4 ms·
How long are the batteries going to last? With phones, we expect the battery to deteriorate after a couple of years. This is an investment. Will it need to be r
by Fej 10y ago
How long are the batteries going to last? With phones, we expect the battery to deteriorate after a couple of years. This is an investment. Will it need to be replaced in a few years' time?
- samcheng 10y agoTesla automotive batteries have shown pretty strong resilience over the few years they have been running, even on cars that have been driven hard. Cars are at >90% capacity after 50,000 miles. It's not like the batteries need to be replaced frequently. http://i.imgur.com/nWM9ZrS.gif http://i.imgur.com/nWM9ZrS.gif I wonder if these Powerwalls will have the same sophisticated battery thermal management system as the cars?
- sfblah 10y agoHouses and roofs last far, far longer than cars. 50k miles is 4 years for many drivers.
- samcheng 10y agoRight, but the question was about the batteries, which hang on the wall in the garage. Nobody has the expectation that such an appliance will last the lifetime of the house. Solar panels also degrade, roughly 1% per year, and commonly have a 20-year warrantee. That is less than the 30 years a good roof will last, but in the same ballpark. I doubt anyone knows the long-term resilience of these solar-panel-tile-roofs, but it's unlikely that they will have the extreme longevity of the clay tile roofs they imitate. In the right climate, those clay roofs can last a hundred years!
- mbrock 10y agoTen year warranty at least.
- will_hughes 10y agoThe problem with phones is that they don't have good management - the battery doesn't have active cooling, or heating when needed. They're also charged to full capacity or depleted to empty a lot of the time. These things are what kills battery life.
- Klez1993 10y ago"They're also charged to full capacity or depleted to empty a lot of the time." Does it affect battery life if I keep my phone charged even if it's at 100% ? (My phone is charging during the night, so it will be at 100% for a long time and keep charging). If it reaches 0%, how does that impact battery life compared to reaching 20% and charging up ? I never looked up these things but it might influence how I charge all my devices.
- usrusr 10y agoModern batteries deteriorate from heat and from the time they spend at the extremes of their charge cycle. As a general rule of thumb, you would get the lowest amount of wear by keeping the battery as close to 50% as possible all the time, only charging higher than that right before use and just enough to make it comfortably to the next charging opportunity. One of the worst things to do to a battery (not as bad as a deep discharge) is keeping it on full charge standby all the time. Think desktop replacement laptops. For a while I only charged my phone in the morning when it was still at >50% in the evening, e.g. a 40%-70% charge. In the end, convenience prevailed.
- Klez1993 10y agoThanks! Will definitely try to adjust how I charge my devices.
- mmcconnell1618 10y agoSounds like an opportunity to have scheduled charging. I'd like to plug my phone in at night and have the phone keep itself at some minimum until an hour before my morning alarm. Then start charging so it reaches 100% just about the time I wake up and unplug. Maximizing battery life might conflict with phone manufacturer's goal of getting you to buy a new phone every few years.
- codeulike 10y agoTen year warranty.
- sfblah 10y agoYes.