Gentlemen, tubular batteries are way better than the regular starter batteries. Yes, quality issues do occur in Pakistan. Other than that, they are generally much better, and have great performance. They are used extensively in India. Interestingly, India is much ahead in efficient energy utilization and production. I did some research for my solar business. as I wanted to import tubular batteries from India. They have 3 years warranty in India!!! Can you believe it? And they generally last 5 years, minimum. You just have to keep the acid level in check, and that's it.
I can help and advise you with your solar solution. There are various types of equipment and brands, with their own pros and cons. In case 1500 watts is your load, the cost would be about Rs. 220 to 230 K. Feel free to discuss the details and what would be suitable for your needs.
Imran A. Haider,
https://www.facebook.com/irtikazsolution
imran@irtikaz.com
+92 304 IRTIKAZ