---
product_id: 443230310
title: "Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 4 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: "C$4368"
currency: NIO
in_stock: true
reviews_count: 13
category: "Czvv"
url: https://www.desertcart.ni/products/443230310-rechargeable-9v-batteries-high-performance-lithium-ion-battery-4-pack
store_origin: NI
region: Nicaragua
---

# 4-Bay Fast Charger ≤4H 850mAh Ultra Capacity 1300x Recharge Cycles Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 4 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:** C$4368
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Gear, Stay Ahead of the Pack!

## Quick Answers

- **What is this?** Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 4 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?** C$4368 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/443230310-rechargeable-9v-batteries-high-performance-lithium-ion-battery-4-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

- • **Built to Endure & Protect:** 1300 recharge cycles plus leak-proof design and 6-in-1 IC safety chip ensure reliability and peace of mind.
- • **Charge Four at Once, Fast:** Simultaneous 4-channel fast charging with smart LED indicators keeps your devices ready in under 4 hours.
- • **Power That Lasts Twice as Long:** 2.6x higher capacity than standard 9V batteries means fewer replacements and more uninterrupted productivity.
- • **Eco-Friendly & Low Self-Discharge:** Less than 1% monthly self-discharge keeps 85% capacity after 3 years, reducing waste and saving money.
- • **Universal Compatibility, Pro-Grade Voltage:** 8.7V output powers everything from smoke detectors to wireless mics with industry-leading lithium-ion tech.

## Overview

This CZVV rechargeable 9V lithium-ion battery 4-pack delivers an impressive 850mAh capacity—2.6 times that of typical 9V batteries—paired with a 4-bay fast charger that fully powers all batteries in under 4 hours. Engineered for longevity, these leak-proof batteries support up to 1300 recharge cycles and maintain 85% capacity after 3 years of non-use. Featuring advanced safety ICs and eco-conscious manufacturing, they provide a stable 8.7V output compatible with a wide range of professional and household devices, making them the smart, sustainable choice for millennial managers who demand performance and reliability.

## Description

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

Review: Do it - Good price Fast delivery Works well What more could you ask for?
Review: Please read carefully the whole review - I purchased these for my wife to use in her "Tens" unit. The tens unit came with nickel metal hydride batteries (NiMH or Ni–MH), and she was constantly recharging two batteries a day to keep the unit going. After I installed one of these Li-on batteries in the device it allowed my wife to use the tens unit, (during the day), for two days straight, and it still had power remaining. I am very "picky" about Lithium-Ion batteries, and these were a quality build. ***UPDATE*** I cannot recommend this set, because it does not offer a transformer or power source, and additionally has no way to discharge and recharge the batteries properly. I found two of the four batteries to only supply 2.4 volts and a little over 7 volts on the second one. They should charge to approximately 8.4 volts DC which in our situation was required to properly operate my wife's "Tens" unit. It is standard for a 9 volt Lithium-ion battery to charge to approximately 8.4 volts, and not the 9 volts as stated, but it should provide the needed voltage, and current for a lot longer than a regular, alkaline, or Ni-Mh battery. Too many of these battery/charger sets offered, want you to plug their charger into a laptop USB port or provide your own USB charger, which may not provide the needed current to each channel of the 4 charger ports. If they want their product to operate properly, the manufacturer should provide the proper charger with these units. Especially at the price of this packaged product .

## 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(4 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 |
|---------------|-------|
| ASIN | B09R4B24WK |
| Batteries | 5 9V batteries required. (included) |
| Best Sellers Rank | #58,300 in Health & Household ( See Top 100 in Health & Household ) #53 in 9V Batteries |
| Customer Reviews | 4.6 4.6 out of 5 stars (168) |
| Date First Available | June 15, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.1 ounces |
| Item model number | K007J 1*4 + Q019 |
| Manufacturer | CZVV |
| Product Dimensions | 1.8 x 0.66 x 1.04 inches |

## Product Details

- **Battery Capacity:** 850 Milliamp Hours
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** czvv
- **Number of Batteries:** 5 9V batteries required. (included)
- **Recommended Uses For Product:** Radio

## Images

![Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 4 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/71bjj99Y9sL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Do it
*by J***L on January 15, 2026*

Good price Fast delivery Works well What more could you ask for?

### ⭐⭐⭐⭐⭐ Please read carefully the whole review
*by B***M on November 26, 2022*

I purchased these for my wife to use in her "Tens" unit. The tens unit came with nickel metal hydride batteries (NiMH or Ni–MH), and she was constantly recharging two batteries a day to keep the unit going. After I installed one of these Li-on batteries in the device it allowed my wife to use the tens unit, (during the day), for two days straight, and it still had power remaining. I am very "picky" about Lithium-Ion batteries, and these were a quality build. ***UPDATE*** I cannot recommend this set, because it does not offer a transformer or power source, and additionally has no way to discharge and recharge the batteries properly. I found two of the four batteries to only supply 2.4 volts and a little over 7 volts on the second one. They should charge to approximately 8.4 volts DC which in our situation was required to properly operate my wife's "Tens" unit. It is standard for a 9 volt Lithium-ion battery to charge to approximately 8.4 volts, and not the 9 volts as stated, but it should provide the needed voltage, and current for a lot longer than a regular, alkaline, or Ni-Mh battery. Too many of these battery/charger sets offered, want you to plug their charger into a laptop USB port or provide your own USB charger, which may not provide the needed current to each channel of the 4 charger ports. If they want their product to operate properly, the manufacturer should provide the proper charger with these units. Especially at the price of this packaged product .

### ⭐⭐⭐⭐ Good so far
*by J***N on January 9, 2026*

I just started using them, I haven’t used them much to get a great review. But it works well so far.

## Frequently Bought Together

- czvv Rechargeable 9V Batteries - High-Performance Lithium-ion Battery 4 Pack with 4-Bay Speed Charger - Leak-Proof Ultra Long-Lasting 8.7 Volt 1300x Cycle Times with a 10-Year Shelf Life
- czvv Rechargeable AA 1.5V Lithium Batteries 8-Pack, Full-Recharged Long-Lasting 3500mWh High-Capacity 2300+mAh Dual A with Fast Charger Combo for High-Tech Devices, Blink Cameras, Cycle Times 1300x
- CZVV Rechargeable AA Lithium 1.5V Batteries 4-Pack, 3500mWh Full-Recharged Long-Lasting 2333mAh High-Capacity Dual A with Fast Charger Combo for Outdoor Security Blink Cameras, Cycle Times up to 1300x

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-22*