• shalafi@lemmy.world
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      10 days ago

      I had an Oukitel that I ran for almost 4 weeks. Had to charge it for a trip off grid. Talk about chunky!

      Might buy another model, but had to drop Verizon to get it working and T-Mobile took a week to figure out how to activate it. PITA, but it was solid once working. Great BT speaker, couldn’t kill the battery, everything worked great. Carrying the thing was a pain, even with a pack. Not sure I want all that mass again.

      If you want a phone you can beat a man to death with, Oukitel it is!

      • gandalf_der_12te@discuss.tchncs.de
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        9 days ago

        Uhm IIRC typical battery is 2000 mAh/day, so one week battery is 14 Ah/day, which is 50 Wh assuming 3.7 V.

        A typical sodium ion battery (which i very much like btw) typically holds 0.2 kWh/kg, so 200 Wh/kg, so to store 50 Wh, you’d need around 250g of battery.

        For reference, i think smartphones should be about as heavy as an apple (fruit) which is 100g average. And the battery makes most of that weight (like, 80%). So the battery could be about 80g, which would store 16 Wh of energy. That would make about 4000 mAh. Which is what many phones today already have. Which lasts for 1-2 days.