On Sunday, May 22, 2016 at 6:49:11 PM UTC-7, wrote:

Combining my experience and most everything I've read, LiFePO4 chemistry is not meant to be trickle charged as typical solar panel/charger would provide. LiFePO4 extended life cycles (some claim 2000 or more) depend on deep discharges (like 70% to 80% of capacity) then being fully recharged. If you want to depend on solar charging perhaps it would be better to stay with battery chemistry which likes trickle charging (such as SLA or AGM). FWIW....down the road my guess there will be purpose built LiFePO4 solar chargers which do not initiate charging until the LiFePO4 battery has used 70%-80% of its capacity."

LiFePO4 batteries don't need to be deeply discharged and are "happy" with even light discharge charge cycles. And while it's true, it's preferable to store these batteries at a lower voltage that fully charged (for longest life), that's not always practical (though some chargers have a setting to maintain them at the lower storage voltage (the Shorai I installed in my Honda S2000 has a charger that does that). In any case, you can swap out the solar charge controller in your glider for one that's designed for LFP batteries like this one: http://www.amazon.com/Bioenno-Power-...roller+lifepo4