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Under $20 General Purpose Battery Testers

Shop the best prices on 5,483 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
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
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
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
Motherboard Power Supply Tester for Pc Power Testing 3Pcs
$19.95 Save $5.00 RRP: $24.95
Universal Battery Tester, Digital Battery Tester, for AA AAA C D 9V 1.5V Keyless Batteries Battery Voltage Tester
$12.95 Save $6.00 RRP: $18.95
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
TEKIVI 6139 Digital Voltmeter Capacity Indicator DC 7-100V Battery Capacity Tester Acid / Li-Ion / Li-Fe Universal
$18.95 Save $10.00 RRP: $28.95
2X Digital Battery Tester LCD Display AA/AAA/C/D/N/9V/1.5V Button Cell Battery Capacity Check Detector
$20.95 Save $12.00 RRP: $32.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument
$15.95 Save $10.00 RRP: $25.95
BT-168 Universal Battery Tester AA AAA C D 9V Button Checker Till
$21.95 Save $5.00 RRP: $26.95
Battery capacity tester, battery measuring instrument, power tester
$16.95 Save $57.05 RRP: $74.00
BT-168 Universal Battery Tester AA AAA C D 9V Button Checker Amyi
$21.95 Save $4.00 RRP: $25.95
Digital Battery Tester Battery Checker Small Voltage Checker for 9V / 1.5V Battery
$20.95
T5 on-Off Data Cable Detection Board Universal IOS Android Type-C Micro-USB Data Cable Abnormal Testing Rapid Detector
$14.95 Save $49.05 RRP: $64.00
Small Hearing Help Battery Checker with Build In Storage Holds Up To 3 Batteries Battery Meter for Accurate Testing Multicolor
$18.95
65W USB DC Electronic Load Resistor Discharge Battery Test Capacity Aging Charger Power Bank Adjustable Current Voltage
$21.95 Save $11.00 RRP: $32.95
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
$21.95
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
$19.95
Digital Battery Tester ABS LCD Screen Button Cell Battery Checker for 1.5V 9V Metering Silver
$11.95 Save $11.00 RRP: $22.95
2PCS Pointer Type Battery Tester Portable Button Cell Level Checker for for AA AAA 1.5V 9V
$18.95 Save $18.00 RRP: $36.95
BSIDE AST01 Portable Professional Automatic Electric Socket Tester Detector (220V EU Plug)
$18.95 Save $19.00 RRP: $37.95
2Pcs Battery Checker Capacity Tester Meter Digital Display Tool for AA AAA 9V 1.5V
$18.95 Save $18.00 RRP: $36.95
Battery Active Equalizer 3S 1.2A Inductive Type Precise Active Equalizer Balancer Battery Energy Transfer Board
$18.95 Save $18.00 RRP: $36.95
Digital Battery Capacity Gauge Tester Universal D C N AAA AA 9V 1.5V Button Cell Analyzer Black
$18.95 Save $18.00 RRP: $36.95
Bt-168 Pro Smart Lcd Digital Battery Tester Electronic V Power
$18.95 Save $19.00 RRP: $37.95