The Ex10 series product has a specified a 72-hour data retention time as a hard requirement for our IOP-based RAID products as a generalization. The 72 hour hold time is a must irregardless of the memory size being used (512MB-2GB), additionally the hold times should be sufficient when using 2 Cell or 4 Cell batteries. Please reference the chart below:

 

BBU Retention Time

2-Cell

4-Cell

533MHz 512MB (Unigen)

275 

583 

667MHz 512MB (Unigen)

295 

625 

667MHz 1024MB (Unigen)

153 

324 

667MHz 2048MB (Qmonda)

103 

218