All 3 are Eneloops, just not the same lines (the 2450's are pros). Also their Tjugo charger is one of those chargers that slowly pulse-charges each cell individually and checks the delta, it's a very overengineered and conservative charger design that won't roast the AAA's and AA's from them. Decent video of teardown of it, though the guy wasn't aware of this style of pulsed-charging and why it's done: https://www.youtube.com/watch?v=gG2clNRFz2k