How you adjust the time and date?

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

Does this bt780 battery tester need the voltage higher than 9V to run the printer?

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

How to update the software of this BT780 battery tester?

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

Is there U.S. based support?

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

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FOXWELL 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

FOXWELL 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

Product ID: 325145156

Details

Brand
FOXWELL
Colour
Foxwell BT780
Item weight
1 Pounds
Power source
Battery

🔋100-2000 CCA range

🌡️-20°C to 60°C accuracy

🖨️Built-in thermal printer

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R13982

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Don’t get stranded—test like a pro, print like a boss!

INSTANT PRINTED REPORTS - Print clear, professional battery health reports on the spot—no subscriptions, no extra fees.
SELF POWERED INDEPENDENCE - Runs on its own internal battery for fast, reliable testing anywhere, even off-grid or with dead batteries.
CUSTOM MULTI USER TRACKING - Personalize reports with technician/shop names and track up to 4 users—perfect for busy workshops and fleet managers.
PRO LEVEL BATTERY DIAGNOSTICS - Get precise 6V/12V/24V battery, cranking & charging system insights with 99.9% accuracy, rain or shine.
RUGGED READY FOR HEAVY DUTY - Built tough with a 3.2” LCD, 6.5-ft leads, rugged clamps, and firmware updates to future-proof your diagnostics.

The FOXWELL BT780 is a professional-grade 12V/24V car battery tester and load analyzer with a wide 100-2000 CCA range. It features a built-in thermal printer for instant reports, runs independently on its own battery for off-grid use, and delivers 99.9% accurate diagnostics across extreme temperatures (-20°C to 60°C). Designed for heavy-duty use, it supports multi-user tracking and custom reports, making it ideal for workshops, fleet managers, and mobile mechanics.

Specifications

ASIN	B07XFHGZ3N
ASIN	B07XFHGZ3N
Brand Name	FOXWELL
Color	Foxwell BT780 12v/24v Battery Tester
Customer Reviews	4.4 4.4 out of 5 stars (128)
Customer reviews	4.4 4.4 out of 5 stars (128)
Date First Available	22 September 2019
Included Components	battery tester
Item Weight	454 g
Item model number	Foxwell BT780 Digital Battery Analyzer
Manufacturer	foxwell
Manufacturer	foxwell
Measurement Type	Battery Tester
Minimum Operating Voltage	6 Volts
Model	Foxwell BT780 Digital Battery Analyzer
Package Dimensions	36.4 x 27.41 x 8.41 cm; 453.59 g
Part Number	foxwell bt780
Power Source	Battery Powered
Specification Met	CE, RoHS, UL
Style Name	6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts
UPC	712321445025
Unit Count	1 Count
Upper Temperature Rating	60 Degrees Celsius

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