10440 lithium battery is 0.5C to 2C, and the discharge rate of an AAA battery is ~0.1C to 0.3C. So not used where high energy is needed, like a flashlight.

10440 battery equivalent

Battery Type	Size (mm)	Chemistry	Nominal Voltage	Capacity Range	Rechargeable	Similarity to 10440	Typical Use-Cases	details
10440	10×44	Li-ion	3.7 V	300–600 mAh	Yes	Base cell	Flashlights, laser pens, compact electronics	size as AAA but with much higher voltage
AAA (LR03)	10.5×44.5	Alkaline	1.5 V	1000–1250 mAh	No	same size only	Remotes, clocks, toys	Not electrically supportive voltage is too low
AAA NiMH (HR03)	10.5×44.5	NiMH	1.2 V	600–1100 mAh	Yes	same size	Cameras, toys	Not compatible, voltage too low
AAA Li-FeS2 (L92)	10.5×44.5	Lithium Iron Disulfide	1.5 V	1100–1200 mAh	No	size	High-drain small devices	Not equivalent electrically
AAA Lithium Rechargeable (3.7V AAA Li-ion)	10×44	Li-ion	3.7 V	250–400 mAh	Yes	Direct equivalent	LED flashlights, vape pens	denoted as “AAA-size Li-ion” like to 10440
10450	10×50	Li-ion	3.7 V	500–900 mAh	Yes	longer, same voltage	electronics	not physically configure where 10440 fits
14250	14×25	Li-ion / Li-Mn	3.0–3.7 V	300–600 mAh	varies	Voltage same, size is different	Sensors, meters	Not physical same
14500	14×50	Li-ion	3.7 V	600–1000 mAh	Yes	voltage, bigger size	Flashlights, electronics	“AA-size Li-ion”
16340 (RCR123A)	16×34	Li-ion	3.7 V	650–900 mAh	Yes	voltage, larger size	Cameras, tactical lights	A common replacement for higher capacity
18350	18×35	Li-ion	3.7 V	750–1200 mAh	Yes	voltage, much larger	Vapes, flashlights	high runtime but larger size
18650	18×65	Li-ion	3.6–3.7 V	2000–3500 mAh	Yes	voltage, much larger	Laptops, power banks	Not physically same
CR123A (Primary)	17×34.5	Li-Mn	3.0 V	1300–1700 mAh	No	Lower voltage,	Cameras, alarms	Not rechargeable

14250 Battery vs. 10440 Battery

Feature	14250 Battery	10440 Battery
Size (D × L)	14mm × 25mm	10mm × 44mm
Type	Primary / Secondary	Secondary
Recharge Cycles	500+ (rechargeable)	300–500
Applications	Sensors, meters, alarms	Flashlights, gadgets
Operating Temp Range	-55°C to +85°C	0°C to +60°
Chemistry	Li-SOCl₂ / Li-Ion	Li-Ion
Nominal Voltage	3.0V / 3.6V	3.7V
Capacity	800 to1200mAh	320 to 600mAh
Rechargeable	Optional	Yes
Standard Discharge Current	1A	0.5–1A
Max Discharge (Pulse)	2A	2A
Shelf Life	10 years	~3 years

10440 vs 18650

Feature	10440	18650
Size	10×44 mm	18×65 mm
Chemistry	Li-ion	Li-ion
Nominal Voltage	3.7V	3.6–3.7V
Typical Capacity	300–600 mAh	2500–3500+ mAh
Rechargeable	Yes	Yes
Max Discharge Current	1 to 3A typically	10 to 30A, depending on model
Protection Circuit	Optional	Optional

Safe Charging of the 10440 battery

The safe charging of the 1440 battery is important, so use the charger according to the battery’s requirements. During charging, do not increase battery voltage more than 4.2V.
During charging, monitor the battery; that helps to keep the battery safe from getting hot.
Safe charging protects our devices, since overcharging of lithium-ion batteries can cause overheating.
For safe battery storage, save in a strong casing. Store batteries in cool and dry locations.
Keep battery voltage at 3.5 to 3.7 V when not in use, that increases battery working life.

FAQS

Can the 14250 battery be replaced with an AAA device?

No, both can be replaced since there is a voltage difference. 14250 battery voltage is 3.7 volts, and AAA voltage is 1.5, so different voltages affect devices.