Did anyone else purchase one of these as a spare? I've been using it from full charge to nearly depleted the first half dozen times (since that's what Seido recommended) and it STILL will barely keep a charge half as long as the regular Moto. I've got about a 40% charge left and have talked for about 20 minutes total, and sent about 50 texts since 11am this morning when I took it off the charge. 5 hours later, i'm at roughly 40%, where my regular Moto would have about 75% remaining. Anyone else had an issue with these? It's "supposedly" 50mAh less than the OEM, but I seriously have my doubts