---
product_id: 325145156
title: "BT780 Car Battery Tester, 12V 24V Battery Load Analyzer with Printer 100-2000CCA Digital Automotive Cranking Charging System Checker for Car Motocycle Heavy Duty Truck Marine SUV Boat"
brand: "foxwell"
price: "€ 710.95"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.es/products/325145156-bt780-car-battery-tester-12v-24v-battery-load-analyzer-printer
store_origin: ES
region: Spain
---

# 12V/24V dual voltage testing Accurate -20°C to 60°C operation Built-in thermal printer BT780 Car Battery Tester, 12V 24V Battery Load Analyzer with Printer 100-2000CCA Digital Automotive Cranking Charging System Checker for Car Motocycle Heavy Duty Truck Marine SUV Boat

**Brand:** foxwell
**Price:** € 710.95
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose like a pro, print like a boss.

## Quick Answers

- **What is this?** BT780 Car Battery Tester, 12V 24V Battery Load Analyzer with Printer 100-2000CCA Digital Automotive Cranking Charging System Checker for Car Motocycle Heavy Duty Truck Marine SUV Boat by foxwell
- **How much does it cost?** € 710.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/325145156-bt780-car-battery-tester-12v-24v-battery-load-analyzer-printer)

## 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 Printed Reports:** Print clear, professional battery health reports on the spot—no subscriptions needed.
- • **Self-Powered Independence:** Runs on internal battery for off-grid testing—no vehicle power required.
- • **Multi-User & Custom Reports:** Supports 4 users with personalized shop/tech names and serial tracking for flawless record-keeping.
- • **Pro-Level Battery Diagnostics:** Get precise SOH, SOC, CCA & cranking data for cars, trucks, boats & more.
- • **Rugged & Ready for Any Environment:** Built tough with 6.5-ft leads, protective case, and reliable accuracy in extreme temps.

## Overview

The FOXWELL BT780 is a professional-grade 12V/24V car battery tester and load analyzer featuring advanced SOH/SOC diagnostics, a built-in thermal printer, and multi-user report customization. Designed for heavy-duty use across vehicles from motorcycles to heavy trucks, it delivers 99.9% accurate results in extreme temperatures and operates independently on its own internal battery—perfect for mobile mechanics and fleet managers seeking reliable, on-the-go battery health insights.

## Description

test 12v/24v automotive batteries

Review: Comme commander,livraison rapide.
Review: This battery, starting, a d charging system tester is excellent. I purchased it to .ake my life easier when doing an inspection that requires this information. It comes in a nice hard carrying case. I open the case, attach the sufficiently sized alligator clips to the tester body, then attach the clips the the battery being tested. I can test only a battery outsideof a vehicle if I want to. Or I can test the battery in a vehicle, then proceed to start the vehicle in order to test the starter cranking voltage, then once running I can finish by testing the alternator and charging system. Once the tests are complete and the program has run, I can print out a receipt that states whether the battery and subsequent tests have passed or failed. It is all very intuitive and easy to use. Similar to an alignment machine it really walks you through the steps. So, this battery, starting, and charging system tester, is a winner in my book.

