Battery box - Piggyback terminal connectors and Charging questions

[Tonus]

I'm making a battery box for my Garmin Striker fish finder.
I've currently got the fish finder's power cable connected to a 12v 7.0Ao lead acid battery with female crimp spade connectors but wanted to make something that had a few more connections.

I was going to use piggyback crimp terminal connectors to the battery - one connector going to the Garmin and one to one of these switch panels:

https://www.amazon.co.uk/dp/B0CCHTR7...fed_asin_title

... does that sound like a good idea? So that the power on/off switch that is on the Panel panel turns on the various connections USB/Cig lighter etc and the other connection to the fishfinder is 'Always on' as it were (not affected by the switch).

I'm pretty new to this so any advice welcomed!


Here's a link to the piggyback terminals:

https://www.amazon.co.uk/dp/B09XGZTM...fed_asin_title

[Aquaplanning]

If it's only the fishfinder that is hooked up to it it will be fine. Power consumption is very low, way below what these terminals are made for.

Make sure to use a good crimper tool. Not the flat type of pliers that you can buy in the supermarket.

[Tonus]

Aqua - thanks for getting back. So do you mean if I were just running the Fishfinder and the charging panel powered on (both together) I'd be ok?

Good to know re the terminals - I'm learning about all this as I go along...

I also meant to ask about how I might introduce charging of the battery to this setup? Is there a way to do it without unplugging everything and charging the battery independently?