Grizzly's NEW XTAR PB2S Review – Supports Protected 21700’s

NEW XTAR PB2S Review – Supports Protected 21700’s

1 Thank

These are nice. Well done.

Did you do any resting to see what the charge rate is for the cells with any given charger (wall wart/supply)? Can it actually make use of PD 3.0 for input? I read the review a couple of times but if this was mentioned, I guess I missed it.
Related: Curious about how long it will take to charge the P42A that is drained to 3.17 volts for instance ?

THX

I did not test charging speeds. It claims to be able to charge at 2A per bay simultaneously, and that would require PD input to get the necessary wattage.

OK. THX. I guess then that it is plug and pray. No adjustable charge current? 2 amps is a bit hot for some of the 18650s that I use. It still is somewhat attractive for just the power bank functionality. Or maybe an occasional travel charger… with the right cells.
Anyway, thanks for the review!

I had a friend who used one of these sort of power banks to power a Pi. It had the “flaw” that when you plugged the power bank into an external charger while powering the Pi, the Pi would reset. So, I think it would pause power output for a few milliseconds when changing modes. Most of the time, my friend liked the “flaw” however, I could have used a unit that did not have this “flaw” and instead behaved more like a 5v DC UPS.

i just received this charger and am having temperature problem. The charger only gets warm with 5v current but when charging or discharging with 9v it becomes too hot(charger is too hot and battery is just warm) .I am using 2 x 21700 batteries and don’t know if this is a normal problem, will I receive a faulty device or is my battery problem?

I don’t think it’s unusual for it to get hot when charging or discharging with 9V so it’s probably fine. If you’re really concerned about it, contact XTAR’s customer service and see what they have to say.

I just pitched my micro-USB model from a few years ago, the plastic case material was deteriorating and was soft and tacky.
I’ve seen it on other plastic devices but usually not this quickly. Hope they’ve changed formulas.

That’s just a very thin layer that can be wiped off. The new model doesn’t have this coating anymore.