I can attest that the blade battery doesn’t seem to care if you take it all the way to 100% or drop it as low as 5% regularly. I’ve had my car for over 3 years now, and the battery degradation has been negligible. I’ve lost 1% over all this time, and both our cars (BYD HAN and Tang) are consistently allowed to drop under 10% before we decide to go charge them back to 100%. Granted, we live in the Caribbean, so we don’t have to deal with cold weather ever.
Never heard the “above 80%” thing. I’m pretty sure you’re wrong about this. With lead-acid batteries, this was optimal. I’m pretty confident that lithium ion batteries it’s best to keep the charge as high as possible. Ideally you’d only ever use it fully charged. It’s health is harmed by draining it low/fully.
I don’t own an EV, but I know enough about it that I’m pretty sure this is the case. You should look it up for your vehicle though. This advice also applies to phones and other lithium ion batteries too. Lead-acid was damaged by keeping the charge high, but lithium ion is damaged when low, and almost all devices are lithium ion now.
Lead acid batteries like to be kept fully charged all the time and don’t like to be discharged below 50% state of charge.
Lithium batteries like to be kept around half charged. They degrade quicker when kept at a high or low state of charge. Running lithium batteries from 20-80% does extend the lifespan, but charging to 100% is fine when you need to go on a longer trip. Just don’t keep it at 100% for long periods of time.
I think the BYD blade batteries can go down to 20% and up to 100% weekly. Though tbh I probably keep mine too high, I should lower it a bit closer to 80%…
Lithium ion batteries have a sweet spot of around 60 to 80 percent charge where very little wear takes place to charge or discharge. If you could keep it to just that 20-30 percent usage in that range it would pretty much last ten thousand cycles.
Charging to 100 or discharging below 50-60 percent accelerates the wear on the battery, but it is still much better than the wear rate on lead acid batteries that are cycled in a similar manner.
Yeah, the EV range is frustrating.
270 miles? Pretty good. Except you shouldn’t drive it below 20% or above 80%, so really the range is like 170. Cold winter? Now it’s like 75.
No regrets on our EV, but I would feel a whole more more comfortable with 2x the capacity.
Too bad we can’t buy BYD here.
I can attest that the blade battery doesn’t seem to care if you take it all the way to 100% or drop it as low as 5% regularly. I’ve had my car for over 3 years now, and the battery degradation has been negligible. I’ve lost 1% over all this time, and both our cars (BYD HAN and Tang) are consistently allowed to drop under 10% before we decide to go charge them back to 100%. Granted, we live in the Caribbean, so we don’t have to deal with cold weather ever.
Never heard the “above 80%” thing. I’m pretty sure you’re wrong about this. With lead-acid batteries, this was optimal. I’m pretty confident that lithium ion batteries it’s best to keep the charge as high as possible. Ideally you’d only ever use it fully charged. It’s health is harmed by draining it low/fully.
I don’t own an EV, but I know enough about it that I’m pretty sure this is the case. You should look it up for your vehicle though. This advice also applies to phones and other lithium ion batteries too. Lead-acid was damaged by keeping the charge high, but lithium ion is damaged when low, and almost all devices are lithium ion now.
confidently incorrect.
You could disabuse yourself with a quick search.
Lead acid batteries like to be kept fully charged all the time and don’t like to be discharged below 50% state of charge.
Lithium batteries like to be kept around half charged. They degrade quicker when kept at a high or low state of charge. Running lithium batteries from 20-80% does extend the lifespan, but charging to 100% is fine when you need to go on a longer trip. Just don’t keep it at 100% for long periods of time.
I think the BYD blade batteries can go down to 20% and up to 100% weekly. Though tbh I probably keep mine too high, I should lower it a bit closer to 80%…
Lithium ion batteries have a sweet spot of around 60 to 80 percent charge where very little wear takes place to charge or discharge. If you could keep it to just that 20-30 percent usage in that range it would pretty much last ten thousand cycles.
Charging to 100 or discharging below 50-60 percent accelerates the wear on the battery, but it is still much better than the wear rate on lead acid batteries that are cycled in a similar manner.
Batteries also need to be balanced. If you constantly keep your battery packs in that small range they’ll drift out of balance over time.
You should charge to 100% occasionally to allow the BMS to balance all the packs.