Konnwei BK400 Wireless Battery Monitor - 6V 12V 24V & 48V

Product Description Konnwei BK400 Battery Tester is a professional battery diagnostic tool designed to quickly check the condition and performance of vehicle batteries. It provides accurate testing of battery health, starting performance, and charging system, helping users identify weak or failing batteries before they cause starting problems. KEY SPECIFICATION 1. Battery Tests: 6V 12V 24V 48V Flooded, AGM Flat/Spiral, EFB, VRLA, GEL, Lithium Battery 2. System Tests:6V 12V 24V 48V Cranking/Charging System 3. Data Display Type: Waveform 4. INPUT: 3V-60V--3mA 5. Wireless Connectivity: Bluetooth 5.2 6. App Support:Android By Google Play and iOS by App Store ( APP name " BK400 " ) 7. Operating Languages: Chinese, English， Deutsch， French， Japanese， Korean， Dutch， Russian， Spanish, italian，Portuguese， Polish， Persian. 8. BK400 APP Advantage: Waveform/ Voltage Collection/ Support to Modify Bluetooth Name/ Firware Update Freely/ Problem Of Feedback /Share Reporter /Language Setting. Function & Feature ▸Share Reporter ▸Update Freely ▸ DIY bluetooth name ▸ Real-Time Voltage & Waveform ▸ Cranking Test ▸ Charging Test ▸ Temperature Monitor ▸ GPS Locate Your Car ▸ Monitor 6 Device in one time Understanding the Technology The BK400 uses conductance-based battery testing, sending a low-frequency signal through the battery to measure internal resistance without discharging it — far more accurate than traditional battery load testers. This method detects sulphation and plate degradation early, which is critical given India's extreme heat accelerating battery ageing. Unlike analogue load testers, the digital battery tester algorithm calculates true cold cranking amps (CCA) remaining, giving a precise health snapshot in seconds. Warranty & Support in India Warranty: 1-year warranty against manufacturing defects Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in — support in English and Hindi Returns: 14-day return and exchange policy, COD returns accepted Contact naredi directly via WhatsApp / Phone: +91 93112 11157 or hello@naredi.in Monday–Saturday, 9 AM–6 PM IST.