I think that I’ll go with a LiTime 12V 200Ah Plus Lithium LiFePO4 Battery, Built-in 200A BMS, 4000+ Deep Cycles, Max 2560W Power Output, FCC&UL Certificates, 10-Year Lifetime, Perfect for RV, Solar, Marine, Off-Grid at CAD 850$ on www.amazon.ca with free delivery and add a second one next year...