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Under $20 General Purpose Battery Testers

Shop the best prices on 5,489 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
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
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
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
BBX1-8S Lipo Battery Voltage Tester with Alarm & Case for 1-8S Batteries
$14.95 Save $21.00 RRP: $35.95
USB Multi-Function Digital Display DC Voltage Ammeter Power Meter DC 3.2-30V 0-5A Voltmeter Charger Capacity Tester
$19.95
Xh-m239 18650 Lithium Battery Capacity Tester Module With Lcd Display Mah/ Measurement High Precisi
$17.95
ZB2L3 Battery Tester LED Digital Display 18650 Lithium Battery Power Supply Test Resistance Lead-acid Capacity
$5.95
BT-168D Battery Tester Digital Battery Tester Battery Capacity Tester BT168D Tester for AA/AAA/C/D/9
$17.95 Save $29.00 RRP: $46.95
Universal Digital Lcd Battery Tester Checker C D N Aa Ce 9v 1.5v Aaa Button
$10.95 Save $5.00 RRP: $15.95
ANENG Portable Magnetic Battery Voltage Capacity Tester
$21.95
UltraSmall Battery Tester With LCD Display 9V AA AAA Button Cell Batteries Power Bank Detection Orange Black Gray
$21.95 Save $10.00 RRP: $31.95
Small Handheld Tester Device for Measuring USB Power Battery Capacity Electric Current Including Overload Protect Multicolor
$21.95
802 High Precision Test Pencil Electric Voltage Detector Tester Pen 48-1000V/12-1000V (Red)
$14.95 Save $4.00 RRP: $18.95
Digital Battery Tester BT189 Battery Tester LCD Display Universal Battery Checker For AA AAA 9V 1.5V/3V Button Cell Batteries
$9.95 Save $5.00 RRP: $14.95
ISOFT IS-001 Lightning 8Pin DFU Easy Restoration Cable for iPhone iPad iPod
$21.95 Save $21.00 RRP: $42.95
KOWSI Power Meter Type-c Tester Power Meter Detector-2025
$17.95 Save $12.00 RRP: $29.95
Universal Battery Checker Battery Tester Capacity Check Tool for AA AAA 9V 1.5V Button Cell Batteries Quickly Determine
$18.95
For M12 Converter Adapter 30A Fuse for 12V Lithium Battery
$16.95
Professional USB Power Capacity AnalyzerS Featuring Real Time Data Accuracy For Mobile Accessories Multicolor
$20.95
Universal Digital Lcd Battery Tester Checker C D N Aa Ce 9v 1.5v Aaa Button z
$9.95 Save $6.00 RRP: $15.95
Battery Tester Universal Reliable Battery Capacity and Voltage Measurement Tool Model BT860 Battery Tester with Display Multicolor
$20.95
YB27VE Electric Car Digital LED Voltage and Electricity Dual Meters Tester Battery Power Display Voltage MeterLithium Battery 60V
$21.95 Save $19.00 RRP: $40.95
Usb Detector Digital Multimeter Meter Power Tester Current Voltage Battery Monitor With Led Display
$7.95 Save $2.00 RRP: $9.95
Eu-/uk Socket Tester Outlet Tester Automatic Electric Circuit Polarity Tester
$10.95 Save $27.00 RRP: $37.95
Hearing Aids Battery Tester Portable Battery Checker LCD Display Batteries Measuring Devices Woosien
$6.95
Universal Battery Tester for C,AA,AAA,D,N,9V 6F22 Batteries
$9.95 Save $2.00 RRP: $11.95
12V 24V 48V 60V 84V Waterproof IP67 Battery Capacity Voltage Meter with Backlight LCD and Low-Voltag
$8.95 Save $21.00 RRP: $29.95
AC Voltage Detector NCV 12?1000V Pen Type Volt Tester Circuit Line Test Pen for Repair
$19.95 Save $20.00 RRP: $39.95