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Your cart is empty.Product Description
This is a great little affordable gadget, handy tool to check batteries and alternators.
Only compatible with 12V vehicles, such as Cars, SUVs and motorcycles, light truck.
SOLID CLIPS
If you feel it not big enough, try to touch the clamps to the correct posts to activate the meter.
SCREWLESS DESIGN
The shell is designed in one piece, which is not easy to rust and lasts for a long time.
BATTERY MONITORING
Good way to see if your battery needs to be replaced or alternator not charging correctly.
COMPACT SIZE
Ergonomic design for comfortable hand feeling, convenient and simple to use, not expensive.
Connect the test clips to battery positive and negative position, check the LED display to know the car battery condition.
Check before Charge - Battery is alive, "OK" to be charged.
Alternator check - Accelerate your engine to 2000 rpm when the green light is lit, charging circuit is ok, while the red light shine means the dynamo supplies no or very little voltage.
Battery check - Indicate the percentage charging in the battery "Full, Middle or Low".
Cranking check - Red light indicates voltage from Alternator over-high.
DO NOT support 24V trucks!
Specification:
- 6 LED light: 2 red, 3 green and 1 yellow
- Material of wire: 0.06 square millimeter copper
- Max. voltage and current: 13.9V 15A
- Length of wire: 9.84in
- Not only for 12v gas cars, but also for Hybrid electric cars
LukeIamYoFatha
2025-09-05 17:01:04
I frequently test car batteries at our small dealership prior to charging them with a battery charger. I was looking for a cheap and easy method to quickly test battery charge levels and potential alternator issues. The schumacher battery charger I have has a test/charge meter but it is a complete joke. I've been using this little tester for a few days now and it works great. I've found it to be fairly accurate for a general reading.There is another unit similar to this one by Pulse Tech but I decided to jump on this one because of the lower price and I like that this one comes with high quality clamps. The others in this price range only have needle/pointy type receptacles that are less convenient when you need your hands to be free. I also don't like coiled type cords because I've had bad luck with them beginning to fray and lose connection.This tester doesn't tell you the percentage of the battery level as seen in the picture- only a low, mid and full. I'm assuming that low is ~25% middle is ~50% and full is ~75% charge and above. Thats my only gripe with it- the instructions dont tell you what the levels are and I'm assuming a charge of 72% for example would light up as "middle". The instructions are poorly written in "Engrish", they could be a little clearer.For alternator testing, I tested a Lexus SC400 with a brand new battery that was known to have a bad alternator. You rev the car up to 2000+ rpm and connect the clamps to your battery. The tester showed the alternator as faulty so I can confirm it works. I obviously wouldnt put my complete trust in this unit to diagnose everything since it's usually not as cut and dry, but it will lead you in the right direction. For the price, you can't go wrong. Build quality is decent and its no frills.
Seanzilla
2025-09-04 16:15:26
For about 2 years now, the ECO mode on my 2016 Mercedes E350 was not engaging. After looking around online, I thought it might have been the auxiliary battery in the trunk and tried replacing that, but to no avail. I started to have the feeling that my main battery may actually be the cause, and only because it shuttered a bit on a very cold morning a couple of months ago while trying to start the vehicle. I purchased this to be able to more accurately check the battery, thinking the cranking amps had declined over the years on a battery that was about 6 years old already. Sure enough, the battery showed to be bad. When started, the unit was able to show the alternator was charging just fine as well. I replaced the battery with a new one, and the ECO mode works perfectly now. Problem solved!Unit is very easy to use and self explanatory. Good way to see if your battery needs to be replaced or alternator not charging correctly.
