Filters

Under $20 General Purpose Battery Testers

Shop the best prices on 5,402 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.

Filters
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
Digital Battery Tester, Universal Battery Tester, Battery Tester, for AA, AAA, C, D, PP3, 9V, 1.5V, Button Cell Batteries - Works Without Battery RUIO
$14.95 Save $30.00 RRP: $44.95
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
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
YB27VE Electric Car Digital LED Voltage and Electricity Dual Meters Tester Battery Power Display Voltage MeterLithium Battery 12V
$21.95 Save $19.00 RRP: $40.95
1Pcs DC Voltage Meter Panel, 0.56″ Digital LED Display Waterproof High Precision Voltmeter Voltage Current Display(DC5-130V-Green) 7V4MM
$18.95 Save $18.00 RRP: $36.95
AC Pointer Voltmeter 0-500V Scale Range Voltage Test Meter Detector Panel Meters
$21.95 Save $15.00 RRP: $36.95
Digital Display Voltmeter Display, 3 Wire DC 0.56 Inch LED Digital External Display Module Volt Voltage Meter DC 0‑99.9V(Blue) I99SY
$19.95 Save $18.00 RRP: $37.95
1Pcs DC Voltage Meter Panel, 0.56″ Digital LED Display Waterproof High Precision Voltmeter Voltage Current Display(DC5-130V-Red) K0FW0
$18.95 Save $18.00 RRP: $36.95
2Pcs Digital Voltmeter Voltage Meter 3 Wire 0.36in Green LED Display DC0.00V‑30.0V
$20.95 Save $18.00 RRP: $38.95
Digital Display Voltmeter Display, 3 Wire DC 0.56 Inch LED Digital External Display Module Volt Voltage Meter DC 0‑99.9V(Red and Blue) TN4OA
$19.95 Save $18.00 RRP: $37.95
Digital Display Voltmeter Display, 3 Wire DC 0.56 Inch LED Digital External Display Module Volt Voltage Meter DC 0‑99.9V(Red and Blue) 018OB
$19.95 Save $18.00 RRP: $37.95
Digital Battery Tester Lcd Display Button Cell Battery Capacity Check Detector Capacitance Diagnostic Tool (1pc)
$15.95
Battery Tester Universal Household Capacity Checker for D C AA AAA N 9V Button Cell
$19.95 Save $23.00 RRP: $42.95
Battery Voltmeter DC 8-100V Capacity Indicator Power Meter Lithium LiFePO4 Lead-Acid Cell 12V 24V 48V LCD Screen B unbrand
$11.95
USB Electronic Load Tester Multifunctional Digital Voltage Current Meter Battery Tester with Fan LD35 unbrand
$19.95
DC7-100V Battery Indicator Battery Voltage Capacity Tester Battery Monitor Coulometer for Ternary Lithium/Lead-Acid
$19.95 Save $8.00 RRP: $27.95
Data Cable Detection Board, Double Headed Type C, USB Cable Tester Board, Compatible IOS, Android Phone, Support USB 3.1
$17.95 Save $8.00 RRP: $25.95
IPS HD Screen USB Tester Voltmeter Ammeter TYPE-C PD/QC2.0/QC3.0 Fast Charge Detection Voltage Current Capacity Tester A
$13.95 Save $6.00 RRP: $19.95
Universal 1.5V 9V Battery Tester Digital Display Battery Checker for AA AAA C D Batteries (Black Red)
$15.95 Save $63.05 RRP: $79.00
USB PD Fast Charge Tester TypeC QC Trigger Module with Adjustable Voltage Control Test Board
$21.95 Save $10.00 RRP: $31.95
Battery Tester Digital LCD Capacity Checker for AA AAA C D 1.5V Cells Wide Compatibility Black
$21.95 Save $10.00 RRP: $31.95
Loud hailer Lipo battery voltage alarm display Checker 2-3S LED display for RC Helicopter Quadcopter car battery
$6.95 Save $2.00 RRP: $8.95
Battery Capacity Indicator for 3S LiPo, 12.6V Voltage Display and Quick Charge Level Tester
$21.95 Save $10.00 RRP: $31.95
Battery Capacity Tester with LCD Display for 18 Cell LiPo RC Batteries and Low Voltage Alert
$21.95 Save $10.00 RRP: $31.95
Digital Battery Tester ABS LCD Screen Button Cell Battery Checker for 1.5V 9V Metering Black
$15.95 Save $16.00 RRP: $31.95
2025 Lipo Battery Checker Lipo Battery Tester Lipo Battery Voltage Tester Lipo Voltage Checker
$12.95 Save $12.00 RRP: $24.95
2025 ANENG BT189 Button Cell Battery Tester Universal Household LCD Display 9V N D C AA AAA Battery Tester Power Bank Detectors Tools
$13.95 Save $14.00 RRP: $27.95