How can I create a continuous UPS using a 12V 7Ah battery and an adapter?

[getzme4u]

12 v 7 ah battery charger urgent

hello everyone
i am getting stuck with 12 v 1 amp adapter and with 12 7ah smf leada acid battery .
i give supply from adapter to battery through 1n4007 and then from this batttery to my microcontroller kit.
by this my batteyr get charged and kit gets supply also at the same time but i am feeling there is some mistakes.
so please guide me
my need is: i am to chargemy 12v battery with 12 v adpter and continuoly give supply to my microcontroller kit.
in that period it will cahrge battery and when power goes then give supply from battery

 

[LostConjugate]

The common way of doing this is to have the battery always providing the power and charge the battery at the same time.

Example for a computer UPS.

In a continuous UPS, the computer is always running off of battery power and the battery is continuously being recharged. You could fairly easily build a continuous UPS yourself with a largish battery charger, a battery and a power inverter. The battery charger continuously produces DC power, which the inverter continuously turns back into 120-volt AC power. If the power fails, the battery provides power to the inverter. There is no switch-over time in a continuous UPS. This setup provides a very stable source of power.