@jillpestana: Battery degradation is inevitable, but depending on the type of battery, it degrades in different ways. Here I talk about degradation in 2 types of lithium-ion battery cathode materials: NCM & LFP. These are in the li-ion batteries used in EVs, power tools, stationary energy storage, and much more (but your cell phone likely has LCO in its cathode). Thank goodness for battery management systems (BMS)! These make sure your battery system is operating safely. ⚡️ What else would you like to know about batteries? #lithiumbattery #batterylife #battery #energystorage #engineering
Please start your company, we need better batteries for future cars. Chinese BYD did it, you can too, just start.
2026-07-28 02:02:40
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clauskaffkathomsen :
Have seen serious videos where they have tested same phones for a long period charging to 100% and charging to 80%. The effect of not charging to 100% was minimal.
2026-07-05 23:29:45
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mctiktoklth :
Well, I hate this. 😂 So what is the best way to avoid degrading your battery, for the different kind of battery materials? Maybe I won’t ruin the battery on my next phone. 🤣
2026-07-05 20:49:01
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Sugito :
I have used my phone for 7 years and charged it at nights.. no problem with the battery, after 8 years time to replace the battery
2026-07-06 05:18:24
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Brad Foster :
But 100% is an arbitrary number.
One phone could be 100% at 3.85 and thr other at 3.75. The voltage is important. The percentage is just a calculation.
Just as another interesting point, not disagreeing.
2026-07-06 10:02:00
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Stv Rzr :
You cannot break a battery by charging it.
2026-07-06 07:48:29
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pmacdermott :
People change their equipment so often, this doesn't really matter.
2026-07-06 15:10:45
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CiCi :
Thanks
2026-07-06 01:22:14
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🦆 :
treat your battery like your engines rev counter.
if you keep it at full throttle for long periods then it damages and wears the engine faster.
2026-07-06 09:07:18
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shangrila_12 :
I have had many cell phones over the last 30 years (yes early Mororola's) and what kills batteries the fastest is draining them all the way down or below 30% all the time. going to 100% doesnt seem to affect them much. however I have my Samsung set to stop at 95% anyways
2026-07-28 16:20:01
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Henrik :
doesn't high heat eventually dry out the lithium paste?
2026-07-06 08:11:46
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Bogdan :
Do you have a video about LiFePO4 batteries?
2026-07-06 09:14:56
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Jill Pestana ⚡️ :
Like this video style? I could go on… degradation is very complex and there’s a lot to share. Here’s some basics across multiple li-ion battery chemistries.
2026-07-05 18:30:37
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Enough is enough :
That’s why I deviate from Tesla’s recommendations for my LFP. I don’t keep the charge limit at 100%. I put it on 100% once a week for the calibration. I usually use 40 to 60% a week.
2026-07-05 19:01:50
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gordonboyd693 :
When I had a landline, the phone was kept in its charging cradle when not being used. Assuming the battery was NiCad or NiMH, I wonder how the battery was affected by this process.
2026-07-06 07:30:00
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Marco Banana :
I’m glad you showed one of your patents…now I believe you 🤣🤣🤣
2026-07-17 22:55:48
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