Review on 12V 24Ah LiFePO4 Battery Pack LF4040, 12.8V 288Wh Deep Cycle Rechargeable Lithium Iron Phosphate Batteries For TalentCell by John Love

This is the cheapest Lithium battery in the market. I was hesitant to buy but due to its price I wanted to give it a try.I did some comparison tests between this (24AH TalentCell) battery and expert power's 20 AH lithium and Mighty Max 35 AH AGM battery.I should point out that with Lead Acid and AGM batteries, you are not supposed to go below 50% capacity because it cause harm and may reduce the battery's life.The first test was with a hair drier at a low setting with an inverter. It got warm as expected but lasted 40 minutes whereas, 20AH expert power's Lithium lasted 30 minutes and 35AH AGM lasted 22.5 minutes. So if you do the simple calculation by normalizing the rated capacities, expert powers Lithium performed about 2.3 times better than AGM and TalentCell performed at 2.57 times better than AGM.The second test I did was with a projector that draws about 130W and AGM lasted 1.88 hours whereas TalenCell lasted 2.16 hours. Again comparing to their rated capacities, TalentCell performed at 1.7 times better than the AGM battery. I returned expert power and did not do this test with it because it drained completely and the charger did not recognize it anymore, so I returned it.So far I am happy with this purchase although I did not use it for a long time. I hope it lasts as long as they promise.Form my experience Lithium performs much better than Lead-acid and AGM's when the current draw is high. If it is small it is more comparable to AGM but still at least 1.5 times better.Normally I was not supposed to go below 50% with AGM but when the load is connected the capacity shows very low however as soon as you remove the load it shows higher. So in all experiments without load AGM ended up draining at 50%.I hope this helps you understand the performance comparison between AGM and lithium batteries and this battery.