batyah
2025-08-29 13:14:45
It's inexpensive so wasn't expecting a $$$ machine but it could stand to be a little heavier so it would lay flat while trying to attach the clasps which are too small to go over the battery top-posts. It works as advertised; I needed a tester which would show if the alternator's internal regulator was malfunctioning since both of the mechanics who tested my alternator said it working and was charging my battery (used their $$$ equipment) but the battery would not stay charged even after they replaced my battery twice. This registered "fault" for my alternator when I first started my car but after driving and retesting it registered "good" so then I knew that the internal regulator was working intermittently and I replaced it. Without this little inexpensive tester I would still be fighting this problem. This did not get hot to the touch or make any kind of smell as other products' descriptions warmed of. It was probably only 1-2 min.s that I had to have it attached to the battery to check my alternator (hook it up, get in the car, start it, and rev the motor up to 2000rpms, keep the car running, get out and look under the hood at the tester's lights and then turn the car off in order to test the battery). It was more than worth the little paid for this.
DE Lehart
2025-08-27 12:14:00
I had my doubts about this tester but my doubts were for absolutely no reason. It's easy to use ,read and seems very accurate . Price is also great , I recommend 100%
J.B.
2025-08-05 17:27:47
I have a car where the battery isn't holding a charge when the car is off. It only has about 20K miles on it. I figured either the battery was bad or the alternator possibly has a short, so I got this thing. First the cable is barely long enough to reach the terminals on my car. My car has the battery in the back under the floorboards of the trunk. Under the hood there is a (+) terminal where you'd expect a battery to be and the (-) terminal about 10-12 inches away on the firewall. I had to tear the cable black/red down the middle to the base of the device to make it be able to reach. Then the clips were barely big enough to get on the terminals which aren't that big.With my car engine off the bottom most light (OK) was red and none of the low/mid/full charge lights were on. The minimal instructions are rather confusing. It seems this either means the battery is dead or able to be charged. I started the car and it had enough juice to start up without being jumped so it couldn't have been completely dead. Once the engine was on, the "OK" turned off and the "full" light turned on. So now my battery went from dead to full (which I know it wasn't cause the care barely started). For the alternator lights it flickered between good and fault before settling on fault. It says you should accelerate to 2000 rpm to do this check so I did that but got the same results. So if this is to be believed I need a new alternator and not battery. If it was the battery I could change it myself; alternator I'll have to bring it somewhere. Guess I'll see when I take it in what is actually wrong with it; not sure this really helped me figure that out.
Yehison
2025-07-31 18:13:30
Funciona bien y cumple con las especificaciones
chinmay shah
2025-07-24 13:57:02
Used many times in winter , and did not require lots of charging. This jumper helped a lot.
MARCEL
2025-07-19 21:30:59
Muy buen producto
Emad
2025-06-02 10:23:50
لا يعمل. وكأنه لعبة اطÙال.
Fahad
2025-05-23 10:21:56
منتج سيئ جدا
Siripuram Rajesh
2025-05-19 15:08:48
Working so good
LukeIamYoFatha
2025-05-08 11:32:05
I frequently test car batteries at our small dealership prior to charging them with a battery charger. I was looking for a cheap and easy method to quickly test battery charge levels and potential alternator issues. The schumacher battery charger I have has a test/charge meter but it is a complete joke. I've been using this little tester for a few days now and it works great. I've found it to be fairly accurate for a general reading.There is another unit similar to this one by Pulse Tech but I decided to jump on this one because of the lower price and I like that this one comes with high quality clamps. The others in this price range only have needle/pointy type receptacles that are less convenient when you need your hands to be free. I also don't like coiled type cords because I've had bad luck with them beginning to fray and lose connection.This tester doesn't tell you the percentage of the battery level as seen in the picture- only a low, mid and full. I'm assuming that low is ~25% middle is ~50% and full is ~75% charge and above. Thats my only gripe with it- the instructions dont tell you what the levels are and I'm assuming a charge of 72% for example would light up as "middle". The instructions are poorly written in "Engrish", they could be a little clearer.For alternator testing, I tested a Lexus SC400 with a brand new battery that was known to have a bad alternator. You rev the car up to 2000+ rpm and connect the clamps to your battery. The tester showed the alternator as faulty so I can confirm it works. I obviously wouldnt put my complete trust in this unit to diagnose everything since it's usually not as cut and dry, but it will lead you in the right direction. For the price, you can't go wrong. Build quality is decent and its no frills.
