Battery charger for drill/driver PHD18-2B?

I have a performance power tools drill driver PHD18-2B and the caharger has stopped working. It has power (greeen light) but the red charge light does not come on. I note your comments about spares not being available for this brand as they are made for B&Q, but, is there an alternative? If not is it worth buying another complete kit from B&Q, then I would have two drills and four batteries but still only one charger. Oh, by the way, I am resident in France!!