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BM520 BATTERY TESTER
3 in 1 Professional Vehicle 6V 12V 24V Battery Analyzer
Quick Access & Accurate Diagnosis
Precise SOC & SOH Result Display
The battery test result includes:
- SOH (State of Health); SOC (State of Charge); Voltage;
- Current; Rating; Resistance;
- Battery status: Good recharge, Normal,Retest Afr, Replacement
Voltimeter Test Chart
- The chart tells you how to judge the battery status with the test data.
- The green zone means good/ok, yellow zone means general/weak, while the red zone means poor/bad.
- The red,yellow and green areas on the left are battery voltage tests, battery charging system tests are on the right.
Voltage Record
Voltage data record(Up to 10 pieces of data) and playback.
Voltage Playback
It can playback the voltage data
Voltage Waveform
Support voltage real-time waveform, it is easy to see and compare the min voltage and max voltage.
Screenshot
The battery tester can store up to 10 screenshots.
Jacques Laude
Reviewed in the United States on September 10, 2024
Good tool happy with it
Philip
Reviewed in Australia on July 4, 2024
Very happy
Ralf K.
Reviewed in Germany on July 14, 2024
Die Kapazität geladener Akkus wird als gut erkannt, obwohl sie kaum noch Leben haben....Das kommt, weil die Akkus beim Test unbelastet bleiben.Gut gedachtes Gerät, nur eben ungeeignet.
Anthony w.
Reviewed in the United States on June 22, 2024
Seems to work ok. Not at all accurate with 6v batteries. Had to buy an actual load tester to test golf cart batteries. 12 volt seems a little hit or miss, but mainly good with 12 volt. If you plan on testing golf cart batteries do yourself a favor and buy a load tester instead. This just analyzes batteries and doesn’t load test. In the end, you end up more worried about battery functionality then you do analyzing
Andrew Kim
Reviewed in the United States on January 31, 2024
I have tested the voltage reading from this battery tester as compared to my trusted FLUKE 77/79 multimeter and my HP desktop Multimeter. The voltage reading of batteries using this tester was about 0.5 volt off the readings from other DMM's. I have used 5 separate 12 volt batteries with CCA rating from 540 to 760. The readings were not consistent over multiple readings on same battery (they could be 5-10% variances in reading). The voltage reading was consistently about 0.5 volt DC off the reading obtained by my test equipment. Maybe what I am expecting is not what is begin displayed. So, I left a message to the manufacturer, to see if there is any settings or test procedure/setup that I am missing.I did get a quick reaply back by next day. The content of the reply was that their test method is different and more accurate. My assumption is that bettery voltage level should be what is measured in a standard way; unless I am mistaken. I would think the 0.5+VDC difference between this tester and all my other DMM is a reasonable test of accuracy of the unit. See the attached voltage reading pictures comparing the differneces in voltage reported.Maybe all the cheaper battery testers have 5-10% varaiances in measurement. But, with the modern chips and manufacturing, I cannot believe that can be the case. It maybe that the unit I have is bad sample. I will test little more when the weather gets warmer and see if that makes difference. I measured the battery in car (3x) and outside the car (4x), and the reading by this battery tester was consistently off. Maybe 5-10% variance in reading is OK for normal use. I don't like this inconsistnat and inaccurate reading. Let me ponder whether to return this unit.
Bobby
Reviewed in the United States on April 25, 2024
Accurate and easy to use
mark paulk
Reviewed in the United States on June 8, 2023
I was able to diagnose a battery problem that mechanics didn't. Works great & easy to operate.
Shopper
Reviewed in Canada on June 17, 2023
great
ed white
Reviewed in the United States on March 21, 2023
Had a pickup truck that wouldn't charge. Finally found a bad wire fixed it and hooked up the OBD Resource and checked to see if charging and I had finally found the problem
Heather Cole
Reviewed in the United States on October 24, 2023
Work with a lot of car and this was a good addition. Comes with instructions to help understand it better. i do recommend reading them first. There was some battery setting i didn't understand but that could be my fault. But the batteries i did test showed faults and if they were good as it should.
Matty B
Reviewed in the United States on November 9, 2022
This test unit is as advertised and can test 6, and 12 volt batteries. It’s easy to set parameters and read results. I’ve used it to check a variety of 6 and 12 volt marine and RV batteries. It worked well on all and easily spotted the weak batteries under load testing. Construction of unit is solid. I’ve only had it a couple of weeks but I think it will last a long time with proper care. The case it comes in is also nice.
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