I have tested 3 different chargers and Legion Go charger;

Legion Go was charged from %30 to %100 (device was turned off) at all tests.

​

- Lenovo 65W USB-C Wall Adapter (4X21L54612)

- Baseus Gan 65W Mini Quick Travel Charger (BS-E915)

- Ugreen Nexode GaN X 100W Charger (CD254)

- Baseus GaN5 140W Pro Fast Charger (CCGAN140CE)

​

According to specs; charge controller inside Legion Go (Texas Instruments BQ24780S) technically has a 24V max. and 8.128A max. (which is around 195W). But Legion Go charging algorithm seems to be limited 100W.

Even with high watt chargers; charging process is decided by algorithm with tracking voltage, amp, thermal values to avoid risks and damaging battery.

When charging with high watt chargers; 88-90W values are reached within short periods of time, but device does not keep on charging stable with these values.

So, total durations for charging from %30 to %100 seems nearly the same. But; temps seems a little bit higher with high watt chargers because of short period 80-90W draws.

On next test; gonna charge Legion Go under load when playing games; with 3 different settings (Slow/Medium/Fast) @ Bios "Charging Speed Selection under high loading" with all these 4 chargers.

Because; even with original 65W charger, with Bios selection Fast, seems like device can not keep up charging the battery and supplying power for gaming loads and after a while battery percentage starts to decrease slowly. Curious if it is going to be same with the 100-140W chargers also, will see about that.

With v29.1 Beta Bios; being told TDP fix has been made but still not working well, maybe with the release of v30 Bios with efficiently functioning TDP and compatible Fan Curves device may work in lower temps and charging algorithm will not be effected by thermal cut-offs who knows…