Grass strimmer (Beeston NG9)

Mac Allister grass strimmer, 18V. The strimmer and battery work well (I used it this morning, running the battery down). But the charger seems faulty, unable to recharge the battery. As I couldn't find a replacement (have gone mechanical, to long-handle shears), this may be suitable to someone who has the same equipment and would like spare parts/units.