Great Value, Support and features.
The Contenders
ECO-WORTHY 12V 280AH LiFePO4 Lithium Battery with Bluetooth
CHINS Bluetooth LiFePO4 Battery Smart 12.8V 300AH
LiTime 12V 280Ah Bluetooth 
SOK 2V 206Ah LiFePO4 Battery Bluetooth
Great Value
The Eco-worthy comes out on top with a $/Wh of $0.12.
So for 1kWh of power the Eco-worthy would cost $120, while the Li-Time would cost $240.
Tech Support
I have worked with Eco-worthy, Chins and Li-Time, thru email and Amazon support and they have been very responsive.
Features
Bluetooth just makes life much easier to monitor the battery especially if using multiple batteries in parallel.
Additionally all the batteries comes with BMS to prevent the battery from over-charging, over-discharging, and short-circuit.
Winner
ECO-WORTHY 12V 280AH LiFePO4 Lithium Battery with Bluetooth
Hope this helps. Save money, live healthy and be blessed.
Links to mentioned items below
ECO-WORTHY 12V 280AH LiFePO4 Lithium Battery with Bluetooth
CHINS Bluetooth LiFePO4 Battery Smart 12.8V 300AH
LiTime 12V 280Ah Bluetooth
SOK 2V 206Ah LiFePO4 Battery Bluetooth
Hope this helps. Save money, live healthy and be blessed.
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