Instruct: Classify Amazon reviews into positive or negative sentiment
Query: was wowed by advertising, but found out they do not hld charge much

found out hard way on trip overseas cant rely on them all empty after i charged befor ei left they fail half the time, i have over 300.00 dollars of them now use new style last 3 years 80% ..Sanyo NEW 1500 eneloop 8 Pack AAA Ni-MH Pre-Charged Rechargeable Batteries