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Under $20 General Purpose Battery Testers

Shop the best prices on 5,647 great value under $20 general purpose battery testers. Shopping for general purpose battery testers is easy with Fruugo, with SALE discounts, offers and savings on Till, Amyi, Elsavct and more. Buy general purpose battery testers online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 3,200
BT189 9V Battery Tester AA AAA Universal Household LCD Digital Display Button Cell Battery Tester Power Bank Detector Tool
$14.95 Save $10.00 RRP: $24.95
4X ZB2L3 18650 Battery Tester External Load Discharge Type 1.2-12V Battery 18650 Equal Capacity Tester Discharge Meter unbrand
$13.95 Save $8.00 RRP: $21.95
For M12 Converter Adapter 30A Fuse for Milwaukee 12V Lithium Battery External Power Supply DIY Connector Bracket Holder
$15.95 Save $7.00 RRP: $22.95
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$11.95 Save $47.05 RRP: $59.00
Digital Battery Tester, Universal LCD Battery Tester for AAA/AA/C/D Button Cell 1.5V-9V Mini Batteries
$20.95
Universal Battery Checker for AA, AAA, C, D, N, and Button Cell Types
$22.95 Save $18.00 RRP: $40.95
LCD Display Button Cell Battery Checker Battery Monitors Tester Battery Tester Checker Small Volts Checker Multicolor
$20.95
Battery Tester, Universal Battery Checkered Small Battery Testers for AAA AA C-D 9V 1.5V Button Cell Household Batteries Black
$0.95
Car Ignition Tester Spark Detection Pen High Voltage Cable Tester Tool
$19.95 Save $17.00 RRP: $36.95
Dry Battery Tester LCD Digital Display Battery Voltage Detector for AA AAA C D 9V Battery 1.2V-5.0V
$21.95 Save $7.00 RRP: $28.95
Portable Hearing Help Battery Meter Lightweight Battery Tester Hearing Help Battery Level Checker for Spare Batteries
$17.95
60V-600V AC Three Phase Rotation Indicator Meter Phase Sequence Tester LED Buzzer with Portable Pouch
$13.95 Save $21.00 RRP: $34.95
ZB2L3 Battery Tester LED Digital Display 18650 Lithium Battery Supply Test Resistance Lead-Acid Cap
$6.95 Save $4.00 RRP: $10.95
Digital Battery Tester ABS LCD Screen Button Cell Battery Checker for 1.5V 9V Metering Black
$11.95 Save $4.00 RRP: $15.95
Digital Battery Tester ABS LCD Screen Button Cell Battery Checker for 1.5V 9V Metering Black
$12.95 Save $7.00 RRP: $19.95
Battery Measuring Device Pocket Hearing Aid Battery Power Monitoring Tester Checker Tool Light Gray
$8.95 Save $5.00 RRP: $13.95
Digital Battery Tester, ABS LCD Display, Button Cell Battery Checker for 1.5V to 9V Measurement, Silver
$15.95 Save $5.00 RRP: $20.95
POWER-Z CT001 Dual Type-C Fast Charging Cable Inspection Board for Smartphone Cable Testing and Line Sequence Testing A
$19.95 Save $10.00 RRP: $29.95
AA AAA C D N Button Cell Battery Tester with Voltage Meter - Check Battery Power Level
$15.95 Save $21.00 RRP: $36.95
LED Battery Level Indicator Digital Voltmeter 12V/24V/36V/48V Voltage Charge Tester Lithium Battery Capacity Board Green
$8.95 Save $4.00 RRP: $12.95
LED Battery Level Indicator Digital Voltmeter with Screw Hole Voltage Charge Tester Lithium Battery Capacity Board White
$8.95 Save $4.00 RRP: $12.95
Universal 1.5V 9V Battery Tester Digital Display Battery Checker for AA AAA C D Batteries (Black Red)
$4.95 Save $44.00 RRP: $48.95
BT-168D Universal Digital LCD 9V 1.5V AA AAA Cell Button Battery Tester Checker (Black)
$15.95 Save $63.05 RRP: $79.00
5X 12V ACID Lead Battery Capacity Indicator Charge Level LED Tester Blue Voltmeter
$15.95 Save $11.00 RRP: $26.95
10Pcs Carbon Brushes Engine Coal Brushes for GA4534
$9.95 Save $7.00 RRP: $16.95
2X Insulated Alligator Clip Connector Clamp Testing Probe Red+Black
$11.95 Save $8.00 RRP: $19.95
Ultra-small Battery Tester 9V AA AAA Button Cell Universal Household LCD Digital Display Battery Tester Power Bank Detector Tool
$9.95 Save $20.00 RRP: $29.95
ANENG BT189 Button Cell Battery Tester Universal Household LCD Display 9V N D C AA AAA Battery Tester Power Bank Detectors Tools
$9.95 Save $5.00 RRP: $14.95
Digital Battery Tester BT189 Battery Tester LCD Display Universal Battery Checker For AA AAA 9V 1.5V/3V Button Cell Batteries
$9.95 Save $20.00 RRP: $29.95
Voltage Current Meter with Display for Testing Made of Plastic Assorted Color 1A 10A 50A 100A DC
$15.95 Save $12.00 RRP: $27.95
2Pcs DIY for DC 3.7V 50000RPM 716 Hollow Cup Motor Coreless Motor for RC Model T Silver
$14.95
Universal Battery Checker Battery Tester Capacity Check Tool for AA AAA 9V 1.5V Button Cell Batteries Quickly Determine
$18.95