I need to get a new G3 Ibook battery.. For my dual USB..which has been fantastic. Suggestions.>>> on best buy/value.. I am looking at Newer Technology.. But am not sure which one of their two is best? One is 99 dollars-45.5 watts and the other 119 dollars-53 watts Thanks Janice F. Jorgensen janicejorgensenATcharterdotnet