One consideration. If you are producing 1000 watts and you can only put a 500 watt load into from 2 sets of solar panels batts your daily power storage potential will be drastically impaired. To avoid lithium / agm mix issues I run separate chargers to the lithium house bank and agm start blank. Basically, lithium house bank gets all the solar output from 2 Victron 30 amp x 100v controllers connected to 2 sets of 4x 150 watt panels for freezer and refer. They draw about 2,000 watts when both are starting, I have a 3,000 watt inverter to avoid “peak” demand brown out. I turn both freezer and refer off overnight. Freezer bottom is filled with gallon jugs of water. This mass keeps things cold overnight. Refer freezer compartment is full of ice cube trays. These keep refer cool overnight and refreeze during the day, even in 100* weather. My boat is on the Baja in the Sea of Cortez. Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
________________________________ From: Dave S via CnC-List <cnc-list@cnc-list.com> Sent: Friday, November 18, 2022 9:30:41 AM To: Stus-List <cnc-list@cnc-list.com> Cc: pete.shelqu...@comcast.net <pete.shelqu...@comcast.net>; Dave S <syerd...@gmail.com> Subject: Stus-List Re: charger/inverter Pete - when I researched this there were very few that had a lithium-specific output, however the AGM charge profile was recommended. (Lithium specific may not be necessary) This was useful because I could use my existing charger, which offers 3 charge profiles, but cannot simultaneously charge multiple types - you can’t mix. I was planning a lithium house bank and an agm start battery. I had decided an inverter/charger was not in scope because I did not wish to support higher wattage AC appliances, and also because the chargers and typical associated infrastructure were expensive and overkill for my needs. (It logically ends up being sized as a system, and my boat is relatively small - a 33 mark ii.) There are those who will insist that a lithium bank warrants a high-current charger since the lithium bank can charge at a faster rate, suggesting that you don’t get the full benefit of the lithium bank otherwise. This is a spendy slope and imho flawed logic - my car is capable of very high speeds, however I don’t drive at 200km/hr to justify the purchase. I don’t need or want to. If you need to charge extra fast at a quick marina pit-stop then that’s different. All This to say that as I noodled a similar upgrade I came around to sticking with my old xantrex charger - I think it will do three banks at 20a each. The whole system works better than I could have hoped and I never looked back. Dave 33-2 http://cncwindstar.blogspot.com/2020/09/4-chargers-controllers-and-monitoring.html?m=1<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fcncwindstar.blogspot.com%2F2020%2F09%2F4-chargers-controllers-and-monitoring.html%3Fm%3D1&data=05%7C01%7C%7C3dcd243093774d0436a308dac9825a57%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638043858940613246%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=oJAqRnpWTEpvUO3sNcjcomuGyKAPgY4n5TfSJM1FJzQ%3D&reserved=0> Sent from my iPhone On Nov 18, 2022, at 10:38 AM, pete.shelquist--- via CnC-List <cnc-list@cnc-list.com> wrote: I am looking to update my shore power charger and considering charger/inverter with lithium batt capabilities. There are lots of manufacturers out there. Can anyone provide reliable resources to review or recommendations? Thanks,
