Looking for a powerbank, with pass-through charging and always-on features

[Customer]

I want this too as a small DC UPS but apparently it heats up the battery and can be dangerous. It’s been discussed on the forum a bunch of times.

@thequietman44

RAVPower has specifically stated that they built their power banks to handle passthrough charging, so that’s a good option if you’re looking for a “known-working” product.

However, they also warn that using passthrough charging for “more than a few hours” will absolutely damage your power bank, so it’s a bit of a mixed message. The bottom line is that passthrough charging on any power bank causes it to heat up. The longer it’s in use, the hotter it gets, and the more damage to the battery. On high-quality power banks that will only decrease the battery’s capacity; on questionable power banks it could lead to physical damage or a fire hazard.