--- product_id: 216009583 title: "KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover" brand: "konnwei" price: "¥12709" currency: JPY in_stock: true category: "Konnwei" url: https://www.desertcart.jp/products/216009583-konnwei-kw650-6v-12v-car-battery-tester-100-2000-cca store_origin: JP region: Japan --- # 100-2000 CCA load testing range 99.5%+ accuracy with STM32 chip 6V & 12V battery compatibility KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover **Brand:** konnwei **Price:** ¥12709 **Availability:** ✅ In Stock ## Summary > 🔧 Diagnose Like a Pro, Drive with Confidence! ## Quick Answers - **What is this?** KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover by konnwei - **How much does it cost?** ¥12709 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/216009583-konnwei-kw650-6v-12v-car-battery-tester-100-2000-cca) ## Best For - konnwei enthusiasts ## Why This Product - Trusted konnwei brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Waveform Wizardry:** Exclusive one-key voltage waveform analysis for real-time battery health insights—perfect for pros and DIYers alike. - • **Pro-Grade Precision:** Powered by STM32 chip delivering lightning-fast, 99.5%+ accurate diagnostics in seconds. - • **All-in-One System Check:** Beyond batteries—tests starters and alternators, ensuring your vehicle’s entire power system is road-ready. - • **Global Language Support:** Switch between 12 languages effortlessly, making professional-grade testing accessible worldwide. - • **Universal Battery Mastery:** Tests all 6V & 12V batteries including flooded, AGM, spiral & gel types—one tool for every ride. ## Overview The KONNWEI KW650 is a versatile automotive battery and alternator tester compatible with 6V and 12V batteries ranging from 100 to 2000 CCA. Featuring a high-precision STM32 chip, it delivers over 99.5% accurate results within seconds, supports multiple battery types, and offers exclusive voltage waveform analysis. Ideal for cars, boats, motorcycles, and lawn mowers, it also tests starters and alternators, supports 12 languages, and provides actionable health insights to prevent unexpected battery failures. ## Description Buy KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover: Battery Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 【6 & 12 Volts Battery Tester】 As the upgraded version of KW600, KW650 can test all 6V and 12V 100-2000CCA batteries including regular flooded, AGM flat plate, AGM spiral, or gel batteries. The perfect automotive battery testers to diagnose the batteries of car, boat, lawn mowers, etc. Perfect household tool and present for daily use! NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE. - 【One-key Waveform Analysis】The exclusive function on KW650 battery analyzer is the voltage waveform analysis, for the beginners, it helps to track the real-time voltage changing to find the battery issue, for the professional repair store, it’s continuous voltage monitoring results can be uploaded to computer then compare it to achieve the analysis of in-car systems. - 【 >99.5% Accuracy】Thanks to KW650’s powerful STM-32 chip, it provides more than 99.5% precise testing reports within milliseconds, greatly improved the testing speed compared to other battery testers. Besides KW650 is one of the few automotive battery and alternator testers that supports UPDATE function. - 【Display Overall Batteries Data】Except give you the basic battery parameters such as voltage, internal resistance, cold cranking amp, battery health and charge status, KW650 load tester will also give professional advice based on these data then you can decide whether to replace or charge the battery, help you know battery status in advance to prevent possible battery failures. - 【Starter& Alternator Tester】KW650 is not only a great battery load tester that tests batteries cranking & charging system but also can test alternator's charging and starter's cranking conditions. And it can switch up to 12 languages for different needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B088CP8VPC | | Best Sellers Rank | #353,638 in Automotive ( See Top 100 in Automotive ) #265 in Battery Testers | | Brand Name | KONNWEI | | Color | KW650 | | Compatible Devices | car, boat, motorcycle, lawn mower | | Customer Reviews | 4.5 4.5 out of 5 stars (514) | | Included Components | STM32 | | Item Dimensions | 0.79 x 2.76 x 4.92 inches | | Manufacturer | KONNWEI | | Measurement Type | Voltmeter, Ammeter | | Minimum Operating Voltage | 8 volts | | Model | KW650 | | Number of Items | 1 | | Part Number | KW650 | | Power Source | Battery Powered | | Specification Met | [Cautious] Shenzhen Jiawei Hengxin Technology Co., Ltd. Internal Certifications Or Quality Standards | | Style Name | Voltage Tester | | Upper Temperature Rating | 70 °C | ## Product Details - **Brand:** KONNWEI - **Color:** KW650 - **Item dimensions L x W x H:** 0.79 x 2.76 x 4.92 inches - **Power Source:** Battery Powered - **Style:** Voltage Tester ## Images ![KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover - Image 1](https://m.media-amazon.com/images/I/61bSGT6eseS.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - KONNWEI KW650 6V 12V Car Battery Tester, 100-2000 CCA Battery Load Tester Automotive Battery and Alternator Tester for Vehicles/Marine/Motorcycle/Lawn Mover - KONNWEI KW208 12V Car Battery Tester, 100-2000 CCA Load Tester Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Truck Marine Motorcycle SUV Boat - KONNWEI KW850 Professional OBD2 Scanner Auto Code Reader Diagnostic Check Engine Light Scan Tool for OBD II Cars After 1996(Original) --- ## 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.jp/products/216009583-konnwei-kw650-6v-12v-car-battery-tester-100-2000-cca](https://www.desertcart.jp/products/216009583-konnwei-kw650-6v-12v-car-battery-tester-100-2000-cca) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-07*