SX530 HS Battery strength

[JMcKinnon1966]

I recently was shooting video of a concert with my Powershot sx530 hs. I used up 2 batteries in about 40 minutes. Is there a stronger longer lasting battery for this camera?

[rs-eos]

Are your batteries the Canon NB-6L or NB-6LH?  The latter appears to be the newest flavor of the battery and around 40% more capacity than the former.

[JMcKinnon1966]

I have both but it was the LH That I was using