Hello all, I been looking for a low cost 12v 100AH, Lithium battery for Astronomy equipment and on Amazon this week had an "Oasesenergy 12V 100Ah LiFePO4 Battery" $199 + $16 ship. "Oasesenergy 12V 100Ah LiFePO4 Battery, Deep Cycle Lithium Battery Built-in 100A BMS,Up to 15000 Cycles Perfect for...