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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BT780 Battery Tester w/Printer 24v/12v/6v, Car Alternator Analyzer | Upgraded of BT705, 100-2000CCA Car Battery SOC SOH Cranking Starter Charging System Alternator Tester for Marine Heavy Duty

Product ID: 157172951

Details

Brand
FOXWELL
Color
Foxwell BT780
Item Weight
16 ounces
Power Source
Battery

🔋Tests 6V/12V/24V batteries, 100-2000 CCA

🔌Independent battery power for anytime use

🖨️Built-in jam-free thermal printer

¥75577

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Diagnose like a pro, print like a boss — never miss a beat with FOXWELL BT780!

POWER ANYWHERE ANYTIME - Built-in battery powers the tester independently—no need to drain or connect to the tested battery.
FLAGSHIP 3 VOLTAGE TESTING - Accurately diagnose 6V, 12V, and 24V batteries up to 2000 CCA for cars, trucks, marine & more.
INSTANT PROFESSIONAL REPORTS - Jam-free thermal printing delivers clear, on-the-spot diagnostic reports—no apps or subscriptions required.
RUGGED DESIGN FOR DAILY PROS - Heavy-duty clamps, reinforced 6.5 ft cables, large LCD, and protective case built for nonstop professional use.
CUSTOM PROFILES TRACEABILITY - Supports 4 user profiles with customizable reports for seamless shop management and customer trust.

The FOXWELL BT780 is a professional-grade battery tester and automotive analyzer designed for 6V, 12V, and 24V batteries ranging from 100 to 2000 CCA. Featuring an independent built-in battery, it enables stable diagnostics without draining the tested battery. It offers comprehensive testing including voltage, internal resistance, SOC, SOH, cranking, and charging system analysis. With a fast, jam-free thermal printer and customizable user profiles, it streamlines professional workflows for repair shops, dealerships, fleets, and DIYers. Ruggedly built with reinforced cables, heavy-duty clamps, and a clear LCD, the BT780 covers a wide range of battery types and service scenarios, making it an indispensable tool for daily automotive battery diagnostics.

Specifications

ASIN	B07XFHGZ3N
Best Sellers Rank	#128,024 in Automotive ( See Top 100 in Automotive ) #137 in Battery Testers
Brand Name	FOXWELL
Color	Foxwell BT780 6v/12v/24v Battery Tester
Customer Reviews	4.2 4.2 out of 5 stars (148)
Included Components	battery tester
Item Weight	16 ounces
Manufacturer	foxwell
Measurement Type	Battery Tester
Minimum Operating Voltage	5 volts
Model	Foxwell BT780 Digital Battery Analyzer
Number of Items	1
Part Number	foxwell bt780
Power Source	Battery Powered
Style Name	6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts, ideal for repair shops, mechanicians, dealerships, battery retailers and DIYers
UPC	712321445025
Upper Temperature Rating	60 °C

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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¥75577

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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