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

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

🔋12V/24V dual voltage testing

🌡️Accurate -20°C to 60°C operation

🖨️Built-in thermal printer

Description

🔧 Never get stranded again—test like a pro, print like a boss!

INSTANT PRINTED REPORTS - Print clear, professional battery health reports on the spot—no subscriptions or fees.
SELF POWERED INDEPENDENCE - Runs on internal battery for fast, reliable testing anywhere, no vehicle power needed.
MULTI USER CUSTOM REPORTS - Supports 4 users with personalized shop/technician names and battery serial tracking.
PRO LEVEL BATTERY DIAGNOSTICS - Get precise SOH, SOC, voltage & CCA readings for cars, trucks, motorcycles & more.
RUGGED READY FOR ANY CLIMATE - Built tough with 6.5-ft leads and 99.9% accuracy from freezing winters to scorching summers.

The FOXWELL BT780 is a professional-grade 12V/24V car battery tester and load analyzer with a built-in thermal printer. It delivers highly accurate diagnostics including SOH, SOC, voltage, and cranking system checks across a wide temperature range (-20°C to 60°C). Powered by its own internal battery, it enables independent testing without vehicle power. Designed for heavy-duty use, it supports multiple users and custom reports, making it ideal for workshops, fleet managers, and mobile mechanics servicing cars, trucks, motorcycles, boats, and heavy machinery.

Specifications

ASIN	B07XFHGZ3N
Brand	FOXWELL
Brand Name	FOXWELL
Color	Foxwell BT780 12v/24v Battery Tester
Colour	Foxwell BT780 12v/24v Battery Tester
Compatible Devices	car, truck, motorcycle, golf cart, boat, RV, bus, heavy machinery
Customer Reviews	4.4 out of 5 stars 131 Reviews
Included Components	battery tester
Item Weight	454 g
Item weight	454 g
Manufacturer	foxwell
Measurement Type	Battery Tester
Min. Operating voltage	6 Volts
Minimum Operating Voltage	6 Volts
Model	Foxwell BT780 Digital Battery Analyzer
Part Number	foxwell bt780
Power Source	Battery Powered
Power source	Battery Powered
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 Style 6V 12V 24V Battery Tester with Printer For Car Heavy Duty Truck Buses Marine Motorcycle ATV SUV Boat Yacht Golf Carts See more
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

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

5 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews