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Under $20 General Purpose Battery Testers

Shop the best prices on 5,461 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
LCD Display Button Cell Battery Checker Battery Monitors Tester Battery Tester Checker Small Volts Checker Multicolor
$19.95
Battery Tester, Universal Battery Checkered Small Battery Testers for AAA AA C-D 9V 1.5V Button Cell Household Batteries Black
$0.95
Universal Battery Checker for AA, AAA, C, D, N, and Button Cell Types
$22.95 Save $18.00 RRP: $40.95
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 LCD Battery Tester for AAA/AA/C/D Button Cell 1.5V-9V Mini Batteries
$20.95
2pcs Battery Checker Tester Battery Capacity Tester Battery Checker Battery Tester Checker
$10.95 Save $48.05 RRP: $59.00
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
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
Feature: 1. [Custom Display] Universal version of the battery power display indicator, 4 display sta
$17.95 Save $5.00 RRP: $22.95
Feature: 1. DIFFERENT COLOR DISPLAY: LCD screen with instant readout. The battery's reading value wi
$15.95 Save $5.00 RRP: $20.95
2pcs Dock Test Board USB 5 Pin Battery Power Charging Port Easy Test Repair for Android Type C Phone
$15.95 Save $4.00 RRP: $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
$16.95 Save $29.00 RRP: $45.95
3.7-4.2V Metering Module 1 String Ternary Battery Capacity Board Power Display Module Mini LED Indicator Board Replacement Multicolor
$16.95
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
802 High Precision Test Pencil Electric Voltage Detector Tester Pen 48-1000V/12-1000V (Red)
$14.95 Save $4.00 RRP: $18.95
HDC-085C DC 4.5-50V 0-12A PD3.1 Multi-Function Digital Display Voltage Ammeter Meter Type-C Cell Phone Charging Tester
$18.95 Save $19.00 RRP: $37.95
Universal Battery Tester for C,AA,AAA,D,N,9V 6F22 Batteries
$9.95 Save $8.00 RRP: $17.95
Electronic Load Resistor Usb Interface Discharge Battery Test Led Display Fan Adjustable Current Voltage 25W/35W(Ld35)
$18.95 Save $18.00 RRP: $36.95
OSS TEAM 2Pcs Micro-USB PCB Test Board Charging Dock Flex Tester for Andorid Mini Type-C USB3.1 Smartphone Repair Connector
$7.95 Save $9.00 RRP: $16.95
Electric Drill Battery Indicator LED Display for Makita 18V /21V Lithium Batteries 18650 Capacity Visual Tool
$5.95 Save $7.00 RRP: $12.95
5PCS 1S 3.7-4.2V Ternary Lithium Battery Capacity Indicator Module Mini LED Light Display Battery Power Tester unbrand
$7.95 Save $5.00 RRP: $12.95
Red Led Digital Display Voltmeter Mini Voltage Meter Volt Tester Panel for Dc 12V Cars Motorcycles Vehicles Usb 5V2a Output 12.6V Battery
$16.95
Battery Balancer Capacity Controller Tester CellMeter-7 LiPo LiFe Li-Fe Li-Ion NiMH Nicd Digital Checker
$10.95 Save $11.00 RRP: $21.95
150A High Precision Watt Meter Power Analyzer Backlight LCD Wattmeter 150A Power Meter Analysis Instrument
$13.95 Save $13.00 RRP: $26.95
200A High Precision Power Analyzer Watt Meter Battery Consumption Performance Monitor with LCD Backlight for RC
$13.95 Save $13.00 RRP: $26.95
Digital Battery Tester LCD Display AA/AAA/C/D/N/9V/1.5V Button Cell Battery Capacity Check Detector
$10.95 Save $12.00 RRP: $22.95
TS457 Voltage Internal Resistance Tester AC 4-Wire Method Voltage Meter Internal Resistance Test Device 18650 A
$19.95 Save $20.00 RRP: $39.95