Has anyone had a problem with them being a bit larger than a standard alkaline 9-volt battery? I read some brands are tight in smoke detectors

They are slightly larger than normal 9v batteries. If you have the battery terminals that snap onto the battery, you might be ok. I have the type of smoke alarm that you slide the battery into and it’s supposed to “mate itself”. Because of the size difference and the battery being really squishy (not rigid) they did not work for me- I had to return all 8.

Are these batteries made in China or where?

While my personal belief is that it is safe to assume they are made in China, there is nothing on the batteries or on the packaging that indicates the country of origin.

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Enegitech 9V Lithium Battery

Product ID: 53934015

Details

Battery Capacity
1200
Battery Cell Composition
Lithium
Brand
Enegitech
Number of Batteries
4 Lithium Ion
Recommended Uses For Product
Camera Digital

⏳10-year shelf & backup life

⚡1200mAh high capacity

🌡️Operates -20°C to 60°C

€ 49.11

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Description

🔋 Power that outlasts your hustle — stay charged, stay secure.

READY WHEN YOU ARE - Factory fresh with ultra-fast flash performance and minimal recycle time—always primed for action.
VERSATILE POWERHOUSE - Perfect for smoke detectors, fire alarms, keyless entry, multimeters, metal detectors, and more high-drain devices.
DECADE LONG RELIABILITY - Up to 10 years of backup power in critical smoke detectors and fire alarms—because safety can’t wait.
EXTREME WEATHER WARRIOR - Smart protection ensures flawless operation from freezing cold to scorching heat (-20°C to 60°C).
DOUBLE THE POWER DOUBLE THE PEACE OF MIND - Lasts 2x longer than standard 600mAh lithium batteries for uninterrupted device performance.

Enegitech 9V Lithium Battery delivers a robust 1200mAh capacity, offering twice the lifespan of typical lithium batteries and up to 10 years of reliable backup power. Engineered with smart protection for extreme temperatures (-20°C to 60°C), this non-rechargeable battery is ideal for high-drain devices like smoke detectors, fire alarms, and keyless entry systems. Sold in a convenient 4-pack, it ensures your essential electronics stay powered longer and perform consistently.

Specifications

ASIN	B076MV1Z3P
Antenna Location	Camera,Digital,Smoke Detectors
Battery Capacity	1200 milliamp_hours
Battery Cell Type	Lithium Manganese Dioxide
Battery Weight	140 g
Best Sellers Rank	#195,666 in Health & Household ( See Top 100 in Health & Household ) #132 in 9V Batteries
Brand	Enegitech
Customer Reviews	4.6 4.6 out of 5 stars (371)
Included Components	Battery Pack
Item Type Name	9v, lithium, battery, 1200mah, non-rechargeable, li-ion, battery.
Item Weight	141 g
Manufacturer	Enegitech
Model Name	9V
Model Number	9V 1200mAh
Number of Batteries	4 Lithium Ion batteries required. (included)
Reusability	Single Use
UPC	611677932503
Unit Count	4 Count
Voltage	9 volts
Warranty Description	1 year manufacturer

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€ 49.11

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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4 days ago

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The delivery time was excellent, and the packaging was secure.

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