Yea, I've actually been using the SLAs as well. I ride the LiFePO4 to work, then put it on the charger (wherein it gets to trickle charge for about 8 hours). While I'm at work, I use the SLAs to putt around. When I'm ready to go home, I leave the SLAs on the charger at work overnight. Works great! The commute is about 13 mi. round trip, which is nothing for the 20ah lithium. I haven't had a chance to really put it to the test yet...

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Paul