You need to find a local dealer in Africa. Beware of scams. Batteries alone cannot be shipped internationally. If the laptop works with the adapter always plugged in, use it that way until you can buy a new computer. USPS rules--  Shipping Lithium Batteries to International Destinations? Lithium batteries can only be shipped internationally if they are installed in the equipment they operate.  Shipping carriers are not allowed to ship packages containing only lithium batteries or cells to international locations – they must be included inside a product.  No markings or documentation are allowed on these international mailpieces.  This rule applies to all international as well as APO/FPO/DPO destinations.
I reside in Rivers State,  Nigeria and need a replacement battery for my DELL inspiron 1470 7986 laptop. I need help urgently.  
How to purchase Inspiron N1470 battery ?