All I can say is make sure he keeps an eye on his battery voltage, if it is anything like the Lavatube that I got rid of quickly it doesn't cut off properly, the LT I had wouldn't cut off until the battery was so low it wouldn't even power the voltage display (metered at 2.7 volts when it finally died), using your batts until this low of a voltage WILL shorten their lifespan. That's one of the MANY reasons I upgraded from a Lavatube to a Provari and I wouldn't change that for anything.