In my opinion, There all crap except one.
I have change more batteries then most people will ever see.
In heavy equipment the weakest link is the batterers.
IT take between 75 and 125 amps to start a 14 L diesel.
Modern equipment can draw 45 amps at a idol.
Then turn on 14.000.000 candle power of lights, 2 on board computers.
Once every thing is turned on the machine. It pulls 65 to 80 amps of continuous draw.
This battery is also the # one used in racing and in safety equipment through out the world.
I myself have been using this brand for over 30 years.
I have used them in boats,cars,bikes and sleds.
I would tell you what brand this is. But that would be unfair to it's competitors.
Also use a marine cranker. this battery is designed for this.
They have large plates in it, to with stand long periods of storage.
They are also built to with stand the hard jarring that is only found in the boating world.