## Features

- UPGRADE TO TRUE PRO TESTING - Step up from the trusted FOXWELL BT705 car battery tester to the BT780 with 6V SOH/SOC testing, 12V/24V cranking & charging diagnostics, a built-in printer & custom shop/technician names. Powered by its own internal battery, the BT780 runs fully independent diagnostics—no reliance on vehicle power for faster, more accurate results.
- KNOW BATTERY STATUS IN ADVANCE – Never get caught with a dead battery again. The BT780 checks overall battery health, starter status, and alternator output, delivering precise reports on voltage, resistance, SOC, SOH, and charging performance. Avoid costly tows and roadside breakdowns with professional-level insight at your fingertips.
- PRINT CLEAR REPORTS AT NO EXTRA FEE – Provide customers or keep records with clear printed reports in seconds. Each includes voltage, CCA, SOC/SOH, and cranking details. Comes with 3 free rolls of 57×30 mm thermal paper, with affordable refills available online. Build trust and save money—no subscription, no extra fees.
- CUSTOM REPORTS & MULTI‑USER TRACKING – Personalize every report with shop or technician names and unique battery serial numbers. Supports up to 4 user accounts—ideal for workshops, fleet maintenance, and warranty claim documentation. Keep records organized, professional, and error-free.
- RELIABLE ACCURACY IN ANY WEATHER- While many testers fail in freezing winters or scorching summers, leaving you with unreliable readings, the FOXWELL BT780 ensures professional 99.9% accuracy from -20 °C to 60 °C. 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.
- SELF-POWERED FOR SUPERIOR RESULTS – Test deeply discharged, stored, or off-grid batteries without external power thanks to its built-in battery. Review past test history anytime for quick comparisons. A must-have for mobile mechanics, fleet managers, and technicians who need accurate results on the go.
- BUILT FOR PROFESSIONALS – Built for daily heavy-duty use, this battery and alternator tester features a 3.2″ LCD display, 6.5-ft long leads, rugged clamps, and a protective tool case. With TF card firmware updates, it ensures reliable, future-ready performance in workshops or field use.
- WIDE COVERAGE FOR MULTIPLE VEHICLES – Compatible with 100–2000 CCA Flooded, AGM Flat/Spiral, Gel, EFP, and Start-Stop AGM batteries. Serves cars, trucks, motorcycles, golf carts, RVs, boats, buses, and heavy machinery with unmatched reliability and versatility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XFHGZ3N |
| ASIN  | B07XFHGZ3N |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Foxwell BT780 12v/24v Battery Tester |
| Customer Reviews | 4.4 4.4 out of 5 stars (125) |
| Customer reviews | 4.4 4.4 out of 5 stars (125) |
| Date First Available | 22 September 2019 |
| Date First Available  | 22 September 2019 |
| Included components | battery tester |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | Foxwell BT780 Digital Battery Analyzer |
| Item model number  | Foxwell BT780 Digital Battery Analyzer |
| Manufacturer | foxwell |
| Manufacturer  | foxwell |
| Measurement Accuracy | 0.5 |
| Package Dimensions | 36.91 x 27.41 x 8.61 cm; 453.59 g |
| Package Dimensions  | 36.91 x 27.41 x 8.61 cm; 453.59 g |
| Part number | foxwell bt780 |
| Power source type | Battery Powered |
| Size | foxwell 12v/24v battery analyzer BT780 |
| Special Features | 1. Replaceable test lines |
| Specification met | CE, RoHS, UL |
| Style | 6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts |
| Voltage | 12 Volts |

## Product Details

- **Brand:** FOXWELL
- **Colour:** Foxwell BT780 12v/24v Battery Tester
- **Item weight:** 1 Pounds
- **Power source:** Battery Powered

## Images

![BT780 Car Battery Tester, 12V 24V Battery Load Analyzer with Printer 100-2000CCA Digital Automotive Cranking Charging System Checker for Car Motocycle Heavy Duty Truck Marine SUV Boat - Image 1](https://m.media-amazon.com/images/I/71Exaa-cMgL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 16 February 2025*

Comme commander,livraison rapide.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 7 April 2025*

This battery, starting, a d charging system tester is excellent. I purchased it to .ake my life easier when doing an inspection that requires this information. It comes in a nice hard carrying case. I open the case, attach the sufficiently sized alligator clips to the tester body, then attach the clips the the battery being tested. I can test only a battery outsideof a vehicle if I want to. Or I can test the battery in a vehicle, then proceed to start the vehicle in order to test the starter cranking voltage, then once running I can finish by testing the alternator and charging system. Once the tests are complete and the program has run, I can print out a receipt that states whether the battery and subsequent tests have passed or failed. It is all very intuitive and easy to use. Similar to an alignment machine it really walks you through the steps. So, this battery, starting, and charging system tester, is a winner in my book.

### ⭐⭐⭐⭐⭐ Review
*by D***L on 26 October 2023*

Like the unit, only issue is setting the date and time for the printouts. In the quick tour guide it says to hold the left, down and menu buttons simultaneously. This has no effect. Messaged Foxwell customer support 5 days ago, no word back as of yet.

## Frequently Bought Together

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-09*