No more xfce power manager. Alternatives?

Google tells me that the xfce4-power-manager now requires 
xfce4-power-manager-plugins for a notification icon; it also seems to 
indicate this doesn't work in the fluxbox notification area. I am 
getting OSD updates from it, though I'm not sure they're coming in 
reliably, and it's (mostly) working to suspend/hibernate etc. (There are 
some bug reports in my future, probably during a night of heavy 
drinking, re: that, but nothing to do with fluxbox.)

The whole xfce-power-manager/fluxbox shebang was working fine for me on 
my old laptop with Debian Wheezy; I've just gone to Jessie on a new one 
w/ xfce4-power-manager 1.4.1-1 and can't get a visual on my battery 
status for love nor money. Tried wmbattery and it sticks at whatever the 
battery status was when I logged in, doesn't update. Same with the one 
(I forget the package) that puts the green bar across the bottom of the 
screen.

What are people using for power management & to keep an eye on battery 
status these days? (Is there some necessary, and completely obvious, 
package that I should be installing to make other battery monitors work?)

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