According to a vendor, it is 750 mAh capacity; I use them for smoke alarms (hardwired installed) and haven't replaced one yet. Generally standard 9v batteries would die after a power outage, ive replaced them all with lithium no problems in since.

are these l522bp-2 the same as advance lithium l522 ?

Nope, different. "9V Ultimate lithium" are Energizer's current product. Energizer '9V Advanced lithium' has been discontinued so I'd bet that those are old stock. Be sure to check the expiration date. BP-2 just indicates there are two batteries in each individual package. No designation, A plain BP, or Bp-1 would indicate a single battery per package. BP4 would be a 4 pack, etc.

Life span in smoke alarms?

Lasted only 1 year 5 months in my smoke detector.

Is there any chance of these batteries used in a smoke detector exploding and causing a fire?

Virtually none. This type of battery constuction is by far the most stable of all common types. These are much safer and more stable than NiMH such as rechargeables or "standard" batteries which are generally Alkaline. I use these in any sensitive devices or devices not used often but important. As such I use these in my own smoke detectors and have never had any issue. For what it is worth I've been a FireFighter for 25+ years, so yes they are safe. The one thing to be aware of is that if your smoke detector is hard wired and requires a rechargeable battery as a backup power source then do not use these. These are not rechargeable batteries.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Energizer Ultimate Lithium Battery

Product ID: 733804853

Details

Number of Batteries
1 AAA
Brand
Energizer
Battery Cell Composition
Lithium
Battery Capacity
9 Volts
Recommended Uses For Product
Remote Control

⚡20% longer life vs Energizer MAX

🔋10-year shelf life, leak-proof

❄️🔥Operates from -40°F to 140°F

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

11621 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Description

⚡ Energize your essentials with unstoppable power!

LEAK PROOF SAFETY - Protects your valuable devices with a durable, leak-resistant design that prevents corrosion and damage.
POWER THAT OUTLASTS - Lasts up to 20% longer than standard alkaline batteries, keeping your devices energized when it matters most.
VERSATILE ESSENTIAL - Ideal for smoke detectors, toys, remote controls, and watches—powering your everyday essentials with confidence.
EXTREME WEATHER READY - Performs flawlessly in harsh conditions from freezing cold to scorching heat, ensuring reliability year-round.
LIGHTWEIGHT LONG LASTING - Weighing just 36 grams, this 9V lithium battery stores power for up to 10 years, ready whenever you need it.

The Energizer Ultimate Lithium 9V Battery delivers 20% longer life than Energizer MAX, operates reliably in extreme temperatures from -40°F to 140°F, and features a leak-proof design for device protection. Lightweight and with a 10-year shelf life, it’s the go-to power source for smoke detectors, toys, and remote controls.

Specifications

ASIN	B018N7YZL6
Amperage	1 Amps
Antenna Location	Remote Control Vehicle
Battery Capacity	9 Volts
Battery Cell Composition	Lithium
Battery Cell Type	Lithium
Battery Weight	250 Grams
Brand	Energizer
Compatible Phone Models	smoke detector, remote control car, toy, game
Customer Reviews	4.7 out of 5 stars 2,288 Your Review
Global Trade Identification Number	00039800911568
Item Dimensions	32 x 13 x 19 mm
Item Weight	36 g
Manufacturer	Energizer
Model Name	ENR L522BP.H4 LITH 9V-1 EMOD
Model Number	L522BP
Number of Batteries	1 AAA batteries required. (included)
Recommended Uses For Product	Remote Control Vehicle
Reusability	Rechargeable
UPC	039800911568
Unit Count	1.0 Count
Voltage	9 Volts

Reviews

C**A

Energía de verdad

La compré por sus características en cuanto a la alta resistencia a temperaturas tanto frío como para calor ... Espero también sea más durable que la batería Energizer Max que utilizo normalmente

11.08.2018

A**R

Good price

23.03.2026

M**R

Preiswert

18.11.2025

C**M

Great price and factory fresh!

7.04.2026

L**Y

Best money can buy for guitar pups

12.08.2023

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

11621 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews