---
product_id: 157172951
title: "24V 12V Car Battery Tester with Printer, Foxwell BT780 Professional Battery Load Analyzer, 100-2000CCA Automotive Cranking Charging System Checker for Motocycle Heavy Duty Truck Marine SUV & Auto Shop"
brand: "foxwell"
price: "$678"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/157172951-24v-12v-car-battery-tester-with-printer-foxwell-bt780-professional
store_origin: NZ
region: New Zealand
---

# 100-2000 CCA range Operates -20°C to 60°C Built-in thermal printer 24V 12V Car Battery Tester with Printer, Foxwell BT780 Professional Battery Load Analyzer, 100-2000CCA Automotive Cranking Charging System Checker for Motocycle Heavy Duty Truck Marine SUV & Auto Shop

**Brand:** foxwell
**Price:** $678
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose, Print, and Dominate Your Battery Game!

## Quick Answers

- **What is this?** 24V 12V Car Battery Tester with Printer, Foxwell BT780 Professional Battery Load Analyzer, 100-2000CCA Automotive Cranking Charging System Checker for Motocycle Heavy Duty Truck Marine SUV & Auto Shop by foxwell
- **How much does it cost?** $678 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/157172951-24v-12v-car-battery-tester-with-printer-foxwell-bt780-professional)

## Best For

- foxwell enthusiasts

## Why This Product

- Trusted foxwell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant On-the-Spot Reports:** Integrated thermal printer delivers clear, customer-ready battery health reports—no apps or fees
- • **True Off-Grid Testing Power:** Built-in battery lets you test deeply discharged or stored batteries anywhere, anytime
- • **Multi-User & Custom Tracking:** Supports 4 user profiles with personalized reports for seamless workshop or fleet management
- • **Pro-Grade Precision Diagnostics:** Advanced 6V/12V/24V testing with 99.9% accuracy even in extreme temperatures
- • **Universal Battery Compatibility:** Covers Flooded, AGM, Gel, EFB, and Start-Stop AGM batteries from motorcycles to heavy-duty trucks

## Overview

The FOXWELL BT780 is a professional-grade 6V/12V/24V car battery tester with a built-in thermal printer and internal power source, delivering fast, accurate diagnostics across a wide 100-2000 CCA range. Designed for automotive shops, fleet managers, and mobile technicians, it offers multi-user tracking, extreme temperature reliability (-20°C to 60°C), and compatibility with nearly all battery types, ensuring you never miss a beat in battery health and charging system performance.

