I work with boats and flat batteries are quite common, this tester is better than the older types as it has a solenoid that switches to test mode, not just a rocker switch. I like the way it works, just connect the tester to your battery, tell it what the CCA is and push the test button. It will then tell you if it is good, weak or dead. It does get warm on testing and you can (according to the instructions) do 3 tests in a 5 minute period, allowing it to cool between tests. For most applications this is fine, it is only on some boats where multiple battery installs are the norm where this needs to be thought about. No issue really for most uses. It will test batteries of up to 125AH and 1000CCA so quite adequate for most DIY & light trade use.
Verified purchase: Yes | Condition: New
Seemed to be a good tool for a while, but after some use the Positive clamp became week because the material is very week & now almost breaks in half when you use it. Also I have had to repair the wire connections to the earth clamp more than 4 times now, with a similar repair to the positive clamp when smoke staring coming out on using it recently. I now don't trust any readings this will show me, as while testing the charging volts with engine running it will give a reading of 15.5v, but the light will also be on to read 'bad battery condition'. So not happy that it is actually effective or giving any correct reading.
Verified purchase: Yes | Condition: New
Прибор работает хорошо ,меряет в автоматическом режиме ,в общем вещь очень полезная.
Verified purchase: Yes | Condition: New
This little item has saved me time trying to explain to customers that their batteries are knackered. Now I can show them the proof in seconds , time saved, wallet out, new battery fitted, move on, next job please
Verified purchase: Yes | Condition: New
Used this upon receipt and has been invaluable
Verified purchase: Yes | Condition: New
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