Would have bought it if it had 2 RAM slots

I bought it 2 months ago (Czech Republic) with the same specifics and it's performing about the same either - I gets more than 10 hours constantly, but it needs to be said, I switched it to the battery saving mode via Radeon power management. BTW, I got it very cheep without preinstalled Windows. 

Finally you guys have posted the review!

I have purchased the Lenovo Ideapad 5 14ALC05 last April in Malaysia for an equivalent of $620 for Ryzen 5 5500U, 8GB RAM + 512GB SSD.

But mine came with a 44.5 Wh Battery and its charges via 65W proprietary DC port although the USB Type-C port supports Power Delivery.

With this battery capacity, I only manage to achieve an endurance between 5 to 7 hours.

Everything else seems the same. I wonder why Lenovo has shipped this model with different battery capacities.

Sascha, et al: are you ABSOLUTELY sure about that 5.4 Wh idling?

Not the first Ryzen we see with these numbers, and Intel's have to trouble hitting <3 Wh on this same Compal battery. I don't get it.

If you (1) blow up those 3 Wh by factoring out all the Intel tricks, so:
no more reduced panel self-refresh (60Hz -> 40 Hz),
no more uncoupled VDDC (which Lucienne & up now does anyway),
and forget about 500 MHz LFM...

Then, (2) when you re-adjust for:
AMD-standard 48Hz,
Vari-Bright (AKA "88 nits is enough for everybody"),
and package V gating (for each separate die of Zen cores),

you should arrive right where you started. At 3 Wh. Perhaps even lower. What's going on then?..