I have seen a lot of people argue you must use a 45W output power bank, probably because it's the charger output Valve recommends for continuous play.

I have yet to pass 30W during play (admittedly I play with 100℅ brightness, not 120%). It will charge at a miserably slow rate, but if I start a session at full battery, I also end the session with a full battery.

If you own a 30W power bank already, it is not some strict requirement to upgrade it for the frame, just make sure to use the right output port.

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[–] 4 points 3 days ago

I've never seen it draw anything close to 45W even in play+charging scenarios. It does momentarily go over 30W at times, but you really don't need much to keep it going, and charge at the same time.

With a 65W 20 000mAh bank in my pocket 4-5 hours seems to be about what I get.

I'm very happy with the small internal battery, as I how light the HMD itself is, is a key feature for me.

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