What battery should I choose?

The people of this question. Akum which company is better to take the battery backup. There is a choice between Delta, Sven, Powerloom, CBS, ARS and Dexpot.
Native BB Battery lasted a few years, but alas now in boutiques we do not. Now standing pig. He died in half a year. What can you take to have enough for a long time, and then to pay half a Grand for the battery and throw it through the floor as it is not ice.