SFK 275EX, space efficient and feature packed LiFePO4 battery
At first glance, the SFK 275EX looks like many other 275-300 amp hour internal BMS lithium iron phosphate batteries. With Bluetooth communications, heating, long cycle life, and a good warranty it seems to compete well with other batteries. But, closer inspection reveals a battery with features above and beyond anything I’ve seen in similar form-factor and priced batteries. Not only that, it comes with a thorough and readable manual.
