--- 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: "213 zł" currency: PLN in_stock: true reviews_count: 13 category: "Czvv" url: https://www.desertcart.pl/products/443230310-rechargeable-9v-batteries-high-performance-lithium-ion-battery-4-pack store_origin: PL region: Poland --- # 1300 Recharge Cycles 850mAh Ultra Capacity ≤4H Fast Charge 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:** 213 zł **Availability:** ✅ In Stock ## Summary > 🔋 Stay Charged, Stay Ahead — Power Your Professional Edge ## 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?** 213 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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:** 1300 recharge cycles and a 10-year shelf life ensure your investment keeps powering your essentials for years. - • **Power That Lasts:** 2.6x higher capacity than standard 9V batteries means fewer replacements and more uptime for your devices. - • **Eco-Conscious & Safe:** Leak-proof design with 6-in-1 IC chip protection and zero toxic heavy metals—power up responsibly. - • **Universal Compatibility:** Perfect for smoke detectors, wireless mics, garage openers, and all your 9V-powered professional gear. - • **Charge at Lightning Speed:** Simultaneously fast-charge 4 batteries in under 4 hours with smart multi-mode charging technology. ## Overview This 4-pack of CZVV rechargeable 9V lithium-ion batteries delivers an impressive 850mAh capacity—2.6 times that of typical 320mAh 9V batteries—paired with a fast 4-bay charger supporting ≤4-hour full charges. Engineered for longevity with 1300 recharge cycles and a 10-year shelf life, these leak-proof batteries maintain 85% capacity after 3 years unused. Featuring advanced safety ICs and eco-friendly materials, they’re compatible with a wide range of 9V devices, making them the smart, sustainable choice for professionals who demand reliable power. ## 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 ## 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 | | Amperage | 2 Amps | | Antenna Location | Radio | | Battery Capacity | 850 Milliamp Hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Battery Weight | 1.16 Ounces | | Best Sellers Rank | #183,735 in Health & Household ( See Top 100 in Health & Household ) #123 in 9V Batteries | | Brand | czvv | | Customer Reviews | 4.5 out of 5 stars 214 Reviews | | External Testing Certification | CE, RoHS, UN38.3, PSE, WEEE, SP188 | | Item Dimensions | 1.8 x 0.66 x 1.04 inches | | Manufacturer | CZVV | | Model Name | K007J 1*4 + Q019 | | Model Number | K007J 1*4 + Q019 | | Number of Batteries | 5 9V batteries required. (included) | | Recommended Uses For Product | Radio | | Reusability | Rechargeable | | Unit Count | 1 Count | | Voltage | 8.7 Volts | | Warranty Description | Unconditional 12-Months Warranty | ## 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 ### ⭐⭐⭐⭐⭐ Review *by J***O on March 21, 2026* ### ⭐⭐⭐⭐⭐ Review *by O***A on January 24, 2026* ### ⭐⭐⭐⭐⭐ Review *by B***E on January 19, 2026* ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/443230310-rechargeable-9v-batteries-high-performance-lithium-ion-battery-4-pack](https://www.desertcart.pl/products/443230310-rechargeable-9v-batteries-high-performance-lithium-ion-battery-4-pack) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-31*