Battery tester

[stingray1966]

I just got a midtronics PBT 300 used for 70 bucks I works BUT i don't think its accurate my wife jeep had a durast battery that is 13 months old we are not having and problems with it I tested her battery with the midtronics tester and if fails I went over to a friends shop were he has the OTC saber tester and it show her battery was GOOD I can't afford 400 bucks fro the OTC but have found a lot of good reviews on the solar testers but witch one is good the BA 5 THE BA 7 or the BA 9
I don't under stand why the midtronics is not to accurate

 

[Tarheelgarage]

I have the Solar BA9 and it have not given me a false alarm.

Not sure what the problem is with yours.