## Description

Full description not available

## Features

- PRO-GRADE BATTERY TESTING WITH BUILT-IN POWER & PRINTER - Take your battery analyzer to the next level with the advanced FOXWELL BT780, building upon the trusted BT705 with enhanced 6V SOH/SOC testing, precise 12V/24V cranking & charging diagnostics, and a built-in printer for on-the-spot reports. This automotive battery tester's built-in power supply provides faster, more accurate results with no reliance on vehicle power.
- PRINT CLEAR REPORTS AT NO EXTRA FEE - Create clean, detailed, customer-ready reports in seconds using the built-in thermal printer—no app, no subscription, no additional cost. Reports include voltage, CCA, SOC/SOH, cranking time, and alternator output. Comes with 3 free rolls of 57×30 mm thermal paper, with inexpensive refills easily available online. Boost customer trust and provide documentation that tracks battery status.
- CUSTOM REPORTS & MULTI‑USER TRACKING - Personalize every report with shop name, technician ID, or battery serial numbers for clean, traceable records. Supports up to 4 user accounts—ideal for workshops, dealerships, and fleet maintenance teams that need consistent, error-free documentation. Keep every test organized, professional, and easy to audit.
- CONSISTENT ACCURACY IN COLD WEATHER - While many basic testers fail in freezing winters or scorching summers, leaving you with unreliable readings, this professional car battery tester can work from -20 °C to 60 °C ensuring 99.9% accuracy. Whether you’re checking a car in a snowstorm or diagnosing an RV under the blazing sun, you’ll always get precise results—saving you stress, money, and time on the road.
- BUILT-IN BATTERY POWER FOR UNMATCHED CONVENIENCE - Unlike most battery load testers that depend on vehicle power, the BT780’s built-in battery lets you test deeply discharged, stored, or off-grid batteries independently. Perfect for mobile mechanics, fleet service trucks, RV techs, and roadside assistance professionals who need true go-anywhere reliability.
- DESIGNED FOR PROFESSIONAL USE - Built for automotive shops, fleet maintenance, and mobile technicians, the battery and alternator tester features a durable design with a 3.2″ LCD display, 6.5-ft long leads, rugged clamps, and a protective case. With TF card firmware updates, it ensures reliable, future-ready performance in workshops or field use.
- PREVENT DEAD BATTERIES & COSTLY BREAKDOWNS - Avoid unexpected failures with comprehensive diagnostics covering battery condition, starter performance, and alternator output. This battery tester with printer provides technician-trusted measurements for voltage, internal resistance, SOC, SOH, and charging efficiency—allowing you Avoid costly tows and roadside breakdowns. Perfect for shops and fleets that demand accuracy and accountability.
- WIDE COVERAGE FOR PROS AND VEHICLES - Supports 100–2000 CCA Flooded, AGM Flat/Spiral, Gel, EFB, and Start-Stop AGM batteries. Built for auto technicians, fleet managers, and battery retailers testing cars, SUVs, trucks, motorcycles, ATVs, RVs, vans, boats, buses, tractors, forklifts, generators, and heavy-duty commercial equipment. One tool covers nearly every battery you encounter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | FOXWELL |
| Power Source | Battery Powered |
| Style | 6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts |
| Color | Foxwell BT780 12v/24v Battery Tester |
| Item Weight | 16 ounces |
| Min. Operating Voltage | 5 Volts |
| Measurement Type | Battery Tester |
| UPC | 712321445025 |
| Manufacturer | foxwell |
| Item Weight | 1 pounds |
| Package Dimensions | 14.53 x 10.79 x 3.39 inches |
| Item model number | Foxwell BT780 Digital Battery Analyzer |
| Manufacturer Part Number | foxwell bt780 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** FOXWELL
- **Power Source:** Battery Powered
- **Style:** 6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts
- **Color:** Foxwell BT780 12v/24v Battery Tester
- **Item Weight:** 16 ounces

## Images

![24V 12V Car Battery Tester with Printer, Foxwell BT780 Professional Battery Load Analyzer, 100-2000CCA Automotive Cranking Charging System Checker for Motocycle Heavy Duty Truck Marine SUV & Auto Shop - Image 1](https://m.media-amazon.com/images/I/71sm-aSm4aL.jpg)

## Questions & Answers

**Q: How you adjust the time and date?**
A: Good day,
Sorry for the late reply because Chinese New Year holiday.
Here is the video, please note to hold left key, down key and the menu key to change the date.
Anything else we could help, please contact us via Amazon messages.
Stay healthy.
Mesue

**Q: Does this bt780 battery tester need the voltage higher than 9V to run the printer?**
A: No it has a 9 volt battery in it as well so as long as that battery is good the voltage of the cars battery doesn’t matter

**Q: How to update the software of this BT780 battery tester?**
A: Hello Dear,
Thanks for your inquiry. Here are the steps about how to update this BT780 battery tester:
1. Power on the battery tester and find FORMAT CARD on the main menu.
2. Remove TF card from the tester and connect it to computer via card reader in the case.
3. Download BT780_Firmware_V... from Foxwell website(old and new are all allowed).
4. Put TF card back to the analyzer, and select FIRWARE UPDATE from the Main menu.
5. Input 1234 and click Enter button. After the tester restart automatically, the software is updated successfully.
If you have any other questions, pls feel free to contact us directly below.
Best wishes,
OBDZON
amazonsupport@foxwelltech.com

**Q: Is there U.S. based support?**
A: Hi Wayne C., thanks for your inquiry.
Yes, usually Foxwell BT780 car battery tester supports U.S.
Any other questions, please feel free to contact us for further assistance. :)
May you and your family safe and healthy!
OBDZON
Link to contact us: https://amzn.to/3poRTiH
Email: amazonsupport@foxwelltech.com

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*