Thread: Second Battery installation

Originally Posted by Markus1

Tim. Just like to say thanks. The sc80 plus yellowtop combo is amazing. 2 weeks in Tassie running the 60l fridge and I was laughing, had some warm weather too. Provided I did some driving every couple of days it was gold. Even 1 hour was enough. That yellowtop accepts a killer charge rate. I remember monitoring it still pulling in excess of 45 amps after 30min! Ha....hope the D3 alternator is up to the task. Never needed solar for that trip....but I can see it would be necessary if planning on lobbing up for much longer than 2days.

Hi Mark, you can not harm your alternator ( or any other alternator ) if you have a large battery capacity and it's in a low state.

I have a large number of D3 and D4 owners with an auxiliary battery under the bonnet and 3 large house batteries in their caravans, and they have no issues with recharging all their batteries while on the move.

All alternators, by their very design, are self-protected against current overloads.

PS, thanks for the thumbs up.

Originally Posted by drivesafe

Hi Laurie, what are you planning on using the D3 dual battery system for?

Hi mate its to run my fridge and have an ac/dc outlet connected to an inverter