I think you can do better on price.
I'm not a user of either product myself.

https://www.amazon.com/MaySpare-Battery-Isolator-Sensitive-Automatic/dp/B081JL6ZXP/ref=sr_1_264?dchild=1&keywords=dual+battery+isolator&qid=1604000343&sr=8-264

Mark

Dan N wrote:
> hi all,
>
> I am thinking of having an auxiliary battery on my 1990 tintop...
>
> anyone having this isolator?
>
> https://www.amazon.com/exec/obidos/ASIN/B00WTAFR5W/ezvid02-20?th=1
>
> If not, could you please recommend one to me...
>
> thank you
>
> dan
>