LFM vs LFX - What's the difference?

SHORAI LFX Lithium-Iron Powersports battery w/BMS, 3.0Ah 13.2V, "L" polarity, Case Type 2, Length 4.45" Width 2.28" Height 3.50". Shorai Batteries require a charging system output of 13.1 Volts or higher at idle, and must not exceed 15.2 volts at maximum output.

Case size #2, 113mm length, 58MM Width, 89MM Height

Specifications and Dimensions

Part +	Voltage Pb Eq	Polarity	A/HR	CCA (A)	Weight (KG)	Weight (LBS)	Max Charge Rate (A)
LFM09A2-BS12	12V		3.0	135	0.575	1.27	9