KINGBOLEN BM550 Plus 6V-24V 100-2000 CCA Car Battery Tester, Voltage Waveform Analyzer for Cars Trucks SUV Motorcycle

I run an automotive repair shop and recently lost my battery/electrical tester so I looked for a quick and easy replacement Until replacing it with a more expensive tester. So when I got the tool, my first thought was, it was not gonna be very accurate, but to my surprise, this tool was extremely easy to use for testing batteries and very accurate!! It also test the starters and alternators for load/ripple. Absolutely amazing deal for the money. Testers that do this many features typically run upwards of $150 and if you want printer with it, obviously it would be that. My only complaint would be that it feels very light and a little bit flimsy so if it fell on floor It would possibly break easily. Lastly, the complaint I have is for the screen. When using outside on a sunny day, there is a lot of glare and it’s very hard to see but if used indoors, it should not be a problem. It would be nice to have some sort of screen or be able to turn up the brightness perhaps. Other than that less than $50 I don’t think there’s anything Anyone could complain about this thing is fantastic and very quick!!! I’m thinking of keeping this in my shop for a bit just to Perform. I’m surprised. I’d rate it 4.5/5

This is a fantastic battery tester. It will definitely save you a trip to the auto store to get your battery tested there. This is a very simple to use. It is powered by your car battery. So there is no on and off button. When you connect the cables to your battery the tester will automatically turn on. Following the instructions you will need to pick your battery type which most likely will be 12 volts if you're in America testing your car battery. Then you need to check your cold cranking amps or CCA. I recommend you make sure you know what your CCA is prior to starting this so you can input it in right away when you are prompt. Mine is a larger battery because I drive a truck so it's 710. When I tested the battery it ran at 516 on the final run. This is lower than the 710 but considering that my battery is from 2018 this is fairly accurate. It may fluctuate if you keep on testing it as your engine is off so the alternator is not charging your battery. So every time you run a test it drains the battery just a little bit more. To get an accurate reading I run about three tests and then get an average. I love the digital display which is great. My old battery tester was analog that just had lights that would light up. This gives you an actual number rating which is fantastic. The cables are quite long so you don't have to be hunched over the battery risking accidental cross wires and possibly shocking yourself by accident. The clamps are pretty sturdy with the spring strong enough to withstand a light tug and won't come off the terminals. I like the fact that if you accidentally connect the negative to the positive and the positive to negative it will not ruin this tester. It will just blink to show you an error. All you have to do is just reverse the cables and put them on the correct terminal. This is definitely a must-have for the do-it-yourself mechanic. If you have old batteries this will give you a very good idea of whether you can save that battery or you need to complete replacement. It's small enough to keep me your car which is great because that's where I'm going to keep this one. And the price points you can't beat it.

Very basic battery tester, but will allow testing by CCA or AH capacity ratings so it works on more than just cranking batteries (I am testing non-start rated deep cycles for an electric motor and on-board electronics). It DOES REQUIRE that the battery have SOME juice in it as the unit does not supply its own power. Also, I have not tested it on a weak battery with a bad cell to see if it indicates the error or would just report poor condition. All-in-all, for the low price it is a decent unit if a basic test is all you require. It for sure isnt the one you would use at an auto repair facility, but it did the job I needed to do testing three batteries after sitting idle for more than 18 months. Does NOT come with a case of any kind.

Unbelievable! This gaget works really well! I was skeptical at first when getting this product, I was thinking that.... it's not going to be very accurate. It's actually very very accurate! You can see in my picture that I compare the voltage with my high dollar multimeter. The reading came out exactly the same! The other features that I've noticed that it's automatically reading the CCA. It seems like it was communicating with the battery and tells you all of the battery specifications. It's also can do 6 volts as well. The unit itself is not big at all! You can put it in your tool box with ease! It is very easy to use and straight forward. So if you want something that can read your battery voltage and find out the specs for your battery, you need to get this unit. Well worth the money spent! I highly recommended for your garage..... it'll come in handy.

First off, I'll say it does have two things I'd like to have better. The backlight on the screen is weak, especially working in the sun it's hard to see. I also think it would be better if this had an internal battery, as it depends on the car battery for power. However, this is a functional, easy to use tool to have around. I love that it comes in a carrying case. It's going to more portable than my analog tester. In my comparison against the analog tester, it was accurate in it's measurements. It will do a battery health test, charging test, and starting test. Would I buy it again? Yes - but I could have survived fine with my analog tester only. So I will recommend this if it's your first tester, but if you already have an analog unit, you're probably fine without.

Good purchase

Every car enthusiast person should use this, very useful to know the health of the battery

l'article est comme convenu ,très bien .Et la livraison est ponctuelle !

You can test easily health of any battery

Je suis satisfait de mon achat appareil facile et pratique.

El comprobador de baterías es una herramienta útil y avanzada para revisar el estado de baterías de vehículos de 6V, 12V y 24V, con un rango de 2-220Ah y un sistema de medición de corriente de arranque en frío (CCA) de 100 a 2000. • Compatibilidad Amplia: Funciona con baterías de 6V, 12V y 24V, lo cual permite utilizarlo tanto en automóviles como en motocicletas, camiones y otros vehículos de distintos tamaños. • Rango Amplio de CCA: Soporta un rango de 100 a 2000 CCA, permitiendo analizar una gran variedad de baterías, incluidas aquellas de alto rendimiento y capacidad. • Fácil de Usar: Con una pantalla LCD clara e intuitiva, muestra resultados en segundos, como el voltaje, el estado de carga, la resistencia interna y el estado de salud general de la batería. • Versatilidad en la Medición: Además de comprobar el estado de la batería, también ofrece una lectura precisa sobre el rendimiento del sistema de arranque y del sistema de carga del alternador.