please help me choose new house batteries - Page 2

wl1193 · 11-30-2022, 07:47 PM

Thanks Twoxentrix, Scalf77, Marrett n Boywonder.

I'll think ill stick with agm. the KISS rule applies to me in this case.

I leave the van on the side of my house and solar is running 24/7 as well as the fridge. I have only plugged in shore power a handful of times.

I will need to be more diligent on the batteries n charging them the proper way. And I'll need to turn off the fridge when not not in use.

boywonder · 11-30-2022, 08:03 PM

I just got an email from Renogy .....30% off AGMs.......that may be something to look into......

I also just responded to your PM

boywonder · 12-01-2022, 01:17 PM

Some pics from the OP.

marret · 12-01-2022, 01:53 PM

Interesting. Obviously the Blue Sea plastic covered item is a fuse block, and I see fuses, breaker, but I don't see an ACR/separator although I don't recognize the last photo.

Thanks boywonder.

wl1193 · 12-01-2022, 03:39 PM

Thanks for posting Boywonder

boywonder · 12-01-2022, 05:12 PM

wl1193 has a solenoid for battery separation......we've been texting a little.

marret · 12-01-2022, 05:14 PM

Quote:

Originally Posted by boywonder

wl1193 has a solenoid for battery separation......we've been texting a little.

Thanks, I figured he must.

boywonder · 12-01-2022, 06:37 PM

Quote:

Originally Posted by wl1193

I will need to be more diligent on the batteries n charging them the proper way. And I'll need to turn off the fridge when not not in use.

Consider a Battery monitor.....it will accurately tell you lots about your battery.
Victron and Xantrex both make popular models. Victron has a bluetooth version if you want to see how your batteries are doing from your phone. ..and they have a regular version for less $$.

I had my doubts when I bought one but I use it heavily; tells you exactly what's going on.

AGMs should be cycled down to 50% state of charge (SOC) for a reasonably long life. Discharging them further shortens their life.

wl1193 · 12-03-2022, 04:12 AM

Thankyou. All the info has been very helpful.

moorefc · 12-11-2022, 11:17 AM

1193, there are a number of posts about lithium conversion if you do a search. I would agree keeping the design similar (AGM/lead acid) for your described use, if what you had is satisfactory. I did build a lithium iron phosphate battery, but paused the conversion for similar reasons... ie lead acid is working, dry camping in one location for a couple days rather than week or weeks...don't have to increase complexity, DC-DC, new house charger, freezing temp issues, space constraints, etc. This may change over time....keeping it simple is a great idea....
Enjoy