Amazon offers Prime members the La Crosse Technology Alpha Power Battery Charger, model no. BC700, for $30.44 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.63.) That's $10 under what you'd pay at a local retail store. This charger supports NiCad and NiMH AA and AAA rechargeable batteries and features four modes: charge, discharge, recharge, and test.