✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Lightweight Autometer Bt-400s Autogage 12v Heavy Duty Battery Tester Best Choice [0bKplWHS]

$55.99 $179.99 -69%

Lightweight Autometer Bt-400s Autogage 12v Heavy Duty Battery Tester Best Choice [0bKplWHS] The BT-400S tests 12V heavy-duty, auto, truck, commercial, and marine batteries as well as 12/24 Volt starter and charging systems. Battery size is not required to be entered into the unit. Sim

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Lightweight Autometer Bt-400s Autogage 12v Heavy Duty Battery Tester Best Choice [0bKplWHS]

 

The BT-400S tests 12V heavy-duty, auto, truck, commercial, and marine batteries as well as 12/24 Volt starter and charging systems. Battery size is not required to be entered into the unit. Simply choose between automotive or truck battery type batteries for testing. Eliminates tester input errors and allows the testing of batteries of unknown size. LED bar graph and numeric LCD display immediately indicate battery condition upon pressing the TEST button. Includes 4 ft heavy-duty abrasion resistant cables for vehicles with hard to reach battery compartments. 

 

- Battery Condition is Shown in Percentage of Capacity
- Uses Conductance Technology
- Tests 12V, 24V, & 36V Starting/Charging Systems
- Tests 42V Mild Hybrid Starter/Charging Systems
- Tests 6 & 12V Batteries - Multi-Colored Bar Graph Displays Battery Condition
- Low Voltage LED Lights when Charging is Necessary
- Bad Cell is Detected and Displayed
- Reverse Polarity Protection
- Made in USA

 

Specifications

Battery Test Range (Auto/Truck): 1000 to 1700 CCA
Battery Capability: Tests all types of 12V lead acid batteries
Display: Alpha-numeric displays indicates % of available battery capacity and multi-colored bar graph shows battery condition
Operating Voltage Range: 5.5V to 39.9V
Capacity/Volts Display: LED- 3 digits
Alternator Test: Tests and displays alternator ripple
Reverse polarity protection: Yes
Shipping Wt.: 1.25 lbs
Warranty: 12 Months

What Our Customers Say

January 1, 2026

Absolutely no complaints!

It's a simple, and an extremely elegant solution.

- Simone X..

January 1, 2026

Absolutely no complaints!

A great product that feels exceptionally premium.

- Rachel B..

January 1, 2026

Absolutely no complaints!

An outstanding tool. It works just so great.

- Magnus B..

Write a Review

You Might Also Like

Discover more great products from our collection.

Avis Tray

Avis Tray

(118)
$28.99 $92.99 -69%
Ultrimax 1 - Bs. 166

Ultrimax 1 - Bs. 166

(789)
$18.99 $60.99 -69%
Wild Shore

Wild Shore

(155)
$59.99 $191.99 -69%
Hugo Boss Hugo HG1262 807

Hugo Boss Hugo HG1262 807

(514)
$24.99 $79.99 -69%
30

30" x 71" D-Top Desk Shell

(74)
$50.99 $163.99 -69%
MTW Skid Steer Root Ripper

MTW Skid Steer Root Ripper

(366)
$50.99 $163.99 -69%
Adata ASX8200PNP-2TT-C

Adata ASX8200PNP-2TT-C

(824)
$30.99 $99.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY