Draper 12 24v automatic battery charger draper 45018 the draper 30a fuse for bc22a starter charger is for workshop use fully automatic for continuous adjustment of unsupervised charging features include led charging status display polarity inversion and thermal overload safety protection insulated copper leads and battery clips suitable for conventional lead acid lead calcium maintenance free and gel filled batteries carton packed draper 45018 spare 30a fuse for bc22a starter charger