I can suggest a charger from Current Automation ( Kya sand) for under R 300.00 . 12V 2 Amp charger with light indicator ( red charging - green full) They are direct importers of battery charges , power supplies and batteries too.
Ask for 15 % discount - that is what I get normally
Battery is more story to it .
Want one that lasts - Then Panasonic or Yuasa - then one above all is Sonnenschein Dryfit but not worth the price ( sold by National Battery )
Panasonic is about R 400.00 , Yuasa same
Rest of China once are all so so - no much difference between them and all around R200.