first of all tubular battery is a battery technology. By tubular referring to UPS batteries. the main difference between solar and inverrter(ups) battery is the discharge rating. inverter batteries have c20 and above discharge rating. which means the battery should not be discharged within 20 hours of charging. solar batteries have c10 rating. which is it shouldnt be discharged within 10 hours from charing. solar batteries hence having the ability to be discharged and charged daily. while inverter batteries are used only once in a while when power cut occurs.