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Under $20 General Purpose Battery Testers

Shop the best prices on 4,575 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 Tcgg, Jtgg, SZ-FR1U-I750215006 and more. Buy general purpose battery testers online safely with Fruugo, with secure payment and fast shipping to Australia.

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1 - 32 of 3,200
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltag
$14.95
Battery Tester with Meter Electric Voltage Tester for AA AAA C D N Button Cell Batteries Battery Tes
$17.95 Save $7.00 RRP: $24.95
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$12.95 Save $51.05 RRP: $64.00
BT189 9V Battery Tester AA AAA Universal Household LCD Digital Display Button Cell Battery Tester Power Bank Detector Tool
$15.95 Save $10.00 RRP: $25.95
BT-168 AA/AAA/C/D/9V/1.5V batteries Universal Button Cell Battery Colour Coded Meter Indicate Volt Tester Checker BT168 Power
$11.95
4X ZB2L3 18650 Battery Tester External Load Discharge Type 1.2-12V Battery 18650 Equal Capacity Tester Discharge Meter unbrand
$14.95 Save $8.00 RRP: $22.95
For M12 Converter Adapter 30A Fuse for Milwaukee 12V Lithium Battery External Power Supply DIY Connector Bracket Holder
$16.95 Save $8.00 RRP: $24.95
Feature: 1. [Custom Display] Universal version of the battery power display indicator, 4 display sta
$19.95 Save $6.00 RRP: $25.95
Feature: 1. DIFFERENT COLOR DISPLAY: LCD screen with instant readout. The battery's reading value wi
$17.95 Save $6.00 RRP: $23.95
3.7-4.2V Metering Module 1 String Ternary Battery Capacity Board Power Display Module Mini LED Indicator Board Replacement Multicolor
$19.95
802 High Precision Test Pencil Electric Voltage Detector Tester Pen 48-1000V/12-1000V (Red)
$16.95 Save $5.00 RRP: $21.95
HDC-085C DC 4.5-50V 0-12A PD3.1 Multi-Function Digital Display Voltage Ammeter Meter Type-C Cell Phone Charging Tester
$21.95 Save $21.00 RRP: $42.95
Electronic Load Resistor Usb Interface Discharge Battery Test Led Display Fan Adjustable Current Voltage 25W/35W(Ld35)
$20.95 Save $21.00 RRP: $41.95
5PCS 1S 3.7-4.2V Ternary Lithium Battery Capacity Indicator Module Mini LED Light Display Battery Power Tester unbrand
$8.95 Save $6.00 RRP: $14.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument
$14.95 Save $16.00 RRP: $30.95
Digital Battery Tester LCD Display AA/AAA/C/D/N/9V/1.5V Button Cell Battery Capacity Check Detector unbrand
$13.95 Save $9.00 RRP: $22.95
LCD Digital Battery Capacity Controller Checker Tester for C/D/N/AA/AAA/9V 6F22
$3.95 Save $1.00 RRP: $4.95
BT-168PRO LCD Digital Battery Tester 1.2V to 4.8V for Small Button Cell Batteries
$16.95 Save $5.00 RRP: $21.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument unbrand
$16.95 Save $12.00 RRP: $28.95
Dual TYPE-C Cable Testing Module USB-C to USB-C Cable Detection Module with Battery unbrand
$12.95 Save $10.00 RRP: $22.95
Battery Charge Level Indicator Lithium Battery Capacity Meter Test Display LED Tester Voltmeter, Dual USB DC 8-30V
$19.95
FD10 OBD2 Car Scanner Code Reader Clear Error OBD Diagnostic Tool for IOS Android Bluetooth 5.1 Ch
$15.95
Universal Battery Checker Battery Tester Capacity Check Tool for AA AAA 9V 1.5V Button Cell Batteries Quickly Determine
$20.95
BT168 Pro Digital Battery Tester Volt Checker for AA AAA 9V Button Multiple Size Battery Tester Volt
$8.95
KOWSI USB C Tester Power Meter,Digital Multimeter with Large Color Screen,Voltage and Current Tester for Charger and Power Bank
$14.95 Save $8.00 RRP: $22.95
Black Computer PC Power Supply Tester 24Pin Compatible PSU/ATX/SATA/HDD With Indicator Light
$21.95 Save $7.00 RRP: $28.95
2pcs Dock Test Board USB 5 Pin Battery Power Charging Port Easy Test Repair for Android Type C Phone
$14.95 Save $5.00 RRP: $19.95
Digital Wattmeter Watt Meter Power Meter DC 60V 100A Balance Voltage Battery Checker
$18.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$17.95 Save $8.00 RRP: $25.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$17.95 Save $8.00 RRP: $25.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$16.95 Save $7.00 RRP: $23.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$16.95 Save $7.00 RRP: $23.95