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Under $20 General Purpose Battery Testers

Shop the best prices on 6,048 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 Elsavct, Till, Amyi 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
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$10.95 Save $48.05 RRP: $59.00
Universal Battery Checker for AA, AAA, C, D, N, and Button Cell Types
$21.95 Save $19.00 RRP: $40.95
Digital Battery Tester, Universal LCD Battery Tester for AAA/AA/C/D Button Cell 1.5V-9V Mini Batteries
$20.95
LCD Display Button Cell Battery Checker Battery Monitors Tester Battery Tester Checker Small Volts Checker Multicolor
$19.95
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
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
KOWSI USB Ammeter Multi-Function Digital Display DC Voltage Ammeter Power Meter Cell Phone Charging Tester
$14.95 Save $14.00 RRP: $28.95
MECHANIC F018 Battery Active Panel Fast Charge Detection Board for Android Phone Battery Activation
$12.95 Save $13.00 RRP: $25.95
ANENG Battery Tester with LCD Power Index Display for C D N AA AAA 9V 1.5V Button Battery Checker
$8.95 Save $8.00 RRP: $16.95
BT-168 Universal Battery Tester AA AAA C D 9V Button Checker Till
$20.95 Save $5.00 RRP: $25.95
BT-168 Universal Battery Tester AA AAA C D 9V Button Checker Amyi
$20.95 Save $4.00 RRP: $24.95
12V 24V 36V 48V 18650 Battery Capacity Testing Board Battery Level Indicator Digital Voltmeter Voltage Tester White
$20.95
LCD Battery Tester Battery Checker for AA AAA C D 1.5V 9V Small Batteries
$18.95 Save $9.00 RRP: $27.95
Ribbon Cable Expansion Board For Battery Pack Test Adapter 25 Pin 2.0 To 2.54mm Supporting 1 To 24 Series Multicolor
$22.95
2X PC 20 24 Pin Power Supply Tester Checker LED for PSU ATX SATA HDD Meter Measuring 12V 5V 3.3V
$15.95
3X USB Resistor Dc Electronic Load with Switch Adjustable 5V1A/2A/3A Battery Voltage Discharge Resistance Tester
$12.95
2X BT168 Pro Digital Battery Tester Volt Checker for AA AAA 9V Button Multiple Size Battery Tester Voltage Meter Tools
$12.95
3X Mini LED Digital Voltmeter Monitor Panel Meter Volt Voltage Tester Reverse Connection Protection 12V-80V Blue
$15.95
2X 18650 Li-Ion Lipo Lithium Test 7-55V Acid Battery Level Indicator Tester LEDDisplay Meter Module,D
$12.95
4X ZB2L3 18650 Battery Tester External Load Discharge Type 1.2-12V Battery 18650 Equal Capacity Tester Discharge Meter
$15.95
USB Electronic Load Tester Multifunctional Digital Voltage Current Meter Battery Tester with Fan LD35
$20.95
Digital Battery Tester Battery Checker Small Voltage Checker for 9V / 1.5V Battery
$20.95
Small Hearing Help Battery Checker with Build In Storage Holds Up To 3 Batteries Battery Meter for Accurate Testing Multicolor
$17.95
18650 26650 21700 Battery Internal Resistance Tester Fixture Four-Wire System
$20.95 Save $17.00 RRP: $37.95
H5 12V-48V Lead-acid Battery Voltage Tester Percentage Voltmeter Gauge Lithium Battery Status Monitor
$20.95
Watch Tester 1.5V 3V Maintenance Watch Repairing Tool for Hobby Watch Worker
$18.95 Save $5.00 RRP: $23.95
Temperature Buzzer Kit PCB Board Thermistor Temp Alarm Module DIY Practical Training Parts
$17.95 Save $5.00 RRP: $22.95
Multipurpose Battery Checker Versatile Battery Tester Battery Voltages Meter for Technicians & Electronics Enthusiasts Orange
$18.95
Digital Battery Tester ABS LCD Screen Button Cell Battery Checker for 1.5V 9V Metering Silver
$10.95 Save $11.00 RRP: $21.95
2PCS Pointer Type Battery Tester Portable Button Cell Level Checker for for AA AAA 1.5V 9V
$17.95 Save $18.00 RRP: $35.95
BSIDE AST01 Portable Professional Automatic Electric Socket Tester Detector (220V EU Plug)
$18.95 Save $19.00 RRP: $37.95