FLA (Flood Lead Acid) batteries are the most used power sources in the entire industry. These batteries are 100% recyclable and therefore a real part in the Renewable Energy industry. FLA technology is well-known and therefore a reliable source to obtain power for your home-grid.
Depending of your goal, for power consumption at home, you need a battery who can provide you with lots of power. In case you are very high power consumer, it's recommended to go for 2V batteries. Are you more a modest consumer, you should option for 6V batteries. A popular and economical 6V battery choice is, Trojan T105 RE.