Electron Battery Load Testers of 2025
Best Choice1
TOPDON18% OffCar Battery Tester 24V 12V Load Tester, TOPDON BT200 100-2000CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht
9.7 Simple to use9.7 clearly written9.5 PrecisionWhy we love it
Accurate battery health assessment.
Works with multiple vehicle types.
Easy-to-read color display.
9.8Exceptional
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Value for Money2
OTC31% OffOTC 3181 130 Amp Heavy-Duty Battery Load Tester Black
9.5 clearly written9.3 Simple to use9.1 PrecisionWhy we love it
Ergonomic design
Accurate reliable
Quick results
9.7Exceptional
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3
Schumacher Electric17% OffSchumacher Electric Battery Load Tester and Voltmeter, BT-100, 100 Amps, 6 Volt, 12 Volt, for Testing Batteries Up to 1000 Cranking Amps
9.7 clearly written9.5 Simple to use9.3 PrecisionWhy we love it
Easy operation with visible meter readings.
Comprehensive battery health diagnostics.
Durable with heavy-duty clamps.
9.5Excellent
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4
MakerHawkMakerHawk Electronic Load Tester - USB Load Tester 150W 200V 20A Resistor Adjustable Constant Current Battery Capacity Tester Module Intelligent Dischar
Main highlights- Voltage measurement range: 0.00V ~ 200V, Current measurement range: 0.00A ~ 20A.
- Two power supply methods: 1. DC6-12V DC5.0 power supply; 2. DC6-12V Micro USB power supply.The body discharge power cannot exceed 150W, otherwise there is a risk of burnout.
- Prevent burning warning: when the input voltage battery and large power test, access must be beforeusing two current adjustment knob counterclockwise to the minimum to zero, then the access, accordingto the priority according to current power to slowly adjust current knob, must not instantly transferred infull, so there are excessive instantaneous power load discharge tube burnt huge risk! Please use thespecial attention to this point, thank you!
- How to operate: Set the capacity, power, time using the Keystrokes method Reset:1. Reset button Long all data (mAh, Klitschko, 00: 00: 00); 2. Fast button twice capacity reset (mAh); 3. Fast button three power reset (ㅁ);4. Fast button Four time reset (00:00:00); 5. Fast button five settings auto standby, Discharge count down regularly; 6. No load output No load, fast seven key, And current zero zero current, Environmental temperature Accurate calibration.
- 150W power refers to: In accordance with the power calculation formula P = UI (power = voltage x current); 10V input Approximately 18A discharge current 20V input Approximately 9A discharge current 30V input Approximately 6A discharge current.
9.2Excellent
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5
MakerHawk14% OffMakerHawk Battery Load Tester - 180W 200V 20A USB Load Tester 4-Wire System Adjustable Constant Current Voltage Discharge Lithium Battery Capacity Tester Electronic Load Tester
Main highlights- Powerful Performance & Intelligent Cooling: This lithium battery tester has a high voltage of 200V, a high current of 20A, and a high power of 180W. Equipped with an intelligent temperature-controlled colored light fan, strong airflow and low noise, it can extend the service life and support continuous operation of long-term discharge or aging tests.
- Multi-Device Compatibility & Safety Features: This battery capacity tester supports discharge aging tests for a wide range of devices, including chargers, cables, power banks, batteries, and power adapters. It has intelligent safety protection such as overload, overcurrent and high temperature protection, real-time monitoring of status makes it safe and reliable.
- High Precision & Upgraded Four-Wire System: Utilizing a four-wire connection, this voltage tester ensures accurate voltage measurements unaffected by wire resistance and its measurement accuracy is comparable to that of large professional instruments. It is also compatible with two-wire connection.
- Four Discharge Modes & App Compatibility: The USB load tester supports constant current, constant power, constant resistance, and constant voltage modes. It is compatible with Android and iOS apps, as well as PC BT and wired connections, providing versatile testing options.
- 2.4" Large Screen Battery Load Tester: Featuring a high-definition color screen, this electronic load tester provides clear and precise readings. It offers comprehensive parameter, settings and operations, including voltage, current, power, capacity, electricity, temperature, discharge resistance, time-limited discharge and stop voltage, etc., to ensure accurate and reliable results.
