So, with my small travel trailer, I’m starting to look around to put in a 12v LiFePO4 with the capability to charge from shore power, if available, as well as hook up a few solar panels if I’m remote for a while. Ideally in one modest sized (since my needs aren’t huge) integrated piece.
I’m looking at 12v (~100Ah LiFePO4), 120v AC (say, 500-100W pure sine wave continuous), charge the battery at up 25-50a (depending on available power), and PV input of 500+W (I’m shooting to have headroom in case I need to add more panels later). Minimum of 12v (18v VoC) panels, but if it’ll do my current old house panels I got real cheap (I think 58v VoC) in parallel or serial that’d be the cherry on top.
Renology has a 48v/3500W, which obviously won’t work for me and is ridiculously over specced.
Otherwise looks like the Victron Smart Solar 150/35 or 150/45 plus MultiPass 2000VA, although the 12v version has the highest (80a) charge rate(??), which is weird and way more than a single battery can handle. Victron has other separate chargers and inverters that I’ve looked at.
So in short, it looks like I need to piece together either a charger/inverter + MPPT, or a charger + inverter + MPPT separately. Complicating factors is it’d be really nice to allow charging from the 30a hot wire from the 7-pin (trailer does have brakes) connector while towing.
I’m also ground mounting the solar panels, rather than putting them on the roof, and I figure I’ll just completely disconnect the battery from everything with a cut-off switch, and I won’t be leaving it out crazy long (6+ months) without hooking up either to shore power or solar. In theory I could get a small 12v “battery maintainer” 10-20W panel type and leave that secured to the tongue to keep the battery topped up.
So, @Syonyk, have I stumped you for a single integrated part (even if inside, under the hood, it’s made up of separate parts)?
And yes, I know I’m looking at real $$$$, I’d rather spend the money for a properly integrated system that I KNOW will be reliable and safe, rather than a complete hash of DIY waiting for a fire to happen or kill the battery.