Konnwei BK400 – Wireless Battery Tester, AGM, LiFePO4, 6V–48V

Product Description

The Konnwei BK400 Wireless Battery Tester is a professional-grade car battery tester available at naredi.in, supporting 6V–48V via Bluetooth 5.2. It delivers a complete automotive battery test through a smartphone app — no cables, no clutter. Designed for Indian vehicle owners battling extreme heat, dust, and voltage fluctuations that silently kill batteries.

Features & Benefits

• 6V–48V Multi-Voltage: Covers cars, bikes, e-rickshaws, and commercial vehicles across India.
• Bluetooth 5.2 Wireless: Instant pairing — test roadside without tangled wires.
• All Battery Types: Supports Flooded, AGM, EFB, VRLA, GEL, and LiFePO4 — every battery sold in India.
• Real-Time Waveform: Visual voltage waveform reveals hidden faults ordinary testers miss.
• Monitor 6 Devices: Perfect for fleet owners and auto workshops managing multiple vehicles.
• GPS Car Locator: Locate your parked vehicle via the app at no extra cost.
• Free Firmware Updates: Device stays current — excellent value for money in India.

Detailed Specifications

How To Use

1. Download the "BK400" app from Google Play or the App Store.
2. Clip the BK400 onto your vehicle battery terminals.
3. Pair via Bluetooth 5.2 on your smartphone.
4. Run the test and view instant results on screen.

What's Included in the Box

• Konnwei BK400 Wireless Battery Tester
• User Manual

Comparison: Konnwei BK400 – Wireless Battery Tester, AGM, LiFePO4, 6V–48V vs Generic Alternatives

Understanding the Technology

The BK400 uses conductance-based battery testing to measure internal resistance and cold cranking amps (CCA) without discharging the battery. Bluetooth 5.2 ensures a stable, low-latency connection even in high-EMI environments common in Indian auto workshops. This method is far more accurate than voltage-only testing, making it the preferred choice for diagnosing AGM and LiFePO4 batteries increasingly used in modern Indian vehicles.

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
• Returns: 14-day return and exchange policy, COD returns accepted
• Delivery: Free delivery across India, Cash on Delivery available

Frequently Asked Questions

Is this car battery tester compatible with Indian bikes and e-rickshaws?

Yes — the BK400 supports 6V to 48V, covering virtually every vehicle sold in India including two-wheelers, e-rickshaws, and trucks.

How do I check the price in India and place a COD order?

The current ₹ price is displayed on this page; select Cash on Delivery at checkout for hassle-free payment on delivery.

How do I raise a warranty claim?

Contact our support team via WhatsApp / Phone: +91 93112 11157 or hello@naredi.in Monday–Saturday, 9 AM–6 PM IST.

Does the app work on Indian Android phones with older OS versions?

The "BK400" app is compatible with both Android and iOS; most smartphones sold in India from 2018 onwards are fully supported.

The estimated lead time is 2 -3 days, but naredi.in or its affiliates are not responsible for delays or damages by courier. Any damages during transit need to be reported within 24 hours of receiving the shipment. We will try our best to help you resolve the issue.
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We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. 
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