Recommend me a battery charger?

[TUS 373]

We have a 3.7L petrol Jeep, and every so often I do a bit of work on it and find that the battery is dead from opening closing doors, lights, other electrics. It may be a good idea to get a new battery for it, but I had the AA test it and they said the battery was fine.

Battery is 600A Cold Crank Capacity, 120A reserve capacity. Please can someone recommend a good value charger that is adequate of quickly charging the best from flat when necessary. A battery charger with the 'intelligent charging' and conditioning would be a bonus.

There are so many to chose from, and some look quite weedy.