I am representing an established company of car parts import & export in Mozambique. I am interested in batteries. I have a few questions as follow, 1 - what is the battery life guarantee, for example for how many months it must work? 2 - How much time do you need to ship the batteries? 3 - is it possible to print my given name on the battery? 4 - can you give me a few references of your other clients to whom you send your batteries and your company profile? if you are serious in doing business then please get back to me, thanks.