Review on 🔋 Zooms 12.8V 12Ah LiFePO4 Deep Cycle Battery: 10-Year Lifetime, 12A BMS, 4000-8000 Cycles – Ideal for Kids Scooters, Fish Finders, Trolling Motors, and More by Alex Pollard

I bought two batteries of 200Ah (2560W) thinking that I will have 400Ah (5120W) in parallel, but I was wrong, each battery only has 100Ah, useful 1280W, so I only have 400Ah batteries but can use a maximum of 2560 watts (200 amps) from them. After payment I need to buy 1 or 2 more to get the 3600 watts required for a 3500 watt pure sine wave inverter in an RV system. The inverter draws 300 amps at full load. I'm not entirely dissatisfied, just a little disappointed, I should have done more research. On the plus side, each of these batteries weighs less than a single 100Ah SLA battery (I've replaced four of these and saved over 100 pounds). Read the book before using them for maximum lifespan. Four stars because the description should have stated that only 1280W can be used continuously at maximum power, just like a 100Ah battery, other manufacturers claim 2556W usable power, even though they charge $10-20 more costs. I have to buy 2 more (no choice) but I will have a workable 400Ah system but will last as long as an 800Ah system. I am using two 250W PV panels (500W total) and a 40A EPever MPPT solar controller, so the system supports four batteries.