Eartec Rechargeable 3.7V Lithium-Ion Battery for UltraLITE & HUB Systems

I'm using with Eartec Ultralite's and the HUB. So far I've found they last half a day easily (6hrs) on the Ultralite headsets, but I've occasionally had to swap batteries sooner on the HUB. If you're using a HUB system, maybe get an extra battery for your HUB just in case.

Eartec comm systems are one of the rare pieces of utilitarian kit that makes me smile every time we get to use them. They just work. Phenomenal range, and the HUB system is just awesome. When we first started using them, I was a bit worried about battery life and bought an extra battery for each headset (6, 12 batteries total). I was shocked when 1) these batteries last more than half a day each (4-6 hours) and 2) they seem to take less than 20-30 minutes to fully charge. I know they're small batteries, but charge time isn't something I have to worry about when we use our Eartec system. I was going to buy multiple chargers and 2-3 sets of spare batteries...but these are so good and charge so quick, my initial purchase was completely adequate for a 6-10 hour production day. Given the quick charge time, we can charge half overnight and the other half when we come in for the next production day and not have it impact production at all. I'd recommend having one extra battery for each headset in your kit + 1-3 additional just in case. (We always power the HUB with mains power whenever possible, so that gave us 1 extra battery out of the gate.) I have no clue how long these will last, but they're so cheap it doesn't make sense to NOT have a few more on-hand than you need.