How to test a car battery using Automotive battery tester from Aliexpress

How do we confirmed if the poor battery that full in the night and drain in the morning

My alternator light show good and the fault light blinks or flashes

What if green light don't come on OK light

Thanks man, I really appreciate you doing this video.

Do you know what it means when I start the car and the alternator state shows solid green as in good but also the red fault light flashes at the same time

I bought something similar but for sure it shows the battery like around 11-11.6 more or less, car won’t turn on so I cant see the alternator. Kinda hate to get a new battery and that wasn’t the issue. Any tips or do I just need to get something more advanced

Hi Tom I’ve got a transit with twin battery’s would I have to separate / remove them while testing, would I get a reading from both battery’s while testing one thx

Exactly what I needed to see! Thank you for not wasting my time.

Can this device check a lawnmower battery that is not on the mower?

My old Fiesta always has problems when temperatures drop, the battery is only a year old but it was a budget one. I was worried my problem may be the alternator, so picked up one of these testers. It says the battery was middle low but alternator good. Hooked it up to a charger which then said 71%. The instructions with the tester were terrible, thank you very much for this video that even I could follow 👍

How much. Price

It's just a Christmas tree light flasher, it gives you no relative information at all, you need a midtronics, associate or autometer battery analyzer spend the money ✅ and get it right the 1st time.

What car is that?

I PUT TOGETHER A 12 V BULB, A SOCKET, & WIRED IN 2 PROBES FROM A "FUCKING $35 METER THAT TOOK A SHIT.
I PROBE NEG, & POS ON THE BATTERY TERMINALS & CAN TELL BUY THE BRIGHTNESS OF THE BULB IT'S 12 VOLTS.

alternator state fault, what does that mean?

random question...but after looking up a vid about these battery testers I noticed you have a Katana battery!! how are you finding it,decent or..I need a new one and my local place only stocks the katana but I can't find much about them online??

the alternator lights don't turn me on, does that mean I'll have a problem?

Hi mate

I did test with engine on lights off and ac off everything good
...but when ac on and lights on with engine on ...alternator light flashes then goes off

What does this mean bad alternator??

Its weird coz battery was low but full after 20 mins would than mot mean alternator working
..im confused any ideas

Are these useful? Also accurate.