8.9Very Good
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6
TOPDON11% OffTOPDON BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht
9.9 clearly written9.7 Simple to use9.5 PrecisionWhy we love it
Easy to use with clear LED indicators.
Compatible with various vehicle types.
Provides accurate and reliable results.
8.7Very Good
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7
ANCEL30% OffANCEL BA101 Car Battery Tester, 12V Digital Automotive Alternator Meter Diagnostic Tool,100-2000 CCA Load Capacity, Charging & Cranking Analyzer for Truck, Boat, RV, Marine Vehicle, and More
9.3 Simple to use9.3 clearly written8.9 PrecisionWhy we love it
Accurate and reliable readings.
Compatible with multiple battery types.
Easy to use with a clear display.
8.6Very Good
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8
Eyes.sysEyes.sys Electronic Load Tester, USB Load Tester, 180W 200V 20A Battery Capacity Tester Constant Current & Constant Voltage, 4 Modes, Intelligent Discharge Resistance Power Tester
Main highlights- Flexible input wiring interface design to support more DIY connections and extend the functions
- External wired NTC thermometer to realize dual temperature measurement inside and outside
- Can test the charging speed and quality of a variety of charging cable and data cables
- 4 operating modes - constant current / constant voltage / constant power / constant resistance, plus auto generation of data report & 2.4” HD color large screen
- 3 intelligent safety protections to monitor the discharge status in real time
8.4Good
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9
VDIAGTOOLCar Battery Tester 6V 12V 24V VDIAGTOOL BT500, 5-3000 CCA Battery Load Tester, Starter Alternator Tester Automotive Charging Cranking System Analyzer for Car Truck Motorcycle SUV ATV Boat
Main highlights- 【WIDE COMPATIBILITY】 BT500 battery load tester works on all 6V 12V 24V batteries with ratings 5-3000 CCA, including regular flooded, AGM flat plate, AGM spiral, GEL, EFB battery for car, light duty truck, SUV, van, motorcycle, RV, ATV, trailer, boat, yacht, mower and even golf cart. Supporting most car battery standards, such as CCA, BCI, CA, MCA, JIS, DIN, SAE. NOTE: Does NOT work on lithium batteries.
- 【STARTER & ALTERMATOR TESTER】 BT500 alternator tester can perform cranking test of the vehicle starter motor and check whether it is cranking properly or not, charging test of the alternator to prevent overcharge or incomplete charge. Note: Please turn off all electrical devices (such as air conditioner, headlights, stereo or other electrical equipment）during the charging test.
- 【RELIABLE BATTERY ANALYZER】 BT500 battery tester 12v automotive can quickly and accurately display details of the battery parameters such as voltage, internal resistance, cold cranking amp and battery health(SOH) and charge status(SOC). This battery testers will also provide you with professional advice on whether to replace or recharge the battery, helping you know the battery status in advance to prevent possible battery failures.
- 【6V 12V 24V BATTERY TESTER】 BT500 is a fast & accurate car battery tester which provide overall analysis of the battery's health and charging & cranking test to help you know everything about the health of batteries, the starter motor's cranking status, and vehicle electronic system's charging condition. It’s must-have battery testing tool for DIYers and pros.
- 【 99.99% ACCURACY & SAFE DESIGN】 BT500 battery checker tester thanks to it's powerful intelligent chip, the test result is up to 99.99% accurate. The test results can be stored and reviewed on the screen directly. Equipped with 100% high-quality safety copper clip, which has reverse polarity protection and spark-proof function, over-voltage protection and over temperature protection.
8.2Good
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10
ZTSZTS – Mini Multi-Battery Load Tester Mini-MBT
Main highlights- SIMPLE TO USE: No switches or settings, fully automatic 2-second test easily identifies weak or failing 1.5 V AAA AA C D N 1.2v NiMH NiCd 3.6v Li-Ion 3v Photo Lithium 9v alkaline batteries
- SAVES YOU MONEY: Test the remaining percentage of your battery’s capacity before recycling it, keep an eye on all the batteries in your home
- COMPACT DESIGN: Small size is easy to pack and travel with, probe and lead wire conveniently store away in the seam
- BUY WITH CONFIDENCE: Proudly made in the United States with a one year warranty from date of purchase
- ACCURATE MEASUREMENT: Patented high accuracy Pulse Load Technology measures the charge and life of your batteries under a load; more reliable than just a voltage readout
8.1Good
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