I recently purchased a string trimmer and a blower from home depot and had it shipped to me. The string trimmer is a ST1500 but shows ST1502SF and the blower, LB5300 appears as LB5302 on the shipping receipt. WHY? Each is as described on HDs site. I assume the difference is each purchase is a kit, now two batteries and chargers. However still cheaper than two bare tools and one battery and one charger.