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Under $20 Vehicle Battery Testers

Shop the best prices on 5,626 great value under $20 vehicle battery testers. Shopping for vehicle battery testers is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Ibuyke 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 $5.00 RRP: $19.95
ANENG Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Tester LED Light
$20.95
RS-550 Motor - Suitable for Micro Power Tools with DC Voltage Range of 12-24V and Speed of 21000 Rpm
$20.95 Save $30.00 RRP: $50.95
ANENG Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Tester LED Light
$15.95
Autel PowerScan PS100 Electrical Automotive Circuit Tester Tool 6-24V AVOmeter
$17.95
2025 Automotive Test Light with 5-120V LED Digital Voltage Display, Circuit Tester with Voltmeter & Dual Color Polarity Indicator
$19.95 Save $19.00 RRP: $38.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltage Alarm for Lithium
$15.95
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
Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay Te
$17.95 Save $7.00 RRP: $24.95
Electronic Automotive Relay Tester Kit For Car Auto Battery Checker 12V NEW
$13.95 Save $6.00 RRP: $19.95
DC18V-60V to 12V Converter 20A 240W Golf Cart 24V 36V 48V Step Down to 12V
$18.95 Save $10.00 RRP: $28.95
Car Relay Tester Voltage Tester Universal 12-24V Car Battery Checker Automotive Electronic Relay T
$20.95 Save $6.00 RRP: $26.95
Battery Capacity Display Voltmeter LED Digital Voltage Meter with Touch-ON OFF Switch Car Motorcycle
$8.95 Save $14.00 RRP: $22.95
Car Key ECU Test Coil, Car Induction Signal Detection Card, Automotive Key Lock Chip Antenna Tester, Automatic Ignition Coil Tester for Checking The L
$17.95 Save $11.00 RRP: $28.95
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
$21.95 Save $21.00 RRP: $42.95
USB Doctor Voltage Current Tester LCD Display Portable for Mobile Phone Power Bank Charger
$19.95 Save $6.00 RRP: $25.95
Electric Battery Display LCD Battery Tester for Testing 2Pcs Durable Plastic
$20.95 Save $8.00 RRP: $28.95
LCD Battery Indicator Vehicle Battery Tester for Testing 2Pcs Assorted Color
$20.95 Save $8.00 RRP: $28.95
Battery Voltage Tester Capacity Monitor Waterproof 48V for Safety
$21.95 Save $6.00 RRP: $27.95
The **High Precision Brake Fluid Tester Pen** is a durable and essential diagnostic tool designed for mechanics and vehicle owners to quickly and
$17.95 Save $17.00 RRP: $34.95
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
$17.95 Save $8.00 RRP: $25.95
5PCS 2 In1 1-8S Lipo Battery Voltage Tester, RC Low Voltage Buzzer Alarm, Battery Monitor Checker Te
$16.95 Save $82.05 RRP: $99.00
12V Digital Battery Tester Charging Stytem Analyzer Voltage Alternator Output Test W/LCD Display
$11.95 Save $16.00 RRP: $27.95
BF100 Car Brake Fluid Tester 12V Car Brake Oil Tool
$18.95
Battery Monitor Digital Battery Capacity Tester Voltage Monitor Meter Plasticf-f
$17.95
Car Brake Pad Tester Vehicle Brake Block Thickness Gauge Measuring Tool Automotive Accessory
$20.95 Save $12.00 RRP: $32.95
Battery Rubber Band Straps for Motorbike DurableFixed Holder Stretch Bandage Accessory Belt Stretchable 7inchx1inch Multicolor
$18.95
5918 DC8-100V Digital Circular Voltmeter Waterproof Battery Capacity Monitor Car Voltage Meter Test
$18.95
DC12-36V Digital Engine Hour Meter Timer MA063 for Marine Boat Lawn Truck Tractor
$18.95