your business is a good step, I beleive you would be mostly catering to the medical, mining, drilling and industrial sector as the battery business is microscopic
The problem is that ANF are a joke - and there is no business regulation in Pakistan (other than FBR who simply hire people to earn bribes from auditing businesses). Manufacturers supply electrolyte prepping instructions on a printed sheet to distributors and they to the shops where 99% of local people buy stuff, you already know the new generation of people are only interested in facebook, youtube, chatting and other boring activities - so for them a ready to put in service product is more valuable - e.g. battery bought from shop rather than running around procuring materials.
My experience living in Karachi was that if one wants quality products - you simply choose those rather than the run off the mill stuff. In the case of prepping batteries I would drive to the chem market and buy the acid, they would make copies of my ID and my business address along with license (they already had verified it) and then load up the glass containers in my car. No police/ANF/bhai log etc. involved.
Yes - they would shoo away a shady or shifty looking person, but if you have proper reason and requirements of purchase and you can meet their criteria - it was a done deal - Wasnt cheap though.
The only way the situation can improve (with your product and lab grade acid) is to supply batteries already filled from distributor warehouse to retail shop. Anytime such responsibility is offloaded to the retail handler - quality control cannot be applied.
The flip side of the coin is that due to the monumental shortage of elecricity in Pakistan - every other "businessman" is now some sort of battery vendor and providing long service batteries in counterproductive to their business, they need customers returning every month, with good stuff they would be seeing customers on a yearly basis, which means they have to think of some other business.