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Under $20 General Purpose Battery Testers

Shop the best prices on 5,479 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
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
Precision Pocket Scale 200 Grams X 0.01 Grams, Maxus Elite Digital Gram Scales Small Herbal Scale Mini Food Scale / Grain Scale Easy To Carry Travel L
$16.95 Save $32.00 RRP: $48.95
Universal Battery Tester Digital ,for AA AAA CD 9V 1.5V Keyless Battery Voltage Checker
$19.95
BT-168PRO LCD Digital Battery Tester 1.2V to 4.8V for Small Button Cell Batteries
$14.95 Save $5.00 RRP: $19.95
Digital Battery Tester, Universal Battery Tester, Battery Tester, for AA, AAA, C, D, PP3, 9V, 1.5V, Button Batteries - Works without Battery TLI
$21.95 Save $62.05 RRP: $84.00
12V-84V Lead-acid Battery Capacity Indicator Voltage Meter Voltmeter LCD Monitor
$18.95
Universal AA AAA C D Battery Eliminator USB C 5V to 3V Step-down Clip Cable
$16.95
TDS Meter Digital Water Quality Tester
$13.95 Save $5.00 RRP: $18.95
Household Battery Tester Hand Battery Checker Button Cell Battery Tester Accurate Result for Extended battery Orange
$18.95
BT-886 Battery Tester Dry Battery No.5 Display Voltage Tester Black
$17.95 Save $26.00 RRP: $43.95
LCD Digital Battery Capacity Controller Checker Tester for C/D/N/AA/AAA/9V 6F22
$2.95 Save $2.00 RRP: $4.95
Mini USB Current Volt Tester USB Ammeter Charging Tester Monitor Digital
$20.95 Save $5.00 RRP: $25.95
Compact Digital Battery Tester for AAA AA C D 1.2-4.8V Household Battery Checker Tester for Small Batteries Button Cell
$18.95
for Smart Electrical Tester Pen for Smart Chip Made Dual Colors LED Live/Null Wire Tester Convient Clip Design Voltage 2
$19.95
4S 12V Battery Active Equalizers BMS Balancer Liion BMS LiFePO4 Lithiums Battery Balance Actives Energies Transfer White
$20.95
Digital Battery Tester Battery Capacity Detector Checker Measuring Tool 90 x 60mm
$15.95
Digital Wattmeter Watt Meter Power Meter DC 60V 100A Balance Voltage Battery Checker
$20.95 Save $4.00 RRP: $24.95
5PCS 1S 3.7-4.2V Ternary Lithium Battery Capacity Indicator Module Mini LED Light Display Battery Power Tester
$7.95 Save $5.00 RRP: $12.95
Milwaukee 18V Battery Adapter Converter Designed for DIY Power Tool Use
$19.95 Save $22.00 RRP: $41.95
200A High Precision Power Analyzer Watt Meter Battery Monitor LCD Backlight
$12.95 Save $17.00 RRP: $29.95
1.5V-3V 18000 RPM Mini DC Motor for DIY Toys Hobbies BRICOLAJE Crafts
$10.95 Save $5.00 RRP: $15.95
BT-168D Universal Digital LCD 9V 1.5V AA AAA Cell Button Battery Tester Checker (Black)
$13.95 Save $33.00 RRP: $46.95
Car Battery Tester Small Batteries Tester Battery Tester AAA C D 9-volt Battery Checker 9v Battery Tester
$13.95 Save $33.00 RRP: $46.95
Digital Battery Tester Battery Capacity Detector Card Type Battery Checker for 9V 1.5V Button Cell Batteries
$14.95 Save $24.00 RRP: $38.95
Trailer Socket Tester 7 Pin Electrical Tow Bar Wiring Circuit Light Test Tool for Truck RV Blue Label
$13.95 Save $14.00 RRP: $27.95
Digital Battery Tester, Universal Battery Tester, Battery Tester, for AA, AAA, C, D, PP3, 9V, 1.5V, Button Batteries - Works without Battery
$20.95