Review on 🔋 BM510 Car Battery Tester: Analyzing CCA100-2000, Load Test, Charging, Cranking System for 6V 12V 24V Batteries by Chris Tisdale

I need a basic car battery tester to quickly determine if I need to replace one of my car batteries. To be honest, I think this tester has more diagnostic features than I really need in this review. The key term in the product description is "Professional analysis and testing device". It is a tool "for checking the health and performance of car batteries, as well as the starting, charging and electric charging of the performance of car batteries". Here are a few key notes. If you're unfamiliar with battery terminology, which I certainly am, the user manual can be confusing to say the least. The manual is generally adequately translated, but has some odd phrasing. The instruction manual is well illustrated and quite detailed and I'm sure it will be of great help to the car mechanic. The battery tester works well and works as described in the instructions. Some screens are difficult to see in bright sunlight. The tester has no internal battery and is powered by a car battery, so a good connection to the terminals must be made. It turns on automatically when connected to the battery. The clamps have a taut spring and are firmly connected to the battery. You may need to remove the wires going to the battery to get a good connection. According to the manual, it doesn't matter which battery post you connect the two clamps to, but they are color coded for positive and negative. You do not need to start the vehicle to perform a simple battery capacity check. There are two main functions to check battery health: quick test and precise test. I started doing a quick test but immediately got confused. The quick test requires the entry of "AH" batteries. Neither label on my car's battery has an "Ah" reading. The label only shows the "CCA" and "RC" ratings of the batteries. I've found it's impossible to find your battery's AH on the internet even if you know the model number. The car dealer and auto parts store couldn't offer any help other than offering a free battery test (which I tried to avoid to begin with). Also, there is no reliable formula to convert CCA to AH. I used an empirical formula (divide CCA by 7.25) to get an Ah rating for one of the batteries and I used that value. The results showed 85%, which means the battery is fine. Then I switched to the "exact" verification method. I had to start with this test because it only requires input from a CCA battery, which I had the whole time. The result of this test showed 90%, so there wasn't much difference between the two methods after all. I would recommend just using the 'exact' test if you don't know your battery's 'Ah'. There are other tests that can be performed, but I quickly got lost in their terminology and meaning. I doubt I'll have to do these seemingly complex diagnostic tests. This tester comes with a nice hard plastic storage case. The bottom line is that this tester has many features that seem most useful for professional battery performance knowledge. I think there may be other testers that aren't that expensive if you're just looking for a simple test of your battery health. However, it got my 5 star rating because it works well and it's not the product's fault that I just got more testing than I needed.