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Under $20 Vehicle Battery Testers

Shop the best prices on 8,835 great value under $20 vehicle battery testers. Shopping for vehicle battery testers is easy with Fruugo, with SALE discounts, offers and savings on Woosien, Viewleaf, GreenZech and more. Buy vehicle battery testers online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 3,200
Electronic Automotive Relay Tester Kit For Car Auto Battery Checker 12V NEW
$12.95 Save $5.00 RRP: $17.95
12V 24V Vehicle Battery Current Tester with Bright LCD Display LED Light for Automotive Electrical Diagnostics
$19.95 Save $20.00 RRP: $39.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Volta
$14.95 Save $5.00 RRP: $19.95
Brushless Motor Tester Electro Car E-Bike Scooter Brushless Motor Controller Tester 24V/36V/48V/60V/
$12.95 Save $37.00 RRP: $49.95
Electronic Automotive Relay Tester Kit For Car Auto Battery Checker 12V NEW
$12.95 Save $5.00 RRP: $17.95
Car Key ECU Test Coil, Car Induction Signal Detection Card, Automotive Key Lock Chip Antenna Tester, Automatic Ignition Coil Tester for Checking The L
$15.95 Save $10.00 RRP: $25.95
Waterproof Lcd Display Digital Hour Meter Inductive Timer For Bike Motorcycle Atv Snowmobile Engine, Black
$7.95 Save $22.00 RRP: $29.95
DC18V-60V to 12V Converter 20A 240W Golf Cart 24V 36V 48V Step Down to 12V
$16.95 Save $9.00 RRP: $25.95
Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay T
$18.95 Save $5.00 RRP: $23.95
IPX7 Waterproof Battery Monitor with Bracket 7-100V,Car Motorcycle Golf Cart Battery Meter Buzzer Alarm & Temperature
$21.95 Save $21.00 RRP: $42.95
Battery Capacity Display Voltmeter LED Digital Voltage Meter with Touch-ON OFF Switch Car Motorcycle
$8.95 Save $13.00 RRP: $21.95
2024 Wireless Bluetooth 12v Battery Monitory Bm6 With Car Battery Health Check App Monitoring Battery Tester unbrand
$21.95 Save $11.00 RRP: $32.95
2025 Automotive Test Light with 5-120V LED Digital Voltage Display, Circuit Tester with Voltmeter & Dual Color Polarity Indicator
$17.95 Save $17.00 RRP: $34.95
Battery Capacity Indicator Dc 8v-100v Lead Acid Lithium Lifepo4 Car Motorcycle Voltmeter Voltage Gauge 12v 24v 48v 72v
$11.95 Save $40.00 RRP: $51.95
Multifunctional Auto Circuit Tester (6-24V) for Em285 - Electrical System Test Pen
$21.95 Save $87.05 RRP: $109.00
ANENG Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Tester LED Light
$14.95
Autel PowerScan PS100 Electrical Automotive Circuit Tester Tool 6-24V AVOmeter
$15.95
RS-550 Motor - Suitable for Micro Power Tools with DC Voltage Range of 12-24V and Speed of 21000 Rpm
$18.95 Save $26.00 RRP: $44.95
Automatic Constant Temperature Diesel Filter Heater 120W 12V/24V for Cars and Trucks
$17.95 Save $36.05 RRP: $54.00
5X Loud Hailer Lipo Battery Voltage Alarm Display Checker 2-3S LED Display for RC Helicopter Quadco
$19.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltage Alarm for Lithium
$14.95
Brake Fluid BF100 Tester Diagnostic Tool Inspection Detector For DOT3 DOT4 DOT5.1 71g
$19.95 Save $17.00 RRP: $36.95
Rc 8 Digital Battery Capacity Checker Servo Tester Lcd Backlight Li-ion Nimh Nicd (a-1b)
$18.95 Save $19.00 RRP: $37.95
Green Backlit LCD Display Battery Capacity Voltage Meter Tester Voltmeter Monitor Woosien
$16.95
White Backlit GY-6H Battery Power Display 12-48V Universal Battery Capacity Indicator Voltmeter Woosien
$15.95
Purple 5Pcs Car Ground Wire Kit Copper Clad Aluminum 0 48V for Better Electrical Conductivity Car Boat Truck
$18.95 Save $22.00 RRP: $40.95
12V Digital Car Battery Tester Voltmeter for Motorcycle E Scooter Boat SUV Charging System Analyzer
$17.95 Save $22.00 RRP: $39.95
Automotive Circuit Tester with LCD Display Voltage Bulb Load Measurement 12V 24V Power Polarity Detector for Car Electrical System
$17.95 Save $21.00 RRP: $38.95
DC 12V LED Digital Voltmeter for Car Motorcycle Boat
$16.95 Save $22.00 RRP: $38.95
ANENG BT-170 12V Electric Vehicle Battery Tester
$16.95
Ebike G20 Display 36V 48V 5 Pin+2 Pins SM Connector Display LED Instrument for Electric Bicycle Intelligent Control
$18.95 Save $40.05 RRP: $59.00
Battery Meter Waterproof Lithium Battery Power Display Panel Capacity Voltage Indicator Monitor for RV Vehicle 3 Series
$16.95 Save $17.00 RRP: $33.95