--- product_id: 181909643 title: "Kratax 9v Rechargeable Batteries 4 Pack 850mAh high Capacity 9 Volt 6F22 Lithium Batteries Rechargeable, 1000 Cycles for Smoke Alarms Guitar Multimeter Microphones-Charger NOT Included" brand: "kratax" price: "234.59 DT" currency: TND in_stock: true reviews_count: 8 category: "Kratax" url: https://www.desertcart.tn/products/181909643-kratax-9v-rechargeable-batteries-4-pack-850mah-high-capacity-9 store_origin: TN region: Tunisia --- # 2.3A Max Output Current 850mAh High Capacity 1000 Recharge Cycles Kratax 9v Rechargeable Batteries 4 Pack 850mAh high Capacity 9 Volt 6F22 Lithium Batteries Rechargeable, 1000 Cycles for Smoke Alarms Guitar Multimeter Microphones-Charger NOT Included **Brand:** kratax **Price:** 234.59 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power up smarter, last longer, and stay safe—because your gear deserves the best. ## Quick Answers - **What is this?** Kratax 9v Rechargeable Batteries 4 Pack 850mAh high Capacity 9 Volt 6F22 Lithium Batteries Rechargeable, 1000 Cycles for Smoke Alarms Guitar Multimeter Microphones-Charger NOT Included by kratax - **How much does it cost?** 234.59 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/181909643-kratax-9v-rechargeable-batteries-4-pack-850mah-high-capacity-9) ## Best For - kratax enthusiasts ## Why This Product - Trusted kratax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power That Lasts:** 40% higher capacity than standard 600mAh batteries means your devices stay energized longer—no more mid-use power drops. - • **Built-In Safety Shield:** Multi-protection tech guards against overcharge, overvoltage, short circuits, and reverse charging—keeping you and your devices safe. - • **Universal Compatibility:** Seamlessly powers a wide range of professional and home electronics—from wireless mics to smoke detectors—making it your go-to 9V solution. - • **Eco-Friendly & Lightweight:** Low-carbon lithium-ion design with 30% less weight than Ni-MH batteries, plus ultra-low self-discharge for long shelf life and less waste. - • **Reliable High-Current Performance:** Delivers up to 2.3A output current, perfect for high-drain devices like smoke alarms, guitars, and multimeters without compromise. ## Overview Kratax 9V Rechargeable Batteries offer an impressive 850mAh capacity with up to 1000 recharge cycles, delivering 2.3A max current for high-performance devices. Certified for safety with multi-protection features, these lightweight lithium-ion batteries provide 40% more capacity than typical 600mAh options and maintain ultra-low self-discharge rates, making them an eco-conscious, reliable choice for professionals and tech-savvy users alike. ## Description Product description Kratax 4pack 850mAh High Capacity 9V Rechargeable Batteries Package Contents Only 4pack 9V Li-ion rechargeable batteries Charger not included Standard square 6F22 rechargeable 9V lithium batteries Capacity: 850mAh Full charge voltage: 8.4V-8.7V Continuous output: 800mA Size:1.9*0.98*0.63inch Item Weight:32g / per battery Maximum output current: 2.3A. (High-power load capacity which is convenient for high-intensity electrical appliances) The standard voltage of other brands' 9V lithium rechargeable battery is 8.2V-8.4V. Our 9V Li-ion battery contains 2pcs high-quality battery cell (4.35V / per cell), so standard voltage is 8.4V-8.7V. The positive and negative electrodes of the battery adopt high-quality conductive metal caps, which are anti-rust and anti-oxidation. The lithium battery storage time is more than 10 years at room temperature, carbon batteries is 2 years, alkaline batteries is 5 years. 40% higher capacity than other brands of 600mAh lithium-ion battery. Multi-protection function to protect the battery and charging safety. Our batteries and chargers have passed ROHS, CE, CQC, PSE, etc. certification. The weight of this battery is 30% lower than Ni-MH batteries, no memory effect, passed national safety certification, safe and secure, low-carbon, five protections for charge and discharge. Recommended Kratax 9V Battery Charger--This link does NOT include the charger. Review: Great battery for the buck! - I got these to replace a lot of my 9 Volt applications since they're very close to the electrical requirements of alkaline batteries WITH OUT THE FEAR OF LEAKAGE. I've had it with Duracell's leaking batteries and replaced all my batteries with these So far, no leak and good performance does it for me!! Review: New batteries look great! - 16APR25 Of the four, 3 measured better than 850mAh and one a not too bad 822mAh (see photo). I used a 100mA charging and discharging rate. Using a RC3563 battery tester to measure resistance I found a nominal 150mΩ value. This is the lowest value I've ever seen in a 9V. I'm not sure whether, or not, the battery's internal circuitry will, non destructively, protect things in a short circuit situation. That's 60A!! ## Features - 850mAh High Capacity: Kratax 9v rechargeable batteries cycle life can reach 1000 times, 40% higher capacity than other brands of 600mAh lithium-ion battery, full charge voltage: 8.4V-8.7V, maximum output current: 2.3A, larger capacity and ultra long lasting. The service life is 3 times that of alkaline batteries and 5 times that of carbon batteries. - Wide Compatibility: Our rechargeable 9v battery is suitable for various electrical appliances such as Wireless Microphone, Multimeter, Electric Guitars, Walkie-talkie, Toy Remote Controls, Smoke Alarm, Smoke Detectors, Cameras, Massagers, Alarm Clocks, Portable Radios, Transistor Radio. - Multi-Protection: Kratax 9 Volt 6F22 lithium battery and chargers have passed ROHS, CE, CQC, PSE, etc. certification. Built-in protection device to prevent Overcharge, Overvoltage, Overcurrent, Over Discharge, Reverse Charge and Short-circuit protection, more secure to use. - Low-carbon and environmental: It does not contain any toxic and harmful heavy metal elements and substances, such as lead, mercury, and cadmium. Low self-discharge, is about 0.03% per month, which is less than 1/100 of Ni-MH batteries, the weight of our battery is 30% lower than Ni-MH batteries. - The package does not include a charger, so it is recommended to use the matching charger. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083K38DXW | | Amperage | 2.3 Amps | | Battery Charge Time | 3.7 Hours | | Best Sellers Rank | #329,632 in Health & Household ( See Top 100 in Health & Household ) #222 in 9V Batteries | | Brand | Kratax | | Built-In Media | 4pack 9v rechargeable lithium-ion batteries | | Charging Time | 3.7 Hours | | Color | 9v batteries only | | Compatible Devices | Camera, Clock, Radio, Remote, Remotes, Smoke Alarm, Toy | | Connector Type Used on Cable | wireless | | Customer Reviews | 4.5 out of 5 stars 50 Reviews | | Item Dimensions D x W x H | 0.63"D x 0.98"W x 0.63"H | | Item Weight | 5 Ounces | | Manufacturer | KrataxHKDirect | | Model Number | 9v rechargeable lithium-ion batteries | | Output Voltage | 8.4 Volts (DC) | | Product Dimensions | 0.63"D x 0.98"W x 0.63"H | | Unit Count | 1 Count | ## Product Details - **Brand:** Kratax - **Color:** 9v batteries only - **Product Dimensions:** 0.63"D x 0.98"W x 0.63"H - **Item Weight:** 5 Ounces - **Output Voltage:** 8.4 Volts (DC) ## Images ![Kratax 9v Rechargeable Batteries 4 Pack 850mAh high Capacity 9 Volt 6F22 Lithium Batteries Rechargeable, 1000 Cycles for Smoke Alarms Guitar Multimeter Microphones-Charger NOT Included - Image 1](https://m.media-amazon.com/images/I/61TBmjB4DKL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great battery for the buck! *by D***E on April 12, 2023* I got these to replace a lot of my 9 Volt applications since they're very close to the electrical requirements of alkaline batteries WITH OUT THE FEAR OF LEAKAGE. I've had it with Duracell's leaking batteries and replaced all my batteries with these So far, no leak and good performance does it for me!! ### ⭐⭐⭐⭐⭐ New batteries look great! *by D***A on April 17, 2025* 16APR25 Of the four, 3 measured better than 850mAh and one a not too bad 822mAh (see photo). I used a 100mA charging and discharging rate. Using a RC3563 battery tester to measure resistance I found a nominal 150mΩ value. This is the lowest value I've ever seen in a 9V. I'm not sure whether, or not, the battery's internal circuitry will, non destructively, protect things in a short circuit situation. That's 60A!! ### ⭐⭐⭐⭐⭐ Only purchase once. *by R***W on August 21, 2022* They function well for 9volt applications, although the life is more limited than non rechargeable batteries. I bought a second set to change out more often. ## Frequently Bought Together - Kratax 9v Rechargeable Batteries 4 Pack 850mAh High Capacity 9volt 6F22 Lithium-ion Batteries, 8.7V, 1000 Cycles Long-lasting, for Smoke Alarms Guitar Multimeter Toy Microphones-Charger not included - 9v Rechargeable Batteries Kratax 4Pack 850mAh High Capacity 9volt 6F22 Lithium-ion Batteries with Fast Charger, 1000 cycles Long-lasting, for Smoke Alarms Guitar Microphones Multimeter Cameras Remotes - Kratax 9v Rechargeable Batteries 2 Pack 850mAh High Capacity 9volt 6F22 Lithium-ion Batteries, 8.7V, 1000 Cycles Long-Lasting, for Smoke Alarms, Guitar, Multimeter, Microphones-Charger not Included --- ## 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.tn/products/181909643-kratax-9v-rechargeable-batteries-4-pack-850mah-high-capacity-9](https://www.desertcart.tn/products/181909643-kratax-9v-rechargeable-batteries-4-pack-850mah-high-capacity-9) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-27*