Is it 20 batteries, or 40 ???? You say in your advertising it's 40, then you say 20. Which is it ???

20 batteries. The 40 count is $19.99

When were these batteries manufactured to determine shelf life, also is the shelf life 5 or 10 years the ad states both, which is it?

Different battery has different shelf life,this one is 10 years.Hope the answer could help you.

Is this battery interchangeable with a E90 battery?

I have only used N batteries in the clocks that require N size and I'am not sure about multi use with E90.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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PKCELL N Size 1.5V Alkaline Batteries, 5 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices, GPS Trackers, Flashlights, Key Fobs, 10-Year Shelf Life

Product ID: 21555806

Details

Battery Capacity
1.5 Volts
Battery Cell Composition
Alkaline
Brand
PKCELL
Number of Batteries
5 Nonstandard

⏳10-year shelf life

🔋1.5V ultra-reliable power

♻️CE & RoHS certified eco-safe

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R237

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your life with confidence—long-lasting energy that never quits!

POWER THAT LASTS - 1.5V alkaline cells engineered for consistent, long-lasting energy to keep your essential devices running smoothly.
ECO CONSCIOUS CHOICE - Certified CE and RoHS compliant, ensuring safety for you and the planet without compromising performance.
LEAK PROOF RELIABILITY - Built to prevent damaging leaks, protecting your valuable electronics and giving you peace of mind.
DECADE READY SHELF LIFE - Store with confidence—these batteries stay fresh and ready for up to 10 years, perfect for emergency kits and infrequent use.
VERSATILE COMPATIBILITY - Ideal for medical devices, GPS trackers, flashlights, key fobs, and more—your all-in-one power solution.

PKCELL N Size 1.5V Alkaline Batteries come in a 5-pack designed for ultra-reliable performance across a wide range of devices including medical equipment and GPS trackers. Featuring a 10-year shelf life and certified safety standards (CE & RoHS), these batteries offer leak-proof durability and eco-friendly assurance, making them a smart, long-term power investment for professionals and families alike.

Specifications

ASIN	B010PMRJ7E
Antenna Location	Key Fobs,Car Alarms,Remote Controls,Medical Decices,GPS Trackers,Child Locators And Other Electronic Devices
Battery Capacity	1.5 Volts
Battery Cell Type	Alkaline
Battery Weight	80 Grams
Best Sellers Rank	#18,741 in Health & Household ( See Top 100 in Health & Household ) #113 in Coin & Button Cell Batteries
Brand	PKCELL
Customer Reviews	4.6 4.6 out of 5 stars (5,060)
Manufacturer	PKCELL
Model Name	LR1
Model Number	LR1
Number of Batteries	5 Nonstandard Battery batteries required.
Reusability	Single Use
Unit Count	5.0 Count
Voltage	1.5 Volts
Warranty Description	3

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