RE: battery charging
With any charger there is overhead. This means that if, for instance, your charger can supply 100 ma per hour charging rate, then that means that in 10 hours, it SHOULD put out 1 ampere or 1000 miliamperes. There is overhead, usually in the form of heat (feel the charger.. it gets warm). So, there is about a 20% factor in charging with this charger, meaning that to get 1000 miliamps will take about 10.2 hours or so.
25 hours may or may not do it for you, but it would be close. Overnight, probably, a bit longer certainly.
As suggested, there are better chargers, however to get the best out of your charge and what's best for the battery is to keep it at or below 0.1C.
CGr.