35-Amp Car Battery Charger, 12V and 24V Smart Fully Automatic Battery Charger Maintainer Trickle Charger w/Temperature Compensation for Car Truck Lawn Mower Boat Lead Acid Lithium LiFePO4 Batteries

I'm very happy with this charger. 10A charging capacity and it charges up 12 and 24volt batteries. I've charged many batteries with it and even use it to keep my RV batteries topped up from a big portable AC power pack, works great!

I wasted over a week repairing and charging some drained batteries. This had set back several days. This immediately detected it needs repair mode. Lower Amperage as the battery gets fuller. Not discrete modes, it just guessed when to lower the amps, probably mostly based upon the returned voltage. Easy to understand display. Auto fan off and a lit power switch (when on), no need to hook to while live. Has lights for the mode just like a solar charge inverter only not color coded. Can switch from 10A to 20A to 35A, no need for smaller unit. It is three sizes in one. Clips are the size of a typical jumper so it can handle larger posts. It also does 24V for a typical off-grid solar system. Faster topping off after cloudy days as well.

It’s arrived on time and as expected. I connected it to my battery immediately. The battery was having trouble starting the car and we weren’t driving it much. It charged the battery from 60% to 100% in the amount of time it took me to clean the interior of the car, less than 2 hours. So far I am completely satisfied. The battery is now starting the car better.

This is for the 35A Smart charger. Not the 20A or 10A units First impressions coming out of the box were good. It a good box the unit had some heft to it. First test out of the box was to recharge my 12vdc 250Ah LiGePo4 battery from ~30% SOC to 100% SOC. It did this without much complaint running about 30A (never saw anything above 30A) in about 6 hours. A couple hours of the recharge time I was running a 22" WindMachine fan off of an APC 300w inverter at the same time. It was drawing about between 3-4A. I wouldn't say the unit is quiet when it's on and charging something even if that something is completely full and the unit is set on it's lowest Amp setting. With the unit on but disconnected the fans stay off. But if you have the leads connected to any battery, full or not, those fans kick on at full speed. They aren't super loud, but you will hear them if you're nearby. I will be testing the recover/repair function of the unit soon on some AGM batteries for my Miatas that don't get driven enough. Should be an interesting test of both the 35A Smart charger and my Oukitel P2001 solar generator/175w solar panel combo. The real reason for this unit though is to turn that 250Ah battery into a emergency power station for my apartment. While most people would charge the battery off solar, because I live in an upstairs apartment with a HUGE SW facing porch that is shaded until about 4:00 pm I can harvest VERY little sun. So I will recharge from the mains when they are working and power my fridge, freezer some lights and the fan (if needed) though a new 2500W (5000W peak) inverter I'm getting. Yes the power outages here are serious and often enough for me to go to these lengths. Every time there is an larger outage in the area, everything around me gets back online fairly quckly, but this little section I live in gets left behind. Anyways, so far the 35A smart charger is a winner with minor caveats.

This is working very well for my 2 idled cars that do not get much use since we started working from home. Upgraded previous trickle charger (1.5 Amps) with this beast (35 Amps). Charged from 60 to 100% in less than 4 hours. This would take days with previous trickle charger. I find the screen useful as it shows the current charge. Easy to use instructions. Quality is great and will be reflected in the weight, It is heavy and has well built. In the charging mode it auto stops once fully charged. The inbuild fan stays on while charging. This product is great for maintaining/repairing not reviving a dead battery. Per the instructions this product works with batteries greater than 2 volts charge left in it. If it falls below this product may not work. Perfect for quick charging / maintaining automobile batteries.

This charger doesn't have an on and off switch so even if the charger isn't plugged into the wall when you hook up the cables to the battery it may spark so be careful. The ac cord and the cables for the battery clamps are way too short and the clamps themselves are very cheap feeling...made of plastic and very small. Overall though the charger functions properly and has some nice features for the money. UPDATE: After having it hooked up to my vehicle that has a slow drain for ten days I have noticed that this will not maintain a charge. Once the battery reaches 100% it shuts off and needs to be disconnected and reconnected to start charging again. It left with a battery with only 20% charge when I thought it was going to be fully charged.

Me funciona de maravilla con dos baterías solares de 200ah cada una gel.

I bought this to maintain the batteries i use for trucks. Some sit for a while between uses, so having something that allows me to keep them topped off is nice. This thing flat you doesn't work. No idea why. tested myself to see if i was crazy, and used an old- 90s- "automatic" charger. and sure enough, when applying the leads, they spark. and battery shows signs of life after a single use. This thing was flat out useless. When i bought it, it was around ~45 or so and that is overpaying. But list price now of$130 is flat insane. DO NOT BUY THIS CHARGER.

Super Gerät! Eigenverbrauch liegt ca. bei 40- 80 watt

Necesitaba un cargador de mas que 30 amperios y este cumple con todas mis necesidades. Recomiendo 100x100.

Il suo predecessore ( in foto) ha lavorato bene. Questo è notevolmente migliorato, doppia ventola, modalità estiva/invernale, fusibile, interruttore , sezione cavi maggiorata, e potenza quasi doppia (35 ampere) per cui sono molto fiducioso

Utilisé pour recharger des batteries, fonctionne à 33A, peu bruyant, les câbles sont un peu tiède mais c est normal pour du 4mm2 on est à la limite d échauffement. La fonction desulfateur fonctionne nickel, cela permet de donner une 2e jeunesse à des batteries de 4 ans dont le soh est bas du fait de la sulfatation interne. Le mode d emploi indiqué 4h pour la réparation mais cette durée doit être proportionnelle à l état du soh initial de la batterie à réparer ça peut durer plusieurs jours...Donc faire une mesure de soh toutes les demies journées afin de voir la progression, si la progression du soh devient stable c est que votre batterie ne sera pas plus regenerée. Vous pouvez utiliser un testeur batterie comme le motopower jaune en vente sur Amazon également. Cela fonctionne bien. Vous pouvez trouver des équivalents moins chers mais vous n aurez pas forcément le service amazon.

Excellent chargeur, convient pour plomb, agm, lifepo, en 12 et 24 volts, charge à 16 ampères sur lifepo 24 volts.