The Honda battery hit my AIT sensor....

 

has anybody been able to fit this battery under the passenger seat?

 

You can actually mount the battery on the stock tray. What I did with mine is I placed the battery on the tray on its side, drilled some holes in the tray on both sides of the battery and used a cheap adjustable battery tie-down from advance auto to hold it in place. Since it's an AGM battery it is safe to put it on its side. It has been that way for 5 years and still works fine right now, although in the winter I have some issues with cold starts so maybe time to replace it. Five years is a good run for a mini battery.

 

It will not.

It's wider and it's not as long.

We've been using the ETX16 the past few months, a bit larger and fits well in our trays when modified.

 

What needs to be modified? if you dont mind sharing your secret, i have a buschur mini battery kit but need a new battery and was thinking of the EXT16; did you just have to use an air grinder or dremel to make adjustments or was it a pain? Thanks

 

Just grinded off the back side. I know it will work with our tray but I don't know if it'll work with any other tray. The battery isn't as tall but it's just as long and a bit wider.