My eneloops perform properly in my other LED lights and I use a pro charger to charge them…often at a low charge rate to ensure max charge capacity . I am confident this issue is one of factory over rated specs . A no name $7.50 light isnt gonna give 80 hours runtime on 3 lumens, when a name brand $28 light is rated to give 30 hours at 3 lumens. I think this is a issue of XTAR over rating specs, and the name brand properly rating their specs.