Hi Aaron, Check out the Battle Born BBGC3 270 Ah 12 vdc LiFePO4,May make sense for you. Chris Worcester chris@solarwindworks.com530-448-9692Sent from my Samsung Galaxy s9. -------- Original message --------From: Aaron Mandelkorn <reoso...@gmail.com> Date: 1/27/22 9:09 AM (GMT-08:00) To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] 24v to 48v upgrade help All, I will do a load analysis for the 24v loads. I am looking to get around 800ah of LI storage at 24v. I typically use the larger 48v batteries from fortress. The space constraints will not allow for a wall full of small 50ah 24v units. I am not finding much selection of 24v 200ah+ options. Is sounds like most of the advice I am getting is towards not upgrading to 48v.Aaron MandelkornPresident / FounderRenewable Energy Outfitterswww.reosolar.comOff Grid Depotwww.offgridnow.com970-596-3744On Wed, Jan 26, 2022, 7:59 PM frenergy <frene...@psln.com> wrote: Aaron, It would be helpful to know how many amps are required to power the 24 volt loads and should we assume the batteries are toast or nearly so? The brand of inverter? As Jeff said there are 24V L-ion choices. Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote: Wrenches, I have a customer with a very old 24v off grid pv system. He wants to upgrade his array, inverter and battery bank. There are no options for inverter/chargers over 4000 watts in 24v dc. The same goes for lithium iron batteries. Everything (of higher wattage and battery capacity) seems to be in 48v only now. If going to 48 volts how do I acomodate the few but important 24v DC loads in the home. Is a 48v to 24v step down converter the best option? What do you think? Any help would be appreciated. Thank you. Aaron Mandelkorn President / Founder Renewable Energy Outfitters www.reosolar.com Off Grid Depot www.offgridnow.com 970-596-3744 _______________________________________________ List sponsored by Redwood Alliance
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