raid - PERC, Caching with SSDs

We have a few servers with PERC H710s, we're moving to SSDs and I wonder, is caching needed given that we're not using spinning disks? Our general setup is as follows

2 X 2TB SSD in RAID 1
Read Policy: No Read Ahead.
Write Policy: Write Through
Disk Cache Policy: Disabled

Is there any benefit to having caching enabled? Are there any issues we might face by not having caching enabled? Are we more likely to suffer data loss (that could be mitigated by having caching on) if a power outage were to happen and our BBUs somehow also failed?

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