Battery charging procedure

[Shooter88]

I just bought a Tero 3.0 and put 21 miles on it yesterday, about 80% concrete bike path with some significant climbs and 20% easier off road foot/bike path stuff. This thing is a blast.
Anyway, I have about 55% of the battery left. Should I use the charge down to say 20% or so then recharge to 100% in order to get the longest service life out of it? I found the data below online which says there is no need to do this. What do you professionals say?
Thanks

Contrarily to some received ideas, Li-ion batteries don't have a memory. They don't need regular full discharge and charge cycles to prolong life. It's actually the contrary: the smaller the discharge (low DoD), the longer the battery will last, the more cycles it will be able to do.

 

[6zfshdb]

In general, the best rule of thumb for most lithium batteries:

Store for periods longer than a week or so at 40 to 50%.

don't discharge below 20% on a regular basis and charge to 80 - 100% just before a ride

Don't leave the battery fully charged for periods longer than a couple of days.

Our resident expert on the subject, @Ravi Kempaiah, posted this guide several years ago with more detailed information:

E-Bike Battery Guide

This thread is dedicated for helping new E-bike owners to understand and maintain their batteries in the best possible way. There is a lot of confusion for any new E-bike owner as to how one should treat their batteries: Shop owners may say one thing, online resources may another thing, someone...

electricbikereview.com

Welcome to the forum and good luck with your new ride!

 

[rayray]

I’m sure what @6zfshdb says is true. However, I’m lazy, so I just charge my Specialized Creo to 100% after every ride, based on the thought that on my next ride I might need it. The battery health, per both the Mission Control app and the BLEvo app, is still at 100% after over a year. It may be worth mentioning that I don’t leave it plugged in much beyond the full charge point, as I use a timer to shut it down. YMMV

 

[indianajo]

I charge before long trips (24-27 miles) if battery is under 50%. I stop charge at 80-90% except 2 times a year 100%. My battery is 5 years old, doing fine.

 

[6zfshdb]

It should be noted that batteries lose capacity with age, even on the shelf. Many here, including myself, don't ovely baby our batteries. IMO, they're meant to be used and if I use them up, so be it.

I see no reason to coddle a battery to the point where it outlives the bike. New battery technology will emerge in the near future and I, for one, will likely get a new bike that uses it.