thanks all,

a friend mentions these 2

https://www.ase-supply.com/Sure_Power_1314_Battery_Separator_p/sp-1314a-b.htm

http://www.ase-supply.com/Sure_Power_1315_Battery_Separator_p/sp-1315a-b.htm

prices are good but I don't see any difference (direction/bidirectional) -
1314 vs 1315

thanks

dan

On Thu, Oct 29, 2020 at 12:48 PM <alex@mevay.org> wrote:

> Hmmm, mounting on that one seems cumbersome (electrical before
> mechanical), and they don't seem to have current draw specs (like,
> will it eventually discharge both your batteries while parked).  From
> the photo of the bottom, it looks like they're using two
> automotive-style relays in parallel...not sure it relays in parallel
> is legit.
>
> I'm a big fan of the Blue Sea products.  My van came with the SI-ACR
> 7610, and I'm very happy with it:
>
>
> https://www.bluesea.com/products/7610/SI-ACR_Automatic_Charging_Relay_-_12_24V_DC_120A
>
> Street price seems similar, allowing for the wiring.
>
> Alex
>