How to wire Rutland 504 to two batteries using one output from the Marlec HRS2i

[joyfull]

I have recently bought a Westerly Centaur 26 with a Rutland 504 wind Generator and marlec HRSi controller.

The HRSi has just one pair of output wires.

The boat has typical twin battery set up with one for the engine and one for domestic supply wired up negative together then to the earth on the engine block. The positives separately lesd to a big round isolator switch on the bulkhead with BOTH, 1, 2 or OFF.

My question is it possible to wire up the HRSi so that it charges both batteries. Marlec say the HRSi just charges one battery and I can buy an HRDi (£155) that will charge two.

I am hopeless on electrics so any help much appreciated.

 

[simonfraser]

https://www.victronenergy.com/battery-isolators-and-combiners/cyrix-battery-combiners

 

[Mistroma]

I have recently bought a Westerly Centaur 26 with a Rutland 504 wind Generator and marlec HRSi controller.

The HRSi has just one pair of output wires.

The boat has typical twin battery set up with one for the engine and one for domestic supply wired up negative together then to the earth on the engine block. The positives separately lesd to a big round isolator switch on the bulkhead with BOTH, 1, 2 or OFF.

My question is it possible to wire up the HRSi so that it charges both batteries. Marlec say the HRSi just charges one battery and I can buy an HRDi (£155) that will charge two.

I am hopeless on electrics so any help much appreciated.

The 504 will provide a negligible charge. Don't waste money on bits for it, just connect it to one battery. Buy a small solar panel and connect to the other battery via cheap regulator. Put solar to the battery needing most charging as it will provide more than the 504. Even a 10W-20W panel will be worth buying on eBay for a fraction of the cost. Of course you might need a battery combiner for other reasons anyway. I wouldn't spend £155 on an HRDi for a 504.

 

[PaulRainbow]

Definitely not the HRDI, the Victron Cyrix would be my choice, but no need for the heavy duty version that Simon linked to, this one will be fine https://www.batterymegastore.co.uk/victron-energy-cyr010120011r.html

Will allow the wind gen to charge both batteries, as well as any other charging sources. No more need to fiddle with the 1-2-B switch for charging.

 

[joyfull]

Definitely not the HRDI, the Victron Cyrix would be my choice, but no need for the heavy duty version that Simon linked to, this one will be fine https://www.batterymegastore.co.uk/victron-energy-cyr010120011r.html

Will allow the wind gen to charge both batteries, as well as any other charging sources. No more need to fiddle with the 1-2-B switch for charging.

How or where do I connect the input from the wind Generator into the Cyrix.

 

[PaulRainbow]

How or where do I connect the input from the wind Generator into the Cyrix.

The Cyrix connects to each battery positive and a negative. The wing gen controller connects to one battery. The Cyrix will then close when the wind gen charges, it will also close when the engine is running or a solar panel is connected to either battery. This will mean that all batteries will get charged with all charging sources, irrespective of the position of the 1-2-B switch.

 

[halcyon]

How or where do I connect the input from the wind Generator into the Cyrix.

Check the current drawn by the VSR when closed, it may be nearly the same as the 504 produces, unless blowing a gale.

Why just fit a two output controller off Ebay ?

Brian

 

[PaulRainbow]

Check the current drawn by the VSR when closed, it may be nearly the same as the 504 produces, unless blowing a gale.

Why just fit a two output controller off Ebay ?

Brian

It draws 220ma, if the wind gen can't output more than that it wants putting in the nearest skip.

 

[LadyInBed]

The 504 doesn't produce much current.
I assume it is on a pole near the transom. I would take the WG off the pole and put a solar panel in its place with a dual battery solar controller, then sell on the WG and its controller.

 

[lw395]

504 produces 6W at 10 knots.
That's a handy float charge maybe, but on light wind days, a 220mA VSR would be a poor idea.

Whether it's worth finding expensive solutions to charge a second battery is perhaps up to the individual.
If the OP already has the thing, then maybe it would be best to just leave it charging the house bank?
A cheap solar panel would be a better way to spend a few quid on keeping the engine battery charged.