I bought a Pulsar Thermion 2 XQ38 last year to shoot hogs at night and man it's fun. I haven't hunted with it during the daylight hours, but
have played around with it in the yard looking at dogs, etc. Most upper end Pulsars have an internal battery and an external battery that can
be removed. I bought an extra external battery to easily swap them out when the one in the scope gets drained. The internal battery has a USB
port to keep it charged and it comes with a charger to charge the external batteries. Their technology continues to constantly change for the
better. My XQ38 is only a little over a year old and already obsolete. I was on the fence between night vision and thermal, but definitely glad
I went with a thermal.