---
product_id: 21698714
title: "Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries"
brand: "energizer"
price: "€ 25.08"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/21698714-energizer-ultimate-lithium-9v-batteries-1-pack-lithium-9-volt
store_origin: PT
region: Portugal
---

# 20% longer life vs. MAX 10-year shelf life Works -40°F to 140°F Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries

**Brand:** energizer
**Price:** € 25.08
**Availability:** ✅ In Stock

## Summary

> ⚡ Power that lasts through every season and every moment.

## Quick Answers

- **What is this?** Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries by energizer
- **How much does it cost?** € 25.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/21698714-energizer-ultimate-lithium-9v-batteries-1-pack-lithium-9-volt)

## Best For

- energizer enthusiasts

## Why This Product

- Trusted energizer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Longevity:** Outlasts Energizer MAX by 20%, powering your devices longer without interruption.
- • **Versatile Powerhouse:** Ideal for toys, clocks, and smoke detectors—your go-to battery for peace of mind.
- • **Lightweight & Compact:** Easy to handle and install, these 9V batteries won’t weigh you down.
- • **Leak-Resistant Durability:** Engineered to prevent leaks, protecting your valuable electronics and ensuring safety.
- • **Extreme Temperature Resilience:** Reliable performance from freezing -40°F to scorching 140°F—perfect for any climate or season.

## Overview

Energizer Ultimate Lithium 9V Battery delivers 20% longer life than Energizer MAX, operates reliably in extreme temperatures from -40°F to 140°F, features leak-resistant construction, and offers a 10-year shelf life—making it the ultimate choice for toys, clocks, and smoke detectors.

## Description

Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries

## Features

- 1 pack of Energizer Ultimate Lithium 9V Batteries
- Lasts up to 20 percent longer in toys versus Energizer MAX batteries
- Performance in extreme temperatures from -40 F to 140 F ensures reliable use in all seasons
- Long lasting batteries have leak-resistant construction
- Lightweight 9 volt batteries last up to 10 years in storage
- Ideal battery for toys and clocks, and long lasting smoke detector battery

## Product Details

- **Number of Batteries:** 1 AAA batteries required. (included)
- **Brand:** Energizer
- **Battery Cell Composition:** Lithium Metal
- **Battery Capacity:** 9 Volts
- **Recommended Uses For Product:** Radio

## Images

![Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries - Image 1](https://m.media-amazon.com/images/I/71oul0XReoL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: what is the mah?**
A: 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.

**Q: are these l522bp-2 the same as advance lithium l522 ?**
A: 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.

**Q: Life span in smoke alarms?**
A: Lasted only 1 year 5 months in my smoke detector.

**Q: Is there any chance of these batteries used in a smoke detector exploding and causing a fire?**
A: 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.

## Frequently Bought Together

- Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries
- Energizer Ultimate Lithium AA Batteries Pack, 1.5V AA Batteries, 24 Count
- Energizer AA Batteries, Ultimate Lithium Double A Battery, 8 Count

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**Shop now:** [https://www.desertcart.pt/products/21698714-energizer-ultimate-lithium-9v-batteries-1-pack-lithium-9-volt](https://www.desertcart.pt/products/21698714-energizer-ultimate-lithium-9v-batteries-1-pack-lithium-9-volt)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-22*