Trickle Charging

[Captain Obvious]

Can I hook up the house battery to a trickle charger and use the emergency parallel to charge both at the same time?

 

[the MfM]

Sure, but what happens when the trickle charger shuts off?

 

[Captain Obvious]

From what I understand, the charger I have charges, maintains, and discharges as needed.

 

[Ilmmct]

There are may more knowledgeable electrical folks on this site, but I believe there are disadvantages in the approach you are considering. I have dual tender from PulseTech:

https://www.pulsetech.net/media/wysiwyg/Pulsetech/etc/New-X2-Guide-8p-2012.pdf

The features of this tender and likely other dual tenders, is it can “individually” and continuously test and apply recharge to each battery only as needed. This continuous test and judicious application of recharge extends the battery life. Again I am not a skilled electrical guy, but I believe the approach you are considering is suboptimal to the primary battery which you will have connected in a series.

 

[Matt Phillips]

I have a dual battery tender for use in the off season. It is the model from battery tender. It’s not cheap but it works flawlessly and keeps the trickle on both batteries.

 

[Bluewater272]

If you've got power, go ahead and get a two-channel ProMariner prosport (or something similar). I don't even think about it, plug in when done and two nicely charged batteries the next time I go out.