Not a real negative thing, but I don't want it lit up all night in the garage

This thing is great.

I've found that the best thing to do is to let the charger do it's 'thing' according to the software and not intervene

2 months after the Warranty runs out, the thing just stopped dead.

I have owned this charger for about 6 months and have nothing but good things to report about it.

this thing is awsome

downright sexy and the coolest thing in my tool kit

connectors not some proprietary thing.

This thing gets really hot when you charge

it must have fixed something it thought needed fixing; which I presume to be a good thing.

So this thing is pretty great at battery revival.

This thing is awesome

Ended up in the trash, what a waste of 200$. I have had zero problems with optima products over the years as almost all of my vehicles have red tops in them but this things was a waste of my money

This thing is awesome.

I love this thing

I return this useless potentially hazard thing

I really wanted to love this thing but only after using it three times the storage hanger wings on the chargers back side that enables it to hook onto the storage caddie both broke off

This thing is awesome!

These things are incredible

Got this thing, super easy to use.

I wish this charger had a 10A rapid charge mode ... besides being significantly faster that would enable you to do things like unhook the negative lead in a car with a dead battery, and charge it for 30-60 mins in order to start it

Love this thing, very well made

Love this thing!!