it performed better than expected. it has restored several of my batteries, I thought, were bad. It seems to be very soundly built. only time will tell.

This was a perfect gift for my husband!

Excellent charger! Charged my dead battery, 0 volts back to health. Holding afterwards. Some Smart battery chargers can't do this.

Works great! Instructions are a little short .

I only had two battery maintainers before I bought the Genius 10. I bought this to see if it would bring a nine year old Optima back to life. It completely charged the Optima and now the green light is on meaning it’s on maintenance.

Excellent smart charger. Top quality charger to protect your batteries

So far, the 'G10' has outperformed the 'G7200' it has replaced. The earlier model was always unpredictable, and was even replaced under warranty for another unit that mostly behaved in the same way. The '10' does not seem to have most of the peculiarities. It maintains the battery on my vehicle which, after my retirement, stands idle most of the time. The '10' still seems happier when I connect it while the engine is still running, stabilizing the maintenance more directly and quickly tha...

Useless after just charging 3 batteries, now I have to pay freight and wait 4-5 weeks because their product failed? NO THANKS!! Whatever happened to customer service, I bought their product in good faith that it would work......NOT

I needed it today with curbside pickup. I still want it but if you r to cancel k will have to get it elsewhere

Works great. Nice trim package. Versatile.