[deleted]

Comments

• raptir@lemdro.id ⁨1⁩ ⁨year⁩ ago

  The ROI is basically infinite on these even at the sale price of $1000 for the 768Wh with a 200W solar panel (which should approximately charge it each day). Let’s round to 1kWh. The average price of electricity is $0.23 per kWh. This provides $1 of power every 4 days, meaning it would take 4000 days to break even. The battery is only rated for 3000 cycles.

  source

  • thejml@lemm.ee ⁨1⁩ ⁨year⁩ ago

    This isn’t the right comparison to make. These things aren’t for constant power in places you have east access to the grid. Putting it up against a gas generator would make more sense.

    source

    • raptir@lemdro.id ⁨1⁩ ⁨year⁩ ago

      Oh I completely understand, I have one for camping. I was really responding to this paragraph:

      If you use them every day to broadly discharge and recharge off a small solar panel set up you’ll slowly start to chip into your carbon footprint and energy cost. Its also not fossil energy, its micro-renewable.

      source
• clif@lemmy.world ⁨1⁩ ⁨year⁩ ago

  I’m a fan as well. I got into the Bluetti brand ecosystem and I’m pretty happy with it. Ecoflow is nice too. I wanted it to be self contained and (somewhat) portable which they do well… Way better than I could DIY without spending a lot more.

  I think all reputable brands have switched to LiFePO4 batteries but if anyone is just getting into it - that’s the hotness. They last much longer than lion and are less 'splodey.

  Pay close attention to the input limits. You can have 2kW of solar but it doesn’t matter if your device can only take 200W for charging :)

  source

  • ToeNailClippings@lemmy.world ⁨1⁩ ⁨year⁩ ago

    [deleted]

    source

    • PeachMan@lemmy.world ⁨1⁩ ⁨year⁩ ago

      They’re bigger AND heavier. Small vehicle manufacturers still use lithium ion batteries because it lets them cram more range into a limited battery space, without being too heavy. And the fact that a lithium ion battery goes bad in a few years is just icing on the cake. Many people will just buy a new scooter rather than replacing the battery, so the manufacturer makes more money.

      source
    • ebc@lemmy.ca ⁨1⁩ ⁨year⁩ ago

      They are heavier (altough not as much as Lead-Acid!), which is why they don’t tend to be used in “portable” applications like e-scooters.

      source
• Rodeo@lemmy.ca ⁨1⁩ ⁨year⁩ ago

  What’s the lifecycle impact on the environment? You’re saving a few hundred watts a day, but how many watts of dirty energy did it take to build the thing?

  How much do you need to use it per day, for how many days, before it breaks even on the environment?

  source

  • Dran_Arcana@lemmy.world ⁨1⁩ ⁨year⁩ ago

    Asking the real questions here. The sad news is a lot of hybrids and electric cars lose that battle too. It doesn’t seem very intuitive but the dirty energy and logistics cost to produce a Tesla battery will probably always outweigh its carbon savings. I want clean stuff, but I want it the real way, not the virtue-signaling way.

    source

    • antizero99@lemmynsfw.com ⁨1⁩ ⁨year⁩ ago

      I thought this fud had been debunked.

      Are you accounting for the energy used to extract the oil, the energy used to transport it to a refinery, the energy used to refine it, the energy used to transport it to the gas station and then the energy used to pump into your car?

      There is no way that the carbon needed to create a battery is more over the decades of life for said battery along with the renewable used to charge it, than the ongoing carbon released to keep ice engines running.

      There is also a move to power battery facilities with renewables and when we reach a point where batteries are being recycled it gets even better.

      Don’t let perfect be the enemy of good. We have move past ice engines and right now ev is our best option.

      source
    • GeneralVincent@lemmy.world ⁨1⁩ ⁨year⁩ ago

      the dirty energy and logistics cost to produce a Tesla battery will probably always outweigh its carbon savings.

      This has been disproven. Yes, the initial carbon cost is higher, but overall it’s beneficial, especially if we’re talking about the lifetime of the engine. And I’m sure the reduced maintenance helps too.

      source
• Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

  I bought an ecoflow some time ago, I’m constantly impressed with what it can run. Its primarily a backup source of power for my freezer in case of a power outage, but I make sure to pull it out of the closet and use it every 6 months or so to keep it functional.

  It’s slightly over 1kwh of energy storage, and it really helps me understand what a kwh means. It runs a laptop for a week. It runs a lamp with an LED bulb for more than a week. It runs a vacuum for barely 1 hour. It runs a toaster oven, but only on lower settings. It runs a microwave for right at an hour.

  The display on the side that shows output and how many hours it can maintain that output has been very useful to learn more about these things without having to leave things running until the battery dies.

  I definitely recommend the Lifepo4 batteries. Not exploding is worth losing a few watt-hours of storage in the same size and weight, and longevity with more cycles is great, too!

  source

  • clif@lemmy.world ⁨1⁩ ⁨year⁩ ago

    Hah, yeah, measuring the power usage of everything you need to power and doing the math is part of the fun.

    I’m in the same boat - primarily a backup for the fridge/freezer in case of power outage. They’ve also come in handy for running AC power tools when you’re nowhere near an outlet. It made life a lot easier when doing work on a remote cabin that isn’t grid tied… Really makes you appreciate how nice it is to have electricity as a labor and time saver.

    source
• Jakdracula@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Approximately $1900 with solar panel on Amazon. Crazy.

  source
• knobbysideup@lemm.ee ⁨1⁩ ⁨year⁩ ago

  Great for car camping. I’m using a jackery for power in my van until I have the time to finish my build with something bigger and more permanent. For now I just jack that into the house fuse box, and plug it into the van to charge while driving. I have a solar briefcase to put out when camping.

  source