6 of 7 people found the following review helpful.

Charges My Car Battery Fast-Wish Instructions Were Better.

I had originally bought the Genius 1 to keep my car battery fully charged but that one took too long for my needs so I bought this Genius 5 to use instead. I have a Mercedes C300 with an 84ah agm battery that I drive daily just not that far so I was worried about the health of the battery especially during winter. My plan is to use the charger once a week to make sure the battery is fully charged and in perfect working condition. I dont have a garage so I use a 25' extension cord run out to the car when I charge it. The Genius 1 took too long, I would have to leave it plugged in all day then through the night into the morning to get the charger showing a green led light, even then it was pulsating and i couldnt tell if it was still charging or on maintenance mode. Now with this Genius 5 I plug it in and it quickly goes through the red led lights to orange, then an hour or two later it is showing the green led only indicating its charged fully which is a great feature, theres no guessing. So now i can run a cord, charge the battery a few hours then pack everything back up so nothings left plugged in over night. The only complaint is the lack of directions and info on the actual charger, what it does and how it does it. I still dont even know how it supposedly automatically checks and desulfates a battery. And i cannot find info on if its good to use the eye connectors directly to the battery, and where to connect them, to the battery posts or should I look for separate connections away from the battery? As of now I use the clamps and connect them to the battery directly while the battery is still connected in the car. I just recently got this charger so cannot say if it lasts a long time, but from the reviews I figured it is a quality product which is why I chose to go with the Noco name. I am glad that I went ahead and bought this 5 amp charger, the Genius 1 was just too slow for what I use it for. But if i had a garage I wouldnt have any issues using the genius 1 to plug in daily. I only give it 4 stars based on my wanting to have better and more clear directions and info on the chargers. I still dont know if i can use the repair mode on my agm battery, or if its just for regular 12vt batterys.

Yes, I recommend this product.