Electronics > Projects, Designs, and Technical Stuff

Another battery tool: scam or proper product?

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thexeno:
Hi,

I was some time ago to the MakerFaire Vienna, and I step into a product claiming to increase the lifespan of a phone battery.
https://chargie.org/

Can it be analyzed, maybe on a eevBlog video?
Or, what do you think?

Cheers,

Rerouter:
This is not batteriser, but more like over-provisioning an SSD, always preventing the phone from completing a charge cycle and trying to keep the amount of charge on the battery consistant,

However its rarely the full charge cycles that are hurting modern batteries, instead it is the fast charging, and the number of cycles

Daixiwen:
The things that degrade a LiIon battery life are high charging currents, as you said, as well as usage in high temperatures, charge at very low temperatures, and the amount of time spent at low state of charge (~< 15%) and high state of charge (~> 80%).
You can have a lot more cycles if you keep your battery constantly between 20 and 80% and avoid the fully charged or fully discharged states.

So this device makes sense to preserve your battery life. There are more and more systems (phones, laptops, electric vehicles) that use different strategies to keep the battery in that zone.
If your Android phone is rooted you can also use this free app that does the same thing: Battery Charge Limit [ROOT]

tooki:
I think it's less a scam and more just possibly uninformed.

Yes, it seems to be true that charging to less than 100% can extend battery lifespan. But if it were THAT big a problem, gadget manufacturers would simply do it that way by default, and have an "extended battery charge" checkbox in the settings to let you override it. But they don't, which makes me think it's not as big an improvement as we'd hope.

As for misinformed... the first reference cited is battery university, which seems to be roundly debunked as one guy's own pulled-out-of-thin-air "data".

NiHaoMike:

--- Quote from: tooki on September 17, 2019, 08:47:56 pm ---Yes, it seems to be true that charging to less than 100% can extend battery lifespan. But if it were THAT big a problem, gadget manufacturers would simply do it that way by default, and have an "extended battery charge" checkbox in the settings to let you override it. But they don't, which makes me think it's not as big an improvement as we'd hope.

--- End quote ---
Some Lenovos actually have that. But in general, manufacturers just want the battery to last what the average customer would call a reasonable lifetime. Why add a feature that reduces future sales?

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