ANCEL BM300PRO 6V 12V 24V Battery Monitor - Bluetooth Car Battery Tester with Charging, Cranking System Test & Alarm - IP67 Waterproof Voltmeter for Trucks, Cars, Motorcycles, Boats

Car batteries are so expensive and you can't always believe some service centres that claim your battery is no good. I had a Rover car quite a few years back. The electronic control unit would show an error light and prevent the car from starting. I took it to a garage who told me it was my battery failing and they fitted a new one. To be fair, for a couple of days it seemed to have solved the problem. Then it started doing the same thing. Taking the car to a different garage and they said the battery would not have been the cause. It was a faulty ECU that was causing the problem. I never got the old battery back as the original garage said they had disposed of it. I felt conned.When I saw this battery analyser from Ancel I just had to buy it. Okay, at £45.99 its not cheap but I do have a caravan as well with a leisure battery in it. This little device will work equally well with that too. If you have two or more cars/caravans then this device is worth the asking price in my opinion.A lot of the facilities offered with this analyser are very technical and more suited to a professional. However, even a novice like myself, I found it relatively easy to use. It places some heavy loads on your battery and basically analyses the voltage output to see how well the battery handles it. It can detect a faulty cell in the battery as well.The manual is quite clear in its instructions. A handy feature is the USB port on the side of the unit. They supply some PC software on a CD that enables you to pass the analytic data to a printer via your PC.In my opinion, this analyser more than does the job I require of it and does it well.I hope you found my review helpful.

I watched a review about this on Youtube and I thought it would solve my battery power problems which is it is discharging too quickly when left to stand a few days.Sadly the Tester didn't give me a conclusive answer on it's own, simply stating Good - Battery Re-Charge. However, it did prove that my alternator was charging adequately and after carrying out a number of comprehensive current drain checks which were fine I am no wiser as to the cause of the problem other than to conclude that the battery is a good battery but not at it's stated rating.It seems to be quite sturdy and simple to use although one disappointment is that the select button cover started to lift (curl). I should have taken a photo but I simply pushed it down. I would not expect this to happen a relatively expensive piece of test equipment.

Compact, easy to use.I had three batteries to test - one that seemed to have died (my son left the vanity light on for at least 24 hours) wasn't old - possibly 1 or 2 years old.Didn't have charger available so bought a new battery as the quickest solution at the time.The batteries in our own two cars seemed to die quickly when the cars aren't used for two - three weeks.Used the tester on all three.The two from our cars said replace (even after charging) - the internal resistance of each was high, so that made sense.The one I took out of my son's car was absolutely fine (after charging) - well within spec.Haven't tested its analysis of alternator charging yet, but will add to this review when i have.It is quite an expensive unit (given that the batteries we use cost under £80 in sales), but I can't see any reason why it won't last for ages, and provides some peace of mind.

Really easy to use product and while I dont need all the bells and whistles that it has included it looks a very handy device. It very quickly told me the battery on my car was damaged and saved me having to take it to a garage.

I was not expecting to receive a product that was so well made and provided me with such accurate results. We install after-marker equipment into high marque vehicles, it is now "CRITICAL" to carry out battery and charge checks prior to installing Dash Cams etc to ensure the condition of the battery and charge system prior to carrying out any work as the main dealers WILL blame the Dash Cam and bill YOU as we hard wire the product. The first check we made was on a new BMW X6 and we did find an electrical discharge and poor battery condition. We cancelled the install as this will result in poor starting. We referred the driver to report this to the main dealer for a warranty claim. This is a MUST HAVE ITEM for any vehicle technician/engineer.

I bought this to prove a faulty battery to a supplier who was reluctant to honour a warranty claim. Very clear & easy to use. Printer function is useful. All things considered it is a well priced and capable tester.

Easy to use and gives accurate repeatable results. A flat discharged battery will display as replacement needed. Just give the battery a full charge then test again for an accurate battery health reading. Can test either while battery is connected in the car or else removed from car. Wish I had this kit 3 years ago when 2 garages told me I needed a new battery when in fact what I simply needed to do was simply charge the battery up as it was flat.

Wasted many hours trying to find a 'parasitic drain' after this tester told me the battery was 'GOOD'. After a month I took the van for MOT and mentioned the battery kept going flat after a few days, I assumed it was fine as it was a Yuasa manufactured in 2016/7 and this tester told me time and again this battery was 'GOOD'. I'm rather annoyed to say the least after the garage used a Yuasa tster and said it was faulty.... Save your hard earned money and take it to a proper garage to have the electrics tested. I'm getting more cross as I write this, better stop now!!