---
product_id: 453070919
title: "Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life"
brand: "czvv"
price: "€ 107.66"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.gr/products/453070919-rechargeable-9v-batteries-high-performance-lithium-ion-battery-8-pack
store_origin: GR
region: Greece
---

# 4-hour fast charge 850mAh capacity 10-year shelf life Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life

**Brand:** czvv
**Price:** € 107.66
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge Ahead: Power that lasts longer than your plans!

## Quick Answers

- **What is this?** Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life by czvv
- **How much does it cost?** € 107.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/453070919-rechargeable-9v-batteries-high-performance-lithium-ion-battery-8-pack)

## Best For

- czvv enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly Energy:** Say goodbye to harmful substances with our green manufacturing.
- • **Power Up Your Devices:** Experience 2.6x the capacity of standard batteries!
- • **Versatile Compatibility:** Perfect for a wide range of 9V devices!
- • **Long-Lasting Performance:** Enjoy 1300 cycles and 85% capacity after 36 months.
- • **Smart Charging Technology:** Fast 4-bay charger with LED status indicators.

## Overview

The CZVV Rechargeable 9V Batteries offer a high-performance lithium-ion solution with an impressive 850mAh capacity, a 4-bay fast charger, and a remarkable 10-year shelf life. Designed for eco-conscious consumers, these batteries maintain 85% capacity after 36 months of non-use and are compatible with a variety of 9V devices, making them a reliable choice for both everyday and professional use.

## Description

Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life

## Features

- Higher Capacity, Lower Spend: Upgraded 850mAh Lithium cobalt oxide battery with about 2.6x larger capacity than common 9V 320mAh batteries. The eco-friendly concept runs through manufacturing. Say NO to harmful substances together such as Hg/Cd/Pd. Less than 1% - self-discharge rate of CZVV 9v li-ion rechargeable battery ensures 85% capacity maintenance after 36 months of non-use. Longer 1300x service life - The Energy is About to Shift - a wonderful combination of electricity and chemistry.
- ≤4H Strong Fast-Charge: Support 4-channels of fast charging at the same time. Preset with 3 charging models - Trickle charging, Constant Current charging, and Constant voltage charging, 5V 2A input ensures batteries to 100%. LED lights on the charger allow you to check the charging status anytime. 6-in-1 IC chip with a leak-proof design, safety protection comes first, and hassle-free use. *Unauthorized use of other brand chargers may cause accidents.
- Wide Applications: Compatible with most 9V battery-powered devices, like 9-volt smoke sensors, garage door openers, alarm clocks, wireless microphones, radios, electronic toys, flashlights, remote controls, massagers, transceivers, guitars, bass guitars, metal detectors, multi-function instruments, etc.
- Why 8.7V instead of 9V? - As we all know, the nominal voltage of a Li-ion battery is 3.7V, and the full-charged voltage is 4.2V - better known as the charge cut-off voltage. By connecting two groups of 3.8V High-Energy-Density lithium-polymer cells in series, we fabricated K007 with an EnergyCLSave frame. Under ideal conditions, a fully charged 9-volt battery will maintain a high voltage of about 8.7V(4.35V*2) - the highest voltage among all brands' Lithium-ion 9V batteries can achieve so far.
- What You Get: CZVV Ultra 850mAh 9V Batteries(8 Count Pack with Output DC 8.7V), CZVV Q019 Pro Individual Portable 4-Bay Charger(Input 5V 2.0A), Type-C Lightning Cable, User Guide, our worry-free 12-month warranty, and friendly customer service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 13.58 Ounces |
| Color | 8 Pack 9V Batteries with Charger |
| Energy Specifications Met | UL |
| Input Voltage | 5 Volts |
| Output Voltage | 8.7 Volts |

## Product Details

- **Brand:** czvv
- **Color:** 8 Pack 9V Batteries with Charger
- **Item Weight:** 13.58 Ounces
- **Output Voltage:** 8.7 Volts
- **Specification Met:** UL

## Images

![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life - Image 1](https://m.media-amazon.com/images/I/71ZsUjGew3L.jpg)
![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life - Image 2](https://m.media-amazon.com/images/I/81BmWk3W1tL.jpg)
![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life - Image 3](https://m.media-amazon.com/images/I/71d2ifn6loL.jpg)
![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life - Image 4](https://m.media-amazon.com/images/I/81EbNlXouHL.jpg)
![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life - Image 5](https://m.media-amazon.com/images/I/71QkDZQWGjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ these are great
*by B***E on January 15, 2023*

saves a lot of money if you use a lot of guitar pedals

### ⭐ Great deal, fast charging
*by I***N on March 9, 2023*

I'm the Superintendent for a large Condominium Complex and I bought 72 of these thinking I was going to be getting a great deal. We check smoke detectors twice a year, installing new batteries when needed. I put all 72 batteries on the charge for 24 hours each and the charger showed them as having green lights, which the instructions say that they are charged.One of my employees got the boxes mixed up as to what was charged versus what was not charged yet and went and put the charged ones back on the charger. As you can see in the picture 3 of the 4 "CHARGED" batteries now show a RED light as uncharged. I tried this with all the ones that I had previously charged and of the 72, 68 of them I had to recharge again.For those 4 batteries that showed fully charged, I had to replace a smoke detector battery. I put that battery in and went to check some other units and about a half hour later the unit owner called me to tell me that the smoke detector was beeping. I had to go to the store and buy expensive Lithium batteries as these weren't working in any of the smoke detectors we put them in.It would have been a great idea and the first review I gave, I was highly pleased. Now, I'm totally not pleased. What a waste of time, energy, and money. They are returning my money when I send them back later today.

### ⭐⭐⭐⭐ 9v Batts and charger
*by M***D on March 22, 2023*

7 out of the 8 work just fine. Other 1 just keeps blinking.

## Frequently Bought Together

- czvv Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 8 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life
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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-21*