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Under $20 Vehicle Battery Testers

Shop the best prices on 6,834 great value under $20 vehicle battery testers. Shopping for vehicle battery testers is easy with Fruugo, with SALE discounts, offers and savings on Shanghai Yangxin, Dirtypigs, GreenZech and more. Buy vehicle battery testers online safely with Fruugo, with secure payment and fast shipping to Australia.

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1 - 32 of 3,200
Electronic Automotive Relay Tester Kit For Car Auto Battery Checker 12V NEW
$14.95 Save $4.00 RRP: $18.95
ANENG Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Tester LED Light
$20.95
12V 24V Vehicle Battery Current Tester with Bright LCD Display LED Light for Automotive Electrical Diagnostics
$20.95 Save $21.00 RRP: $41.95
ANENG Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Tester LED Light
$15.95
RS-550 Motor - Suitable for Micro Power Tools with DC Voltage Range of 12-24V and Speed of 21000 Rpm
$19.95 Save $30.00 RRP: $49.95
Autel PowerScan PS100 Electrical Automotive Circuit Tester Tool 6-24V AVOmeter
$16.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltage Alarm for Lithium
$15.95
Battery Capacity Indicator Dc 8v-100v Lead Acid Lithium Lifepo4 Car Motorcycle Voltmeter Voltage Gauge 12v 24v 48v 72v
$13.95 Save $45.05 RRP: $59.00
2025 Automotive Test Light with 5-120V LED Digital Voltage Display, Circuit Tester with Voltmeter & Dual Color Polarity Indicator
$18.95 Save $19.00 RRP: $37.95
Electronic Automotive Relay Tester Kit For Car Auto Battery Checker 12V NEW
$13.95 Save $5.00 RRP: $18.95
Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay T
$20.95 Save $6.00 RRP: $26.95
Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Te
$17.95 Save $7.00 RRP: $24.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Volta
$16.95 Save $6.00 RRP: $22.95
KA2284 Battery Capacity Indicator Power Audio Voltage Level Indicator Red Green LED Voltmeter Volume VU Meter
$16.95
Automotive Relay Automotive Relay Short Circuit Tester
$20.95 Save $21.00 RRP: $41.95
Black 12V Digital Voltmeter - Motorcycle and Car Battery Voltage Meter
$14.95 Save $79.05 RRP: $94.00
USB Doctor Voltage Current Tester LCD Display Portable for Mobile Phone Power Bank Charger
$19.95 Save $6.00 RRP: $25.95
3-36V Automotive Circuit Tester Pen, Car Test Lamp, Vehicle Voltage Tester, Determine the Positive and Negative of the Battery, Auto Electrical Tester
$21.95 Save $11.00 RRP: $32.95
Bm550 Car Battery Tester 6v 12v 24v 100-2000 2ah-220ah Battery System Detect Auto Battery Analyzer Boris
$18.95 Save $3.00 RRP: $21.95
6V/12V/24V car and truck voltage tester pen
$16.95 Save $9.00 RRP: $25.95
ANENG BT-172 12V Battery TesterAuto Repair Industry Detection with LED Reverse Display for Car Battery Checker Diagnostic Tool
$11.95 Save $13.00 RRP: $24.95
5PCS 2 In1 1-8S Lipo Battery Voltage Tester, RC Low Voltage Buzzer Alarm, Battery Monitor Checker Te
$16.95 Save $77.05 RRP: $94.00
12V Digital Battery Tester Charging Stytem Analyzer Voltage Alternator Output Test W/LCD Display
$10.95 Save $17.00 RRP: $27.95
RC Watt Meter 100A Power Analyzer Digital LCD Balance Battery Voltage Checker
$10.95 Save $12.00 RRP: $22.95
Digital Brake Fluid Tester Oil Quality Check Pen W/ 5 LED Lights for DOT3 / DOT4 / DOT5
$15.95 Save $25.00 RRP: $40.95
Battery Monitor Digital Battery Capacity Tester Voltage Monitor Meter Plasticf-f
$17.95
Adjustable Boost Buck Voltage Converter 5V to 1.2V-24V Digital Display
$16.95 Save $6.00 RRP: $22.95
Battery Voltmeter DC 8-100V Capacity Indicator Power Meter Lithium LiFePO4 Lead-Acid Cell 12V 24V 48V LCD Screen D
$12.95
1.2V-12V Battery Capacity Meter Discharge Tester Analyzer 18650 Lithium Ion Lithium Lead Acid Battery Capacity Meter
$9.95
DC 8-100V Digital Voltage Power Indicator for Lead-Acid Lithium Battery 12V/24V/36V/48V Two-Wire Anti Reverse Switch B
$10.95 Save $5.00 RRP: $15.95
DC 12V Universal Car Motorcycle Boat LED Digital Voltmeter Panel Volt Meter Monitor Gauge Display C
$12.95
USB Tester Current Voltage Charger Capacity Tester Volt Meter Display USB Current Voltage Test Card
$10.95