12V 100Ah LiFePO4 Lithium Battery, Group 31 Deep Cycle with Smart 100A BMS & Low Temp Cut-Off, 15000 Cycles 10-Year Life, Lightweight Replacement for RV, Solar, Marine, Home Backup, Off-Grid

No soldering but you need to work with power wires and crimp style wire connectors. Basic car audio level type skills. 12v 100aH LFP battery. $160 Amazon.com: 12V 100Ah LiFePO4 Lithium Battery, Group 31 Deep Cycle with Smart 100A BMS & Low Temp Cut-Off, 15000 Cycles 10-Year Life, Lightweight Replacement for RV, Solar, Marine, Home Backup, Off-Grid : Health & Household Pure sine wave inverter. $100. Amazon.com: BESTEK Pure Sine Wave Power Inverter - 1000W Car Inverter DC 12V to 110V AC - Car Charger Adapter Outlet with 4.8A Dual USB Charging Ports - Digital LCD Display - Aluminum Housing - Rubber Handle : Patio, Lawn & Garden LFP charger. $20 Amazon.com: BROODAY 14.6V 10A LiFePO4 Battery Charger for 12V Lithium Iron Phosphate Batteries – Fast Charging, High Efficiency, LED Indicator, Durable Design with Overheat Protection : Automotive I have advised plenty of people with this particular build. 1000 watts is enough for the Harbinger's as they're not very powerful to begin with. 12v 100ah should be enough for all day at high output. that's 1200 watt-hours. Price out Jackeries that have 1200 watt-hours or more. That's right they don't come that big and are more expensive for less battery power. This system also allows you to replace any individual component that fails with generic replacements, a Jackery whose inverter fails from say an errant splash of soda is just a paperweight. This is repairable with any other pure sine wave inverter AND upgradeable should you want say a 2000 watt inverter to power a few more devices like a laptop or flatscreen TV. Or like me a 12v portable camping freezer. I also have a 12v50 aH unit myself in 7 years it's lost 5% capacity, looks to be a 20 year service life battery. You'd be lucky to have an inverter last as long and 10 years later where are you going to get parts? And like I'm so very used to. I bet after reading this you have an uncontrollable urge to ask me if I can make it cheaper.