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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Description

🔧 Power up your diagnostics with FOXWELL BT780 — never get caught off-guard again!

INSTANT ON SITE PRINTOUTS - Generate professional battery health reports anytime, anywhere.
RUGGED WEATHERPROOF DESIGN - Reliable performance from freezing cold to scorching heat.
SELF POWERED FOR TRUE ACCURACY - Internal battery enables off-grid testing without vehicle power.
COMPREHENSIVE BATTERY COMPATIBILITY - Supports flooded, AGM, gel, EFB, and start-stop AGM batteries.
PRO LEVEL MULTI VOLTAGE DIAGNOSTICS - Test 6V, 12V, and 24V batteries & systems with precision.

The FOXWELL BT780 is a professional-grade car battery and system tester supporting 6V, 12V, and 24V batteries. Featuring a built-in thermal printer, multi-user report customization, and self-powered operation, it delivers up to 99.9% accuracy in extreme weather conditions. Compatible with a wide range of battery types and equipped with advanced diagnostics, it’s the ultimate tool for technicians and fleet managers aiming to avoid roadside emergencies and costly downtime.

Specifications

Brand	FOXWELL
Power Source	Battery Powered
Style	Regular
Colour	Black
Item Weight	1 Pounds
Min. Operating Voltage	6 Volts
Specification Met	CE
Measurement Type	Battery Tester
UPC	712321445025
Manufacturer	foxwell
Country of Origin	China
Model number	Foxwell BT780 Digital Battery Analyzer
Number of Memory Sticks	1
Special Feature	1. Replaceable test lines, <br>10. Advanced starter/alternator test, <br>11. Quick starter analysis without disabling the ignition, <br>12. Multilingual menu and test results-Chinese, Dutch, English, French, German, Hungarian, Japanese, Korean, Polish, Portuguese, Russian and Spanish, <br>13. Dedicatedly developed to test start-stop AGM and EFB batteries, and equipped with 0-1000A AC and DC current clamp(optional), <br>14. Does not emit light, heat or spark, or discharge battery battery - keeps operation safe for all levels of users, <br>2. Advanced conductance test technology makes test more convenient and accurate, <br>3. Ripple voltage test allows the technicians to check the output voltage of alternator quickly, <br>4. Built -in thermal printer makes it possible for the technicians to print test results at anytime and anywhere, <br>5. SOC and SOH test result display makes technicians easier and faster to judge the battery status, <br>6. Tests multiple battery types - regular flooded, AGM flat plate, AGM spiral and gel, start-stop AGM and EFP batteries, <br>7. Tests multiple rating systems - CCA, BCI, MCA, JIS, DIN, IEC, EN, SAE, <br>8. Quick and accurate test result display in just 3 seconds, <br>9. Applicable for 12V battery system and 12V & 24V starting and charging system
Item Weight	454 g
Package Dimensions	36.91 x 27.41 x 8.61 cm; 453.59 g
Item model number	Foxwell BT780 Digital Battery Analyzer
Display Size	3.2 Inches
Voltage	12 Volts
Included Components	battery tester
Are batteries included?	No

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