Bison Bud

I'm not real sure just what your trying to say here, but information shown here and on the internet seems to invalidate your "No none at all" statement.

Bison Bud

Your statement is appreciated and helps to make my initial post and my personal research worth the effort! Frankly, I learned something myself and I'd bet there are a lot more out there that would benefit from this type of information. Knowledge is power!

gvarner Loc: Central Oregon Coast

My understanding is that modern lithium batteries do not have a memory but discharging below 25% may be harmful.

jerryc41 Loc: Catskill Mts of NY

From several sources online, lithium batteries like to be between 20% and 80% charged. Very low and very high stress them. Although we all like fully charged batteries, it stress on the battery getting it to 100%.

As a side note, batteries are often rated for so many charges. What that means is 100% charged. If you charge from 0% to 100%, that is one charge. Charging from 40% to 90% is 1/2 charge. Going from 30% to 80% is another 1/2, so that counts as charge #2.

EDIT: Leaving a device on the charger after it is charged is not good. The charging will stop when it reaches 100%. As it gradually loses a bit of charge, the charger will turn on again. This is tough on the battery.

jerryc41 Loc: Catskill Mts of NY

Longshadow Loc: Audubon, PA, United States

Easy to post a link if you just went there or saved it.
(I don't save links for every place I go, only very few.)

Otherwise.......

BebuLamar

Most recommend not to overcharge. It's better to slightly undercharge. Also recommendation not to let the battery discharged completely. They do recommend to let the battery discharges completely once in a while but that only to calibrate the gauging circuit not to prolong the battery life. Most Li-Ion battery have the gauging circuit to record the charge and discharge to figure out how much charge is left in the battery. That is why checking charge status of the battery is very difficult.

sr71 Loc: In Col. Juan Seguin Land

Long term safe storage charge for lipo's etc is 50% of the batteries capacity. Charge to full capacity just b4 use.
Do NOT completely discharge these as stated here, one could start a fire or the battery will become unusable. I have not found any charger for camera batteries that would make it easy to maintain them properly as in r/c world.

burkphoto Loc: High Point, NC

Many chargers are smart like this:

About Optimized Battery Charging on your iPhone (from Apple’s site):

With iOS 13 and later, your iPhone learns from your daily charging habits to improve the lifespan of your battery.

A battery’s lifespan is related to its chemical age, which is more than just the length of time since the battery was assembled. A battery's chemical age results from a complex combination of several factors, including temperature history and charging pattern. All rechargeable batteries are consumable components that become less effective as they chemically age. As lithium-ion batteries chemically age, the amount of charge they can hold diminishes, resulting in reduced battery life and reduced peak performance. Learn more about iPhone battery and performance and how to maximize battery performance and lifespan.
With iOS 13 and later, Optimized Battery Charging is designed to reduce the wear on your battery and improve its lifespan by reducing the time your iPhone spends fully charged. When the feature is enabled, your iPhone will delay charging past 80% in certain situations. Your iPhone uses on-device machine learning to learn your daily charging routine so that Optimized Battery Charging activates only when your iPhone predicts it will be connected to a charger for an extended period of time. The algorithm aims to ensure that your iPhone is still fully charged when unplugged.

Optimized Battery Charging is on by default when you set up your iPhone or after updating to iOS 13 or later. To turn off the feature, go to Settings > Battery > Battery Health > Optimized Battery Charging.

When Optimized Battery Charging is active, a notification on the Lock screen says when your iPhone will be fully charged. If you need to have your iPhone fully charged sooner, touch and hold the notification and then tap Charge Now.

If Optimized Battery Charging doesn't activate
Optimized charging is designed to engage only in locations where you spend the most time, such as your home and place of work. The feature doesn't engage when your usage habits are more variable, such as when you travel. Because of this, some location settings must be enabled for Optimized Battery Charging to activate. None of the location information used for this feature is sent to Apple.
Here are a list of settings that must be enabled:
Settings > Privacy > Location Services > Location Services.
Settings > Privacy > Location Services > System Services > System Customization.
Settings > Privacy > Location Services > System Services > Significant Locations > Significant Locations.
Published Date: January 10, 2020

jerryc41 Loc: Catskill Mts of NY

I have 147 pages of links for photo-related topics.

Longshadow Loc: Audubon, PA, United States

I have, maybe, 25-30 links total?
(None are about batteries.)

Jimmy T Loc: Virginia

And when you post the links when answering/responding to questions is VERY helpful and appreciated.

Jimmy T Loc: Virginia

Gene, given the variety of responses so far I concur with you . . . "It's so easy to post a link these days."
I do not feel that UHH folks intentionally post "bum dope". However, it is easy to repeat "urban legend" as gospel.
When sharing the link in the post it makes it easier for the reader to check other sources to validate the shared info.
Also, many times advice "matures" and evolves . . .
Smile,
JimmyT Sends

sippyjug104 Loc: Missouri

Interesting topic. I recently watched a video that provided quite a bit of information comparing the cost of owning an electric-powered automobile compared to a conventional gasoline-powered one. There are presently some shortcomings regarding the batteries which include how much to run them down and how much to charge them. A point that it made was not to top off the electrical charge each time the vehicle is used and that it is better to let it drain down to 30% and charge it back up to around 80% for longer life. It appears that this is much the same for camera batteries too.

Fotoartist Loc: Detroit, Michigan

Batteries Plus advertises they have a battery for everything. Wrong. Try getting one for your electric toothbrush.