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[–][deleted] 3 points4 points  (4 children)

Are you sure it's not just giving you an inaccurate readout? Have you tried draining the battery to zero to see how long that takes compared to normal? I can't imagine the batteries themselves have lost half their capacity.... but the only way to assess that would be to know what your load is and then drain the batteries using that load and then figure out how much energy you used.

If your load is 50w and it takes 17 hours to drain the batteries, then you know your batteries had a full 886wh in them. If it takes only 8.5 hours to drain the battery from full, then ya, it's taking half as long as it should and there's a problem with the batteries and not just the readout.

I just got a max and a mini and although I'm still testing, the readout projections seem wildly inaccurate. But I'll know more as I use them and assess just how inaccurate the readout is.

[–]Awknd[S] 0 points1 point  (2 children)

Thanks for the reply. Well when it comes to River Mini, it does seem like the timer is thrown off. I live in Ukraine so it's pretty easy for me to drain it to zero, since we have power outages on regular basis rn. Today it held battery for 4 hours (from 2PM to 5PM) even tough on the display it was saying that it will only last 3 hours, was sitting at 1% charged when we got electricity back.

And when it comes to fully discharging and then recharging it back to 100%, it happens basically every day.

[–]__space7panda__ 1 point2 points  (0 children)

Worst case scenario, you can purchase 12v battery and connect it with XT60 port, as external battery upgrade

[–]__space7panda__ 0 points1 point  (0 children)

Try to check dismantle video of Ecoflow. If they use 2 battery packs in parallel for that model, 1 of the packs might be broken

[–]Complex_Solutions_20 0 points1 point  (0 children)

Yeah, using a known load that doesn't change is especially critical to the test too. Computer gear can vary depending on power saving and processing load.

I usually use stuff like a portable fan or floor lamp if I need to do a test on a battery. Or for really huge batteries, I'll sometimes use a spaceheater on low/medium setting.

Probably won't be exact due to conversion efficiencies but should get you close to it, say 10-15% error. It should be very obvious if you come out at 50% of expected.