CHARGE IT! 4506 6/12V Smart Battery Charger (6/2 Amp) - Perfect for Cars, Motorcycles, Boats & Power Sports Vehicles

When you first plug it in, it defaults to AGM. You have to press the Battery button twice to get to standard (for flooded lead acid). It defaults to 2A. You have to press the Rate button twice to get 20A. Then it does nothing. You have to press Go. It shows either battery V or % charged, but you have to hit the toggle button, which toggles red or blue. It's kinda confusing. They could have made the user interface simpler and more intuitive. But if you apply a tiny amount of brains to it, it works well.Many of my co-workers and I bought this charger when we had a lot of vehicle updates to do at work that took about 1.5-2 hours to complete. This charger always keeps voltage stable above 13V with key on and has never let me down. At least 5 others at my work have this charger and only one of them has had issues with theirs. After he got his exchanged he hasn't had anymore issues.Works great, once charged goes into standby modeI like the size of the charger...most chargers are very heavy. I love the fact that it will charge at varying rates from 2 amp to 20 amps and you can select AGM, Gel, or standard battery modes. My only complaint about it is that the digital readout is difficult to see in the sunlight. Not a big deal. This charger, if it holds up, is really a good buy. I'll definitely buy it again if I need additional chargers.I have had many different battery chargers over the last 50 years--some okay and some not so hot. This is the most versatile and user friendly charger I have ever owned. It tells exactly what the problem is with the battery, the condition of the battery if just discharged, and both the voltage and the percentage charged when charging a battery. It has worked flawlessly over the year that I have owned it. Won't buy anything else in the future.The charger is amazingBought twice first one was broken out of box. No issues with second one.Gotta say, I bought a dozen of these things to charge my electric vehicle. They work perfectly on my 12 AGM's. They do require individual button pushing but they have all been charging and servicing my batteries with no noticeable drop in performance for over 6 months for a fraction of the cost of a fancy charger or BMS.I put them through the paces. They automatically maintain the battery at 5amp or less (less than 2 when fully charged) then dump in a regulated 20amps to refill the batteries under an AGM designated algorithm...from what I can see....They are fan cooled and remember the previous setting if they are unplugged for a while.Most importantly, I have charged and discharged about 40x on AGM batteries and I have not seen any noticeable drop in the battery performance....that means they are doing their job.The shape is odd but functional. The cables are of decent quality and properly rated for 20amps. The AC cord is also of good quality. I opened one up and found many of the parts are sealed in silicone and the parts are not cheap.They are fan cooled, which stays on all the time but draws little power.I have been impresses.