Great quality battery maintainer. Came highly recommended by Porsche technician and it maintained batteries through 6 months with no issues.

It is a great little unit, unable to fault. Exactly what we needed for motorcycle reflashes & battery charging

Works as designed. We have 3 of these in our shop and work well when performing software reprogramming to support battery health during the long programming cycles

Lo compré porque la marca es de prestigio, lamentablemente aunque le doy un uso ligero, a los 3 años de la compra, dejo de funcionar, el display se quedaba parpadeando y de ahí no pasaba.No lo recomiendo

OK. Lets get this out of the way: I am an ASE certifed 15 cert master, a trainer, and lead diag tech/foreman of multiple shops for the past 40 years. (4 total, if you are good at what you do, you dont move much).I have owned and used chargers by Associated, Midtronics, Schumacher, Opti, Clore, and the 3 major tool companies (80% of which are subcontracted by one of the above, though some of their chargers have been unique to themselves).Lets start with what this does. Its a "Smart charger". Meaning it has various methods of checking a battery it is connected to and it self determines if and how to charge it within the parameters selected if the battery doesnt fail testing. Though it claims to have a POWER SUPPLY mode, It is NOT a power supply charger and should not be depended upon as such. If you need something to power your motorhome or maintain a charge while programming, this is not the best choice. (Sure on a ford or a GM it probably would manage, however on european cars there is significantly higher current draw during programming, some exceeding 75 amps! This charger does not make 75 amps! It makes 20 on high speed mode)That isnt a knock, it is simply a statement, dont buy this thinking you can watch TV and cook microwave popcorn while sitting in the trailer with an extension cord. It doesnt do that and may be destroyed if you force it to try.NOW, what it DOES do. It medium speed charges car batteries. I specifically tried it on a battery with a shorted single cell (Dont ask how I know this, or how youd know, call it a bad battery). What this means is this battery will hold a charge, but weakly, it may self drain (The shorted cell drains voltage from the other cells). I have previously been able to charge similar batteries to 10 or 11v using a standard non-smart charger and brute force charging, but they still dont last, they may drain in a day or a week, and they wont supply full current load when needed. This charger refused to start charging the weakened battery. If left in sulfation mode, it eventually charged to 2.5v, and always stopped there and eventually ended with an ERROR display. This is normal and correct for a smart charger, they dont like trying to charge defective tested batteries.Where that can be an annoyance is old lead-acid batteries. They develop sulfation, what amounts to deposits (Think of it like mold on bread) and it prevents them from taking in a charge. This material can be burned off with a high intensity charge and the battery can fully recover, but a smart charge will sense the battery as not taking enough current in the test phase and refuse to engage a charge (like this one did) so you cant really desulfate batteries well with a smart charger unless they are only very lightly sulfated and still taking a relatively high current load.A very few smart chargers have a "Manual mode" that is not smart. It lets you select a timed or constant charge at a voltage you select (Usually 13.5 or 14 or whatever preset number) and the charger puts that amount into the cables for the time selected. This is what we call manual or brute force charge, there is no testing, no safety shutdowns, no idea if the battery is overheating or boiling its cells. Its useful when needed, but for the most part it should only be used when needed. AGM and GEL batteries cannot withstand high amp charges for very long at all. Smart chargers know this (when the proper mode is used!) and will pulse the voltage in and pause at times to allow the battery to cool and prevent damage. This charger seems to do that, as I watched it engage and disengage every few minutes in AGM mode, it was longer and more stable in lead-acid mode.I was trying to decide which charger I would go with, the extremely highly rated Schumacher, or this one (about the same price). I chose this one because of several reviews and a few videos showing the schumacher's smart mode preventing a 0v battery from charging almost always. This again is normal, if the battery is asleep from long sitting at 0v, or badly sulfated, the smart charger shuts down. Both chargers have desulfate modes, but from the reading this one seemed to work more often down to 3-4v, the shumacher almost universally would not charge a battery that wouldnt stabilize at 5v before charging begins. I charged 2 -DEAD ZERO- volts batteries using this charger. the 3rd (a known defective but barely chargeable battery) did NOT charge and would not begin the process UNTIL I manually charged it for 45 minutes with jumper cables on my idling car. Then it came up to 10v, and the charger attempted charging finally. I let it sit in sulfation mode 3x as a test and NEVER did it command full charging until I manually charged the battery. It would sit in sulfation trickle mode several hours then end charging with error. Even though with some help it would begin charge on the same battery the next day. After charging this battery tested bad both with a conductance tester and with a load tester, but according to load, it was capable of passing a 240cca load (which means capacity of a 480cca battery). The battery was in fact a 650cca unit so it was significantly compromised. I keep it for test purposes.The high rate of 20amps on the Clore charger is what Id call adequate. Its not a speed charger, 30-50 amps are fast, but fast charging comes with its own set of issues, the best way to charge a battery is long and slow. Better for the battery. fast charging heats it, and heat shortens life.Its light weght which may be fine, but doesnt impress me. heavier probably means more metal, more heat sinks, more quality. But its not a featherweight. The Shumacher is heavier.Ive had it a week, so testing is still in progress, but so far, it is a good basic smart charger with fewer features than the competitor (Schumacher) but it seems to do what it claims pretty well.The Shumacher also claims to have a boost mode of higher amps (they use it as their desulfation mode) and a cranking mode of 50amps. 50amps cranking assist isnt much at all. If a battery is SLIGHTLY weak, say 10v charge, where it cranks slow already, that might be adequate. But starters draw 150-300 amps typically. 50a output may come in low and if it does, then the starter will demand whats missing from the battery and the charger, and the excess current draw can be destructive to a charger. Hence why jumper packs state 800-1000cca, they can deliver 200-400 amps at once, and have room to spare.At this point, Its doing what has been asked. No complaints yet, but gonna try another battery on it tomorrow, and also some current probe measurements during charge.

