You have shared a fantastic diary with us.You have done various task on this day. You went to maker to make charger for your bettery by which you can run all your electrical device. You have spent a long time to do this task. After finishing finishing all tasks you went to home before just magrib. After that all device were installed by an engineer. Now if the electricity has done, there will be no problem to run all the electrical devices because you have a battery backup.It did a wonderful task to keep a Battery backup because the electricity will be gone more and more time in this hot weather and season. All the best brother.