Question about the Joye 510 Passthru with inline battery

[BGabe]

I’m looking to place an order next week and I have been eyeballing the Joye 510 passthru that has the inline battery. What a great price!!! But, I’m concerned about voltage. Is it a regulated 3.7v or does it switch to 5v when plugged in? I have some Joye SR attys and I’m a little concerned that 5v may be too much for the 2.2 ohm attys

 

[cskent]

The PT with the inline battery always runs off the battery so it's 3.7v even when plugged in. I ran mine with SR's and it worked great, I also used LR's on it and it was fine with them too.