I really happy for this purchase it's great battery charger for the price and professional.

Tried using it at work to keep vehicles alive during software updates, intermittently stops charging and comes up with a battery error even though the battery is good. Have to keep an eye on it and waste time. Get something else. Also the plastic handles break easily.

I used to work in a government lab where we evaluated barreries, battery chargers and battery testers. This unit was recommended to me by my co-workers that tested it after I retired and it appears to work well. Normally I'd connect a data logger to check on the charger's algorithm as I have done on other chargers in the past. Maybe one day. A good charger with all of the features for a good price.

This is the best automatic smart charger for home use. Small but powerful. Ease of use. I just plug it into my onboard Indian Chieftain motorcycle's OEM 2-prong battery tender plug (AGM battery) to charge and for smart storage maintenance. I also use it to condition and charge my full-size truck's lead acid battery using the included positive and negative clamps. This charger includes the positive and negative clamps, an SAE 2-prong plug harness, and a 12-volt plug. I have been using this company's products for a very long time. All of their products are excellent for professional and industrial use. This particular smart charger is the perfect size and has features second to none. The price is excellent also. Check out this company's website (cloreautomotive.com) for full features of this product. I am extremely happy with this purchase and highly recommend! This will charge 12 or 6 volt standard or maintenance-free flooded-acid (lead acid), AGM and spiral wound, and lithium iron phosphate (LiFeP04) batteries.

This is the only charger I've tried that will truly repair and charge a dead battery. I have chargers/maintainers from Noco, Battery Tender, Schumacher, and a GooLoo unit that all claim to "fix" batteries but none of them have worked like this Pro-Logix charger. It takes some time, but once it's out of Maintenance Mode, the batteries are like new and hold charge for months longer than using the other chargers.The features on this charger are great and I like the clever way the clamps and power cable are stored in the back. Having a 20A charge is nice and saves a lot of time over the smaller 2-5A chargers.I still use the Schumacher to keep my mower battery topped off, but when I want the job done right the first time, I grab this Pro-Logix. The others may work fine for maintaining, but I only trust the repair and charge capability of this charger.

Works great for when I'm doing diagnostic on car and do not want battery to drain down. Measured AC ripple coming out and non-existent. Like the visual LEDs to be notified if voltage drops too low. Also enjoy the feet for putting on side of vehicle. Not official for programming due to the lower amperage but noticed on vehicles checked before programming on GM most do not get past 20 amps. Every diagnostic technician should have one. Maybe I should put a picture in a video or something do I have a picture of video

I bought this and a Noco Genius10. Where the genius 10 failed to bring back my car battery (even in repair mode) to an acceptable state of charge and capacitance, this charger did the job very well.At first this charger did not do very well, due to my learning curve with it. What I learned is: for it to work best, on any battery, make sure the battery is low first. If you are charging a nearly full battery this will do very little for it. You must use a light bulb or something to get the battery down to 12.1 or 12.0 volts, then use this charger in agm mode on 20 amps (use 10 amps for smaller batteries) to achieve an excellent charge. I have used it on 3 agms, 2 were 6 volts, and 2 regular flooded lead acid car batteries and it has worked great on all of them after following the procedure of draining them down low first, then charging. If your battery is already dead, you may have to use boost mode to force charge it from stone dead. Not all batteries will come back to life if they are damaged or too old.The AGM mode is the key, it charges the batteries at a higher rate and this helps balance and de-sulfate them. I would not use this mode regularly on flooded batteries, but once in a while is a good refresh for them. I'm not sure that I would use it on GEL batteries either as I have no experience there.The 20 amps of this charger is also key, most 10 amp chargers do not satisfy the 0.3c charge rate of normal car and truck batteries, I feel the 20amps also give it an edge over noco's 10 amp unit.Overall I am happy with it now that I understand how to use it for the best charge possible.Note: if using this as a maintainer you should probably select the correct mode for your battery type. My process is only for balance charging batteries. I make no claim that it will work for you and take no responsibility for any issues you may have, use at your own risk.

I have been in search for long to the point that gave up and just plan to DIY a car power supply that will maintain my battery voltage mainly for programming and coding due to the cost of an actual voltage stabilizer I'm aiming for (2012 X5 E70 50i MSport - dead serious for the purpose about holding the current otherwise you'll walk to your job until no one knows when bcoz of the damage it may cost for not doing so).Decided to put my trust on this one due to the reviews and comments from PRO's online. 1st job I gave is the toughest retrofitting CIC infotainment with a continuous programming session of an hour and a half in a - 40 environment (yeah I couldn't wait!) and boom! I got my Navi and combox back on track! (Battery on full charge to start)4 stars coz haven't get to play on it that long yet without any problems but with its charging ability that's all in one and proven performance for whats advertised, you can't go wrong for the worth you pay for this golden thing!And for the record, I've been with Amazon as a prime member for 3yrs. now and bought a good volume of merchandise since then - THIS IS THE FIRST TIME I FELT OBLIDGED TO MAKE AN EFFORT TO WRITE SOMETHING! chao..