Seanzilla
2025-04-27 15:55:02
For about 2 years now, the ECO mode on my 2016 Mercedes E350 was not engaging. After looking around online, I thought it might have been the auxiliary battery in the trunk and tried replacing that, but to no avail. I started to have the feeling that my main battery may actually be the cause, and only because it shuttered a bit on a very cold morning a couple of months ago while trying to start the vehicle. I purchased this to be able to more accurately check the battery, thinking the cranking amps had declined over the years on a battery that was about 6 years old already. Sure enough, the battery showed to be bad. When started, the unit was able to show the alternator was charging just fine as well. I replaced the battery with a new one, and the ECO mode works perfectly now. Problem solved!Unit is very easy to use and self explanatory. Good way to see if your battery needs to be replaced or alternator not charging correctly.
batyah
2025-04-26 17:10:45
It's inexpensive so wasn't expecting a $$$ machine but it could stand to be a little heavier so it would lay flat while trying to attach the clasps which are too small to go over the battery top-posts. It works as advertised; I needed a tester which would show if the alternator's internal regulator was malfunctioning since both of the mechanics who tested my alternator said it working and was charging my battery (used their $$$ equipment) but the battery would not stay charged even after they replaced my battery twice. This registered "fault" for my alternator when I first started my car but after driving and retesting it registered "good" so then I knew that the internal regulator was working intermittently and I replaced it. Without this little inexpensive tester I would still be fighting this problem. This did not get hot to the touch or make any kind of smell as other products' descriptions warmed of. It was probably only 1-2 min.s that I had to have it attached to the battery to check my alternator (hook it up, get in the car, start it, and rev the motor up to 2000rpms, keep the car running, get out and look under the hood at the tester's lights and then turn the car off in order to test the battery). It was more than worth the little paid for this.
DE Lehart
2025-04-04 18:38:25
I had my doubts about this tester but my doubts were for absolutely no reason. It's easy to use ,read and seems very accurate . Price is also great , I recommend 100%
J.B.
2025-03-12 10:30:01
I have a car where the battery isn't holding a charge when the car is off. It only has about 20K miles on it. I figured either the battery was bad or the alternator possibly has a short, so I got this thing. First the cable is barely long enough to reach the terminals on my car. My car has the battery in the back under the floorboards of the trunk. Under the hood there is a (+) terminal where you'd expect a battery to be and the (-) terminal about 10-12 inches away on the firewall. I had to tear the cable black/red down the middle to the base of the device to make it be able to reach. Then the clips were barely big enough to get on the terminals which aren't that big.With my car engine off the bottom most light (OK) was red and none of the low/mid/full charge lights were on. The minimal instructions are rather confusing. It seems this either means the battery is dead or able to be charged. I started the car and it had enough juice to start up without being jumped so it couldn't have been completely dead. Once the engine was on, the "OK" turned off and the "full" light turned on. So now my battery went from dead to full (which I know it wasn't cause the care barely started). For the alternator lights it flickered between good and fault before settling on fault. It says you should accelerate to 2000 rpm to do this check so I did that but got the same results. So if this is to be believed I need a new alternator and not battery. If it was the battery I could change it myself; alternator I'll have to bring it somewhere. Guess I'll see when I take it in what is actually wrong with it; not sure this really helped me figure that out.
Yehison
2025-03-03 14:36:05
Funciona bien y cumple con las especificaciones
chinmay shah
2025-02-28 18:51:02
Used many times in winter , and did not require lots of charging. This jumper helped a lot.
MARCEL
2025-02-09 13:02:42
Muy buen producto
Emad
2025-01-29 18:45:28
لا يعمل. وكأنه لعبة اطÙال.
Fahad
2025-01-04 14:10:31
منتج سيئ جدا
Siripuram Rajesh
2024-12-13 11:10:22
Working so good
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