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Under $20 General Purpose Battery Testers

Shop the best prices on 2,966 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, Gtsyv and more. Buy general purpose battery testers online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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1 - 32 of 2,966
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltag
$18.95
Battery Tester with Meter Electric Voltage Tester for AA AAA C D N Button Cell Batteries Battery Tes
$22.95 Save $8.00 RRP: $30.95
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$15.95 Save $63.05 RRP: $79.00
BT189 9V Battery Tester AA AAA Universal Household LCD Digital Display Button Cell Battery Tester Power Bank Detector Tool
$19.95 Save $14.00 RRP: $33.95
For M12 Converter Adapter 30A Fuse for Milwaukee 12V Lithium Battery External Power Supply DIY Connector Bracket Holder
$21.95 Save $10.00 RRP: $31.95
4X ZB2L3 18650 Battery Tester External Load Discharge Type 1.2-12V Battery 18650 Equal Capacity Tester Discharge Meter unbrand
$18.95 Save $11.00 RRP: $29.95
Feature: 1. DIFFERENT COLOR DISPLAY: LCD screen with instant readout. The battery's reading value wi
$22.95 Save $6.00 RRP: $28.95
Digital Battery Tester, Universal Battery Tester, Battery Tester, for AA, AAA, C, D, PP3, 9V, 1.5V, Button Batteries - Works without Battery
$15.95 Save $28.00 RRP: $43.95
802 High Precision Test Pencil Electric Voltage Detector Tester Pen 48-1000V/12-1000V (Red)
$19.95 Save $6.00 RRP: $25.95
5PCS 1S 3.7-4.2V Ternary Lithium Battery Capacity Indicator Module Mini LED Light Display Battery Power Tester unbrand
$9.95 Save $8.00 RRP: $17.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument
$18.95 Save $18.00 RRP: $36.95
Digital Battery Tester LCD Display AA/AAA/C/D/N/9V/1.5V Button Cell Battery Capacity Check Detector unbrand
$16.95 Save $12.00 RRP: $28.95
LCD Digital Battery Capacity Controller Checker Tester for C/D/N/AA/AAA/9V 6F22
$3.95 Save $2.00 RRP: $5.95
BT-168PRO LCD Digital Battery Tester 1.2V to 4.8V for Small Button Cell Batteries
$20.95 Save $6.00 RRP: $26.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument unbrand
$19.95 Save $15.00 RRP: $34.95
Dual TYPE-C Cable Testing Module USB-C to USB-C Cable Detection Module with Battery unbrand
$15.95 Save $12.00 RRP: $27.95
FD10 OBD2 Car Scanner Code Reader Clear Error OBD Diagnostic Tool for IOS Android Bluetooth 5.1 Ch
$18.95
BT168 Pro Digital Battery Tester Volt Checker for AA AAA 9V Button Multiple Size Battery Tester Volt
$10.95
KOWSI USB C Tester Power Meter,Digital Multimeter with Large Color Screen,Voltage and Current Tester for Charger and Power Bank
$17.95 Save $10.00 RRP: $27.95
2pcs Dock Test Board USB 5 Pin Battery Power Charging Port Easy Test Repair for Android Type C Phone
$18.95 Save $6.00 RRP: $24.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$19.95 Save $9.00 RRP: $28.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$19.95 Save $9.00 RRP: $28.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$19.95 Save $9.00 RRP: $28.95
Electric Drill Battery Indicator LED Display for Makita 18V /21V Lithium Batteries 18650 Capacity Visual Tool
$6.95 Save $3.00 RRP: $9.95
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$16.95 Save $67.05 RRP: $84.00
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$19.95 Save $12.00 RRP: $31.95
Compact Household Battery Checker, Universal Battery Tester for Quick Testing of AA, AAA, C, D, 9V, 2.5V Button Cell and All Household Batteries
$19.95 Save $12.00 RRP: $31.95
FD10 OBD2 Car Scanner Code Reader Clear Error OBD Diagnostic Tool for IOS Android Bluetooth 5.1 Check Engine Light
$19.95 Save $12.00 RRP: $31.95
DC 8-100V Digital Voltage Power Indicator for Lead-Acid Lithium Battery 12V/24V/36V/48V Two-Wire Anti Reverse Switch C
$12.95 Save $7.00 RRP: $19.95
Eu-/uk Socket Tester Outlet Tester Automatic Electric Circuit Polarity Tester
$14.95 Save $37.00 RRP: $51.95
Universal Battery Tester for C,AA,AAA,D,N,9V 6F22 Batteries
$13.95 Save $2.00 RRP: $15.95
LED Battery Level Indicator Digital Voltmeter 12V/24V/36V/48V Voltage Charge Tester Lithium Battery Capacity Board Blue
$10.95 Save $5.00 RRP: $15.95