How to connect IceCap Battery Back to Hydros Wave Engine?

[tkardaridis]

@tkardaridis As you see above CoralVue is no longer on this forum. You will have to talk to them else where.

OK, thanks a lot.

 

[steveb]

I have the Hydros to icecap battery backup cables in.

I don’t have a gen 3 battery but I do have a couple of gen 1’s, one of which has a bad battery. I think I read gen 1’s are also 12v.

So rather buying a gen3 and rather than replace the small battery in the gen 1 unit, I wanted to go with a larger external battery and use the existing circuit board.

This is the internal circuit board in the gen 1 battery

And here is the wave engine diagram

It looks to me like there is a diode on the circuit board that prevents current flow from batt/pump output (24v) to the battery/battery charger side (12v).

But allows it to flow from battery to pump output.

Ie 12v can flow to wave engine if 24v is missing but 24v power can’t flow to battery or battery charger.

Hoping someone with electrical smarticles can verify this for me.

 

[KWolfe81]

It looks to me like there is a diode on the circuit board that prevents current flow from batt/pump output (24v) to the battery/battery charger side (12v).

But allows it to flow from battery to pump output.

Ie 12v can flow to wave engine if 24v is missing but 24v power can’t flow to battery or battery charger.

Sorry to dig up an old thread but Steve, looks like you were doing exactly what I'm interested in attempting. Great find regarding the relay and shoving 12v battery in the WaveEngine DC input. Did you ever attempt to DIY this interface?

 

[Blu-J]

Im going to try and bring this thread back, I think with some simple wiring 2 12v car batteries and some diodes and a 24 or 2 12v bank battery charger could make a